Mammal-like Reptiles

• 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

Related Information & Resources

• Prehistoric Animals - Prehistoric and Extinct Animals

Mammal-like Reptile Books

Mammal-Like Reptiles and the Origin of Mammals By T. S. Kemp Academic Pr Released: December 31st, 1982 Hardcover (363 pages) List Price: $139.00* Lowest Used Price: $49.91* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: Mammal-Like Reptiles and the Origin of Mammals Manufacturer: Academic Pr ISBN: 0124041205 EAN: 9780124041202 Details: Hardcover Number of Pages: 363 Author: T. S. Kemp Publication Date: December 31st, 1982 Release Date: December 31st, 1982 Physical Description: Weight: 1.32056894938 Pounds Click here for more information

The Ecology and Biology of Mammal-Like Reptiles Brand: Smithsonian Released: December 17th, 1986 Hardcover (352 pages) Lowest Used Price: $75.00* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: The Ecology and Biology of Mammal-Like Reptiles Manufacturer: Smithsonian Brand: Brand: Smithsonian ISBN: 0874745241 EAN: 9780874745245 Details: Hardcover Edition: 1st edition Number of Pages: 352 Publication Date: December 17th, 1986 Release Date: December 17th, 1986 Physical Description: Size: 11.5 Inches by 8.75 Inches by 1.0 Inches Weight: 1.543235834 Pounds Features: Used Book in Good Condition Click here for more information

The Mammal-like Reptile Lycaenops. By E.H. Colbert Am.Mus.N.H.Bul.89 Paperback Lowest Used Price: $11.00* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: The Mammal-like Reptile Lycaenops. Manufacturer: Am.Mus.N.H.Bul.89 Details: Paperback Edition: 1st Edition Author: E.H. Colbert Click here for more information

A MOUNTED SKELETON OF THE MAMMAL-LIKE REPTILE DICYNODON TIGRICEPS By Everett C Olson J Geol Pamphlet Lowest Used Price: $6.90* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: A MOUNTED SKELETON OF THE MAMMAL-LIKE REPTILE DICYNODON TIGRICEPS Manufacturer: J Geol Details: Product Category: Pamphlet Author: Everett C Olson Click here for more information

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 Lowest Used Price: $22.74* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: THE BOOK OF PREHISTORIC ANIMALS: WHERE