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therapsid
Table of Contents
Introduction References & Edit History Quick Facts & Related Topics
Images & Videos
synapsid and reptilian skull types
Collage showing a dog plus a saber-toothed cat equaling a prehistoric, quadrupedal creature with thick limbs and dark, hairless skin.
Lystrosaurus Edaphosaurus
Quizzes
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names
Lion (panthera leo)
Deadliest Animals Quiz
Young chimpanzee dressed in a shirt and sweater vest, scratching his head thinking. (primates)
Wild Words from the Animal Kingdom Vocabulary Quiz
Mute swan with cygnet. (birds)
Match the Baby Animal to Its Mama Quiz
vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Read Next
animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.
Abundant Animals: The Most Numerous Organisms in the World
Spider monkey swinging in a tree. (primate, jungle animal)
Why Do Animals Have Tails?
Discover
Battle of the Alamo from "Texas: An Epitome of Texas History from the Filibustering and Revolutionary Eras to the Independence of the Republic, 1897. Texas Revolution, Texas revolt, Texas independence, Texas history.
6 Wars of Independence
Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.
What is Holy Week?
Nazi Germany, Nazi SS troops marching with victory standards at the Party Day rally in Nuremberg, Germany, 1933. (Schutzstaffel, Nazi Party, Nurnberg)
Why Was Nazi Germany Called the Third Reich?
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd
Causes of the Great Depression
pg 229Nazi parade features a banner proclaiming, "Death to Marxism."The possibility of a peaceful Germany after World War I was precluded entirely by the terms of the Versailles Treaty and theintransigent hostility of France and England. Stripped of indu
Were the Nazis Socialists?
Two chicks near an egg with a white background (poultry, chick, chickens, birds).
What Do Eggs Have to Do with Easter?

therapsid: Media

fossil tetrapod order
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Videos

What came before the dinosaurs?
Humans might be related to these weird, hairless dogs.
Video: Encyclopædia Britannica, Inc.

Images

synapsid and reptilian skull types
Synapsid and reptilian skull types.
Encyclopædia Britannica, Inc.
Lystrosaurus
Therapsids, such as Lystrosaurus, were mammal-like reptiles that thrived...
Encyclopædia Britannica, Inc.
Edaphosaurus
The pelycosaur Edaphosaurus. Neither reptiles nor dinosaurs, pelycosaurs...
Encyclopædia Britannica, Inc.
VIEW MORE in these related Britannica articles: