Quaternary Period animals

Plants & Animals of the Quaternary Era Sciencin

  1. From elephants and tigers to great white sharks and dolphins, quaternary period animals share genetic relationships to their larger counterparts that existed during the Pleistocene. The rise in temperature and the relative stability of the Holocene climate also allowed tropical and temperate rainforests, deciduous and coniferous forests as well as ice caps and deserts to develop
  2. Quaternary Period: Climate, Animals & Other Facts Climate. Scientists have evidence of more than 60 periods of glacial expansion interspersed with briefer intervals of... Animals. These steppes supported enormous herbivores such as mammoth, mastodon, giant bison and woolly rhinoceros, which....
  3. Some of the animals that are in the Quaternary Period: mammoth, mastodon, giant bison and woolly rhinoceros. Any descendants still living- Man, whales, sloths, and elephants. These animals were preyed upon by equally large carnivores such as saber toothed cats, cave bears and dire-wolves
  4. Ice, Giant Mammals, Humans and More The Quaternary Period began with an ice age about 1.8 million years ago. Throughout the period glaciers have been present, sometimes more and sometimes less. It is also the time of giant mammals, humans, Saber toothed cats and other fierce predators all share the stage as the earth takes its present form

From Wikipedia, the free encyclopedia. The Quaternary period (from 2.588 ± 0.005 million years ago to the present) has seen the extinctions of numerous predominantly megafaunal species, which have resulted in a collapse in faunal density and diversity and the extinction of key ecological strata across the globe On land, the chilliest stretches of the Quaternary saw mammals like mammoths, rhinos, bison, and oxen grow massive and don shaggy coats of hair. They fed on small shrubs and grasses that grew at..

Quaternary Period: Climate, Animals & Other Facts Live

  1. We are using large compilations of carefully audited radiocarbon dates for each mammal species to help us reconstruct their Late Quaternary distributions. We are also developing a similar database of direct and indirect radiocarbon dates for modern humans ( Homo sapiens ) and neanderthals ( H. neanderthalensis ) to reconstruct their spread and density across northern Eurasia and North America during this time
  2. Woolly mammoths, woolly rhinoceroses and saber-toothed cats were some of the most iconic animals of the Quaternary Period. From the formation of our planet 4.6 billion years ago, we've come an unimaginably long way in the 'Journey through the History of the Earth'
  3. Quaternary (/ k w ə ˈ t ɜːr n ə r i, ˈ k w ɒ t. ər ˌ n ɛr. i / kwə-TUR-nə-ree, KWOT-ər-nerr-ee) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.588 ± 0.005 million years ago to the present. The Quaternary Period is divided into.
  4. ids gained a foothold on earth. All of the plants and animals that we see today are part of the Quaternary Period; however, there are also extinct animals and plants that lived on the earth during its early stages

Fauna and flora. Ninety percent of the animals represented by Quaternary fossils were recognized by Charles Lyell as being similar to modern forms. Many genera and even species of shellfish, insects, marine microfossils, and terrestrial mammals living today are similar or identical to their Pleistocene ancestors Some of the animals that are in the Quaternary Period: mammoth, mastodon, giant bison and woolly rhinoceros. This is answered comprehensively here. Likewise, what type of animals lived during the Quaternary Period This is a picture of one of the only largest animals during the quaternary period who was a herbivore. This animal is 6 ft. 6in. tall and it eats ground plants for its diet. The woolly mammoth develop deposits of fat and shaggy coat to protect itself from the cold. The woolly mammoth was sometimes hunted down for it's fur by early Genus Homo

Animals that lived during the Quaternary period. The Quaternary includes two geologic epochs : the Pleistocene and the Holocene . Quaternary period is still going on This sudden emergence of mankind during the Quaternary Period has led some paleontologists to dub this period of time as the Age of Mankind. At the beginning of this period, Homo erectus emerged in Africa and after that, many hominids - each with larger brains - began to emerge as well The fossil record provides evidence that by the end of the Tertiary Period (also known as the Neogene period), the species Ardipithecus ramidus walked upright in an area now encompassing modern Ethiopa. Near the start of the Quaternary Period, a number of species lived and became extinct before modern humankind (Homo sapiens) appeared The Quaternary Period is the third and last of the three periods of the Cenozoic Era. You and I are living in this period, which began only 2.58 million years ago. This is less than 0.1% of all of geologic time! A thin layer of sediments deposited during the Quaternary covers much of the Earth's land surface Hominids - The Quaternary Period saw the spread of Homo erectus (early human) from Africa to Asia and Europe and later the spread of their more modern form (Homo sapiens) to the Americas and Australia; Extinctions. By the end of the first half of the Quaternary Period many species of mammals had become extinct in sections of the Earth

