Facts about Mammal-like Reptiles, an extinct prehistoric animal

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Dinosaur Jungle   >   Other Prehistoric Animals   >   Mammal-like Reptiles

Mammal-like Reptiles



Scientific Classification
  Kingdom Animalia
  Phylum Chordata
  Class Synapsida
Amniotes (tetrapod vertebrate animals with a terrestrially adapted eggs) are traditionally divided into three categories:
  • Anapsids - Animals with a box-like skull without openings. This group includes the early reptiles of the Carboniferous and Permian periods (and to a limited extent the Triassic period), and includes animals such Scutosaurus. This group may also include turtles, however many scientists believe that turtles are actually descended from Diapsid reptiles which lost their skull openings.

  • Diapsids - Reptiles with two temporal holes (fenestra) in their skulls, and their descendents. This group includes archosaurs (including crocodilians, dinosaur species and birds), as well as lepidosaurs such as lizards, snakes, and sphenodonts - even though many of these groups have lost one hole (lizards), both holes (snakes), or have heavily modified skulls (birds).

  • Synapsids (also sometimes known as "Theropsids") - Animals with a single temporal opening (fenestra) in theirn skull behind each eye. This group includes many reptiles, known as "mammal-like reptiles", as well as mammals. Some examples of mammal-like reptiles include Cynodonts, Dicynodonts, Gorgonopsians (including Lystrosaurs), Dinocephalians like Estemmenosuchus, Moschops and Struthiocephalus, as well as Pelycosaurs like Dimetrodon, Edaphosaurus, Sphenacodon, and Varanosaurus.

Mammal-like Reptiles Timeline:



Mammal-like Reptiles were one of the main groups of amniotes, including the ancestors of all modern mammals, and lived between 324 and 100 million years ago

Mammal-like Reptiles were one of the main groups of amniotes, including the ancestors of all modern mammals, and lived between 324 and 100 million years ago


Related Information & Resources


See Also

Mammal-like Reptile Books


Here are some books from Amazon.com:

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Ecology and Biology of Mammal-Like Reptiles
By Paul D. MacLean & E. Carol Roth

Smithsonian
Paperback (326 pages)

Ecology and Biology of Mammal-Like Reptiles
List Price: $22.50*
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THE BOOK OF PREHISTORIC ANIMALS: WHERE THE EXTINCT REPTILES, MAMMAL-LIKE REPTILES, BIRDS, AND MAMMALS CAME FROM
By Raymond L. (illustrated by Helene Carter) Ditmars

J. B. Lippincott Company
Hardcover

THE BOOK OF PREHISTORIC ANIMALS: WHERE THE EXTINCT REPTILES, MAMMAL-LIKE REPTILES, BIRDS, AND MAMMALS CAME FROM
Lowest Used Price: $20.00*
*(As of 06:29 Pacific 10 Dec 2019 More Info)


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On the Origin of the Mammal-like Reptiles Volume 1907 1907 [LEATHER BOUND]
By R Broom

Facsimile Publisher
Unknown Binding (21 pages)

On the Origin of the Mammal-like Reptiles Volume 1907 1907 [LEATHER BOUND]
Lowest New Price: $37.66*
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Product Description:
Leather Binding on Spine and Corners with Golden Leaf Printing on round Spine (extra customization on request like complete leather, Golden Screen printing in Front, Color Leather, Colored book etc.) Reprinted in 2017 with the help of original edition published long back [1907]. This book is printed in black & white, sewing binding for longer life, Printed on high quality Paper, re-sized as per Current standards, professionally processed without changing its contents. As these are old books, we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. We expect that you will understand our compulsion in these books. We found this book important for the readers who want to know more about our old treasure so we brought it back to the shelves. Hope you will like it and give your comments and suggestions. Lang: - English, Vol: - Volume 1907, Pages 21. EXTRA 10 DAYS APART FROM THE NORMAL SHIPPING PERIOD WILL BE REQUIRED FOR LEATHER BOUND BOOKS. COMPLETE LEATHER WILL COST YOU EXTRA US$ 25 APART FROM THE LEATHER BOUND BOOKS.
What Do You Do with a Tail Like This?
By Steve Jenkins

HMH Books for Young Readers
Released: 2008-03-18
Paperback (32 pages)

What Do You Do with a Tail Like This?
List Price: $7.95*
Lowest New Price: $5.00*
Lowest Used Price: $1.36*
Usually ships in 24 hours*
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  • 9780618997138
Product Description:

A nose for digging? Ears for seeing? Eyes that squirt blood? Explore the many amazing things animals can do with their ears, eyes, mouths, noses, feet, and tails in this interactive guessing book, beautifully illustrated in cut-paper collage, which was awarded a Caldecott Honor.