Dinosaurs|Extinct Life|Extinction|Prehistoric Animals|The

The Quaternary Period Evidence We will all be evidence of the Quaternary period someday, however, let's discuss the already existing pieces. There are fossils of megafauna, including saber-toothed cats, mammoths, and many pre-human hominins. The evidence of glaciation includes frozen pieces found in the regions of permafrost Quaternary, in the geologic history of Earth, a unit of time within the Cenozoic Era, beginning 2,588,000 years ago and continuing to the present day. The Quaternary has been characterized by several periods of glaciation (the ice ages of common lore), when ice sheets many kilometres thick have covered vast areas of the continents in temperate. THE QUATERNARY PERIOD is the time in which people became fully human and the dominant animal species on earth. The Quaternary is Earth's most recent geological period and includes the Pleistocene and Holocene epochs. (Eras, periods, and epochs comprise the geological calendar All the animals in the Quaternary Period had to adjust to the harsh weather, including; Mammoths, bison, rhinoceros, homo erectus, etc. A few of these animals now are extinct. One of the most intelligent animals was the homo erectus. The homo erectus was an ape type species that looks surprising like a human today Cave lions, sabre-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths were prevailing species of the Quaternary period. Without the dinosaurs, plant life had an.

What animals were in the Quaternary Period

This era began at the time of close of the Cretaceous Period that saw an end to the remaining non-avian dinosaurs. The Cretaceous-Paleocene extinction event, making all dinosaurs extinct, occurred before this era. This era includes the Paleogene Period, the Neogene Period and the Quaternary Period. We will discuss Cenozoic Animals The Quaternary period saw the extinctions of numerous predominantly larger, especially megafaunal, species, many of which occurred during the transition from the Pleistocene to the Holocene epoch. However, this extinction wave did not stop at the end of the Pleistocene, but continued, especially on isolated islands, in Holocene extinctions S.A. Elias, in Reference Module in Earth Systems and Environmental Sciences, 2013 Abstract. The Quaternary Period is the most recent geologic era spanning the last 2.6 My. The Quaternary is divided into two epochs: the Pleistocene and the Holocene. The Pleistocene includes the interval from 2.6 mya to 11,000 yr BP, and is characterized by more than 50 large-scale climatic oscillations from. The Quaternary Period, comprising the Holocene and Pleistocene Epochs, encompasses the last ~2.6 Ma during which time Earth's climate was strongly influenced by bi-polar glaciation and the genus. Whale. Retrieved from https://walkingwith.fandom.com/wiki/Category:Quaternary_animals?oldid=26154 . Categories: Cenozoic animals. Neogene animals

This mammoth, found in deposits in Russia, was one of the largest land mammals of the Pleistocene, the time period that spanned from 1.8 million to ~10,000 years ago. Pleistocene biotas were extremely close to modern ones — many genera and even species of Pleistocene conifers, mosses, flowering plants, insects, mollusks, birds , mammals , and. Animals such as PROCOPTODON,DIPROTODON,TOXODON,MAMMUTHUS,DEINOTHERIUM,COELODONTA lived in the quaternary period.Plants such as BIRCH,SWEETGUM lived in the quaternary period, as well as the plants. Vetenskapsmän har bevis på mer än 60 perioder med glacial expansion, som spridits med brieferintervaller av varmare temperaturer. Hela den kvartära perioden, inklusive nutiden, kallas en istid på grund av närvaron av minst ett permanent isark (Antarktis); Pleistocenepojken var emellertid i allmänhet mycket torrare och kallare än den nuvarande tiden The Quaternary Period: A Time Of Giant Mammals or Megafauna. The Pleistocene is known for its megafauna or giant mammals. Along with the wooly mammoth and wooly rhinoceros there were other giants: bison, ground sloths, and deer

The Quaternary Period: Ice ages, Megafauna, saber tooth

Paleontology: The Quaternary has also seen the evolution and expansion of our own species, Homo sapiens. Quaternary fossils are often abundant, well preserved, and can be dated very precisely. Many paleontologists study Quaternary fossils, such as diatoms, foraminifera, and plant pollen in order to understand the climates of the past LQE: late Quaternary extinction Overkill hypothesis: hypothesis that extinction results because human hunting causes death rates to exceed birth rates in prey species Megafauna: animals with a body mass greater than 44 kg kyr BP: 1000 years before present INTRODUCTION Fifty thousand years ago, ecosystems around the globe were populated wit The Quaternary period was a time of large and repeated climatic change. Evidence obtained from the oceanic floor has shown that these changes have been also extremely rapid, in geological terms. Cold conditions have been dominant during most of the Quaternary, whereas interglacial conditions were shorter-lived; individually, they were not longer than 10,000-15,000 years

The Cambrian Period marks the time of emergence of a vast number of fossils of multicellular animals, and this proliferation of the evidence for complex life is often called the Cambrian Explosion. Models of plate tectonic movement suggest a very different world at the beginning of the Cambrian, with that plate which became North America largely devoid of life as a barren lowland Quaternary (ISSN 2571-550X) is an international, peer-reviewed, open access journal that covers all aspects of Quaternary Science, embracing the whole range of scientific fields related to geological, geographical, biological, physical, chemical, environmental and human sciences.It publishes reviews, research articles, communications, technical notes and essays We have been able to find fossils from all the geological periods, including in the Quaternary Geological Period, such as pecten gibbus and neptunea tabulata, and the Tertiary period, calyptraphorus velatus and venericardia planicosta. Pecten gibbus are index fossils found in the Cenozoic Era in the Quaternary period, 1.8 million years ago

The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets associated with Milankovitch cycles and the associated climate and environmental changes that occurred. The Quaternary Period follows the Neogene Period and extends to the present During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans appeared in Africa near the end of the period. Some continental movement took place, the most significant event being the connection of North and South America at the Isthmus of Panama, late in the Pliocene. This cut off the warm ocean currents from the Pacific to the Atlantic Ocean, leaving only the Gulf Stream to transfer heat to the Arctic Oc


Quaternary extinction - Wikipedi

(320 mya to 286 mya) Second period in the Carboniferous time, coal bearing rocks form. Part of the Age of Amphibians, along with Mississippian and Permian. Permia Cenozoic Era• Marine animal examples: - Algae, Mollusks, Fish and Mammals• Land animal examples: - Bats, Cats, Dogs, Cattle and Humans - Humans are thought to have appeared around 3.5 million years ago (during the most recent period - Quaternary).• Flowering plants were now the most common plant life. 26. Cenozoic Mammal An artists representation of life in the Ediacaran seas during the last period of the Proterozoic aeon, including the mysterious Dickinsonia and primitive jellyfish. In the third part of the series ''A Journey through the History of Earth, we'll be exploring one of the most intriguing yet mysterious periods of our planet's past

Quaternary Period Information and Facts National Geographi

Quaternary Period | Sutori

Extinction of large mammals in the Late Quaternary Ice Age

However, they certainly didn't give birth to the first animals, since the first terrestrial animals did not appear until the Silurian Period, 428 million years ago. If the Snowball Earth hypothesis is true, then we can probably trace our own origins and, indeed, the origins of all animals, to the darkest depths of the oceans The Quaternary period began about 1.8 million years ago (1,800,000 years ago), coming after the Tertiary. The Quaternary is still going on today - we live in the Quaternary period. Other animals like cattle, goats, wolves, and dogs did fine. Probably because of the warmer,. Today, it is well known that human activities put larger animals at greater risk of extinction. Such targeting of the largest species is not new, however. Smith et al. show that biased loss of large-bodied mammal species from ecosystems is a signature of human impacts that has been following hominin migrations since the Pleistocene. If the current trend continues, terrestrial mammal body sizes. Now, animals like bison, moose, caribou, bear, wolf and lynx could migrate from one continent to another, using the land bridge - the same route taken by the fi rst humans to reach North America, roughly 23 000 years ago. MEANWHILE, AT HOME Manitoba went through many glacial/ interglacial cycles in the Quaternary period and was often. The last major impact crater with a diameter over 31 mi (50 km) struck Earth near what is now Kara-Kul, Tajikistan at end of the Tertiary Period and the start of the Quaternary Period. The extinction of the dinosaurs and many other large species allowed the rise of mammals as the dominant land species during the Tertiary Period