This title has been selected as a Common Core Text Exemplar (Grades K-1, Read Aloud Informational Text).

World of Eric Carle, Hear Bear Roar 30 Animal Sound Book - PI Kids (The World of Eric Carle: Play-a-sound)
By Editors of Phoenix International Publications

Phoenix International Publications, Inc.
Hardcover (24 pages)

World of Eric Carle, Hear Bear Roar 30 Animal Sound Book - PI Kids (The World of Eric Carle: Play-a-sound)
List Price: $16.98*
Lowest New Price: $11.65*
Lowest Used Price: $47.07*
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Product Description:

Your little animal lovers will love hearing the amazing art of Eric Carle come alive! This sound book includes 30 animal themed sound buttons to press and captivating creatures on each page making Hear Bear Roar an amazing and interactive adventure!

This sound book is special because:

  • Hands on interaction engages young readers
  • Connecting words with pictures builds vocabulary
  • Multisensory reading experiences stimulate the imaginations of young readers
  • Features the amazing art of Eric Carle, writer and illustrator of The Very Hungry Caterpillar
  • Includes an amazing amount of animals: grizzly bear, deer, fox, wolf, dolphin, lobster, wale, blue jay, bee, owl, seagull, bat, spider, woodpecker, monkey, leopard, goat, eagle, polar bear, penguin, walrus, seal, buffalo, horse, elephant, snake, lion, prairie dog, mouse, and a brown bear
Forerunners of Mammals: Radiation • Histology • Biology (Life of the Past)
Indiana University Press
Released: 2011-11-18
Hardcover (352 pages)

Forerunners of Mammals: Radiation • Histology • Biology (Life of the Past)
List Price: $60.00*
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Product Description:

About 320 million years ago a group of reptiles known as the synapsids emerged and forever changed Earth’s ecological landscapes. This book discusses the origin and radiation of the synapsids from their sail-backed pelycosaur ancestor to their diverse descendants, the therapsids or mammal-like reptiles, that eventually gave rise to mammals. It further showcases the remarkable evolutionary history of the synapsids in the Karoo Basin of South Africa and the environments that existed at the time. By highlighting studies of synapsid bone microstructure, it offers a unique perspective of how such studies are utilized to reconstruct various aspects of biology, such as growth dynamics, biomechanical function, and the attainment of sexual and skeletal maturity. A series of chapters outline the radiation and phylogenetic relationships of major synapsid lineages and provide direct insight into how bone histological analyses have led to an appreciation of these enigmatic animals as once-living creatures. The penultimate chapter examines the early radiation of mammals from their nonmammalian cynodont ancestors, and the book concludes by engaging the intriguing question of when and where endothermy evolved among the therapsids.

Mammal-Like Reptiles and the Origin of Mammals
By T. S. Kemp

Academic Pr
Hardcover (363 pages)
List Price: $139.00*
Lowest Used Price: $26.44*
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The mammal-like reptile Lycaenops (Bulletin of the American Museum of Natural History, v. 89, article 6)
By Edwin Harris Colbert

[American Museum of Natural History]
Unknown Binding (404 pages)
Lowest Used Price: $40.00*
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A MOUNTED SKELETON OF THE MAMMAL-LIKE REPTILE DICYNODON TIGRICEPS
By Everett C Olson

J Geol
Pamphlet
Lowest Used Price: $6.90*
*(As of 06:29 Pacific 10 Dec 2019 More Info)


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The mammal-like reptiles of South Africa and the origin of mammals
By Robert Broom

H.F. & G. Witherby
Unknown Binding (376 pages)
 


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