Quaternary Earth - The Age of Man - Earthly Univers

As the Jurassic period dawned and Earth waved goodbye to the Triassic period and many of the dinosaurs which thrived during that time, it also ushered in a new time of animal life. A variety of events which occurred at the end of the Triassic period and during the Jurassic period gave rise to many more species of animals as well as much more diversity within the species Cretaceous Period Animals: Introduction. Although the best-known Cretaceous animals were the dinosaurs, they weren't the only animals around at the time.. Scurrying between the feet of fearsome meat eaters such as Tyrannosaurus and Spinosaurus were many types of early mammal - some of which (as you'll find out below) were even big enough to eat small dinosaurs

The Quaternary period, recording the most dramatic change in the Earth climate system, is of particular interest when scrutinizing the causal factors leading to the progressive reconstruction of mammalian communities, as well as the changes in biogeography and biodiversity World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. Winner of the Standing Ovation Award for Best PowerPoint Templates from Presentations Magazine. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect By the Quaternary Period, the landmasses had achieved the basic shapes and global positions in which we see them today. Nova Scotia was (and still is) located on the eastern coast of the North American continent at the edge of the ever-widening Atlantic Ocean. Click here to see an animated image of the Atlantic Ocean forming. (127k) Pleistocene. Quaternary Period The current and most recent of the three periods of the Cenozoic Era. It is divided into two Epochs - The Pleistocene Epoch, which lasted from from 2 million years ago to about 12,000 years ago, and The Holocene Epoch, which began about 12,000 years ago

Quaternary - Wikipedi

interglacial cycles in the Quaternary period and was often completely covered by ice. During the glacial periods, plants and animals were slowly forced southward into ice-free areas. During the interglacial periods (when the ice retreated), most species gradually returned to the newly exposed landscape to fi nd vast open areas, with vegetatio 4.3. Glaciation During the Quaternary. The beginning of the Quaternary, the Early Pleistocene (2.6-0.8 Ma) was characterized by climatic fluctuations dominated by the 41 ka orbital precession cycle, during which relatively few cold periods were sufficiently cold and long to allow the development of substantial ice sheets.Only 14 of the 41 cold stages of that period currently show evidence of. Late-Quaternary extinctions (LQEs) of megafauna occurred during a period of global, time-transgressive extinctions that selectively affected megafauna (terrestrial vertebrates weighing >44 kg) from 50 to 4 ka (Koch and Barnosky, Reference Koch and Barnosky 2006; Stuart, Reference Stuart 2015) The Tertiary Period ran from approximately 66 million years ago to about 2.58 million years. While this term is no longer officially recognized by International Commission on Stratigraphy, it is still one that is used on a widespread. Nowadays, this period is divided between the Paleogene Period and the Neogene Period. This term began to [

Geology: Plants & Animals Of The Quaternary Er

  1. Here's an article about the Quaternary Period, and here's an article about the asteroid extinction theory. If you'd like more info on the Tertiary Period,.
  2. Or click on a subdivision of the Cenozoic to visit its exhibit! The chart at left shows the several subdivisions of the Cenozoic Era. After the column labelled Cenozoic, the next column shows the two periods, the Tertiary and the Quaternary.The Tertiary Period is subdivided into the Paleogene and the Neogene, though we have not created exhibits for these divisions
  3. The quaternary period first species were started to evolve about 1.8 million years ago. The quaternary period is the latest period with the oldest forms of animals. Such as, saber-tooth cats, wooly mammoth, lion as we still see today, dicerorhinus there is a lot of animals and different species
  4. Quaternary collections in numbers. Estimated number of specimens/collections: Approx. 26.000 lots representing somewhere between 5 and 10 million bones or fragments thereof. More than 800 species are represented in the subfossil remains and almost 600 species in the recent comparative collection

Quaternary - Quaternary life Britannic

The Quaternary Period (the last 1.8 million years), characterized by multiple climatic and animals, and the consequent increased likelihood of isolating small populations in areas with new selective regimes (Dynesius and Jansson, 2000; Jansson and Dynesius, 2002). O The Quaternary spans from 2.58 million years ago to present day, and is the shortest geological period in the Phanerozoic Eon. It features modern animals, and dramatic changes in the climate. It is divided into two epochs: the Pleistocene and the Holocene. The Pleistocene lasted from 2.58 million to 11,700 years ago Some of the animals that are in the Quaternary Period: mammoth, mastodon, giant bison and woolly rhinoceros. What was Earth's climate during the Quaternary Period? 1 Introduction. Geological records show that over the Quaternary period, that is, the past approximately 2.6 Ma, the Earth's climate has repeatedly varied from warm interglacial to cold glacial periods

Plio-Pleistocene | Perissodactyl

What plants and animals lived in the Quaternary Period

  1. Animals: Megafauna, or large mammals, thrived during the Pleistocene period. Animals, such as woolly mammoths, mastodons, true horses, saber-toothed tigers, cave bears and giant deer, are some of the well known giant mammals during the Pleistocene epoch
  2. Only the specialized ice age mammals such as Mammuthus and Coelodonta, with their thick wool and fat insulation, were suited to live in very cold climates. Humans developed throughout the Pleistocene period (1.6 million-10,000 years ago) in Africa and migrated northward into Europe and Asia
  3. The Quaternary Period is the geologic time period from the end of the Pliocene Epoch roughly 1.806 million years ago to the present. The Quaternary includes 2 geologic subdivisions -- the Pleistocene and the Holocene Epochs. In a recent revision of the international classification of geological time periods, the Quaternary was subsumed into the Neogene
  4. Quaternary palaeoecology in Europe and North America has revealed a series of southward range contractions of both plant and animal species during the last glacial period followed by rapid northward range expansions in the wake of deglaciation. A large number of molecular studies in animal systems have supporte
  5. The circum-Japan Sea region (CJSR) greatly impacted animal diversity in the Eastern Palearctic during the Quaternary. However, its role in avian diversification has been underestimated because of the high dispersal capabilities of birds over the sea. We investigated the phylogeographic and demographic history of the Eurasian Jay (Garrulus glandarius), focusing on CJSR populations
  6. istered by a single intravenous dose
  7. quaternary — adj. & n. adj. 1 having four parts. 2 (Quaternary) Geol. of or relating to the most recent period in the Cenozoic era with evidence of many species of present day plants and animals (cf. PLEISTOCENE, HOLOCENE)

Animal/Plant Life - Hadrie

To geologists, an ice age is marked by the presence of large amounts of land-based ice. Prior to the Quaternary glaciation, land-based ice formed during at least four earlier geologic periods: the Karoo (360-260 Ma), Andean-Saharan (450-420 Ma), Cryogenian (720-635 Ma) and Huronian (2,400-2,100 Ma) In the past 4 Quaternary glaciations were classified and named: starting with the most ancient, these are named Gunz, Mindel, Riss and Würm from th National Geographic Society, n.d. Web. 12 Jan. 2015. The Quaternary Period: Ice, Megafauna, and Hominids. Fossils Facts and Finds.com. N.p., n.d. Web. 12 Jan. 2015. Quaternary Period. National Geographic. National Geographic Society, n.d. Web. 11 Jan. 2015. Quaternary Period. Timetoast The Ice Age film franchise follows the adventures of three mammalian friends: Manny the woolly mammoth, Sid the giant ground sloth, and Diego the saber-toothed cat during the ice age. A passing knowledge of Earth's history would inform the viewer that this is not meant to be an accurate representation of the real ice age that began over 2 million. The Quaternary Period can be subdivided into two epochs: the Pleistocene and the Holocene. This period is thought to include the ice age and the most climate change. It also would include the extinction of most of the prehistoric animals such as the saber-tooth cat , the woolly mammoth and others

Category:Quaternary Animals Cool Dino Facts Wiki Fando

Geography 527. The Quaternary Period. Spring 2012 Instructor: Joe Mason 207 Science Hall mason@geography.wisc.edu 262-6316 Office Hours: Monday, 11:00 AM to 12:00 Noon; Tuesday, 1:00-2:00 PM, or by appointment. Introduction to the course. The Quaternary is the most recent period of geologic time period on the clock. Hint: Each hour corresponds to 375 million years. • Include photographs of plant and animal fossils or artist renditions of organisms that lived during the period. Quaternary 2 mya to present Tertiary 65-2 mya Cretaceous 145-65 mya Jurassic 200-145 mya Triassic 250-200 mya Permian 300-250 mya Carboniferous 360-300 mya.

Quaternary Period - Biodiversity During the Pleistocene Epoch of the Quarternary Period, megafauna (giant mammals) are known to have roamed the land. As well as the wooly mammoth and wooly rhinoceros, other giants included saber tooth tigers, cave bears, sloths, dire wolves, etc During this time, grasses evolved and later grazing animals that ate grass. The Quaternary period had climate that cooled and warmed in cycles, creating a series of Ice ages. Summarize the main changes in Earth's environment and life forms that occurred during the Cenozoic Era

The Quaternary Period - Facts and Picture

Cenozoic Era• Marine animal examples: - Algae, Mollusks, Fish and Mammals• Land animal examples: - Bats, Cats, Dogs, Cattle and Humans - Humans are thought to have appeared around 3.5 million years ago (during the most recent period - Quaternary).• Flowering plants were now the most common plant life. 26. Cenozoic Mammal Late Quaternary glaciations were extensive and characterized by valley glacier systems that sculpted alpine landscapes at higher elevations and deposited prominent terminal and recessional moraines in valleys . Individual glaciers were typically interconnected by thin, upland ice fields and/or pervasive ice divides

Quaternary Period Encyclopedia

  1. Cold Manitoba - the Quaternary What's the planet been up to in the past 2.6 million years? Animals such as mammoths, bison and caribou grazed in the grassland. This attracted the larger carnivores like sabre-tooth cats, bears and wolves. As the climate got warmer, camels, horses and lions also came on the scene. Phanerozoic 2 5 Icaronycteris M a 1.
  2. The Jurassic period saw a number of other animals that thrived alongside the dinosaurs and reptiles that we are most familiar with. Below we will take a look at some of these lesser known creatures of the period. Ambondro Mohabo; Apiocrinites; Castorocauda; Coelodiscus; Dinnebitodon; Eozostrodon; Guimarotodon; Juramaia; Kayentatherium; Megateuthis Gigantea
  3. Hundreds of Quaternary fossil localities have been known up to now, more than 60 of which contain warm-adapted elements which can be referred to 20 species. Among the warm-adapted elements appearing in north China, Hystrix, Macaca, Palaeoloxodon, Dicerorhinus and Bubalus are the most frequently recorded genera
  4. Quaternary; Paleocene Eocene Oligocene Miocene Pliocene Pleistocene Holocene; Danian: Selandian: Thanetian: Ypresian: Lutetian: Bartonian: Priabonian: Rupelian: Chattian: Aquitanian: Burdigalian: Langhian: Serravallian: Tortonian: Messinian: Zanclean: Piacenzian: Gelasian: Calabrian: Ionian (middle pleistocene) Tarantian (late pleistocene
  5. The Tertiary time period is within the Cenozoic Era and lasted over 63 million years. It contained five separate epochs: Paleocene, Eocene, Oligocene, Miocene an Pliocene. After the Cretaceous Period extinction of dinosaurs, different mammals emerged and thrived throughout each of the five epochs
  6. During the Quaternary Period multiple glaci-ations of varying spatial extent occurred in Scandi-navia starting in the Early Quaternary (Mangerud et al. 1996, Kleman et al. 2008) and with the first glaciation reaching the shelf-edge occurring ~1.1 Ma (Sejrup et al. 2000). As ice sheets are effectiv
  7. Animals of the Cretaceous Period. Between 85 and 65 million years ago (the Late Cretaceous Period), animals lived in North Dakota on land, sea, and in the air. The Western Interior Seaway put much of North Dakota under a warm shallow sea for millions of years
Quaternary - Quaternary life | Britannica

Fig. 5 - In contrast to the glaciations, the climate in the interglacial periods was characterised by markedly higher temperatures, as this example of the Riss-Würm interglacial period 120,000 years ago shows.The icebergs withdrew considerably, and the sea rose, with the concomitant inundation of coastal areas.Plants and animals were able to spread out again in the North, which was covered. Quaternary ammonium compounds (QACs) are cationic surfactants. They are synthetic organically tetrasubstituted ammonium compounds, where the R substituents are alkyl or heterocyclic radicals. A common characteristic of these synthetic compounds is that one of the R's is a long-chain hydrophobic aliphatic residue The Quaternary Period is the geologic time period from the end of the Pliocene Epoch roughly 1.8-1.6 million years ago to the present. The Quaternary includes 2 geologic subdivisions -- the Pleistocene and the Holocene Epochs.. The term Quaternary (fourth) was proposed by Jules Desnoyers in 1829 to address sediments of France's Seine Basin that seemed clearly to be younger than Tertiary Period.

Quaternary Period—2

The Quaternary Period - personal

Overview of the Cenozoic Era Time PeriodsThe Pleistocene Period, Baby it’s cold outside! | Osho News
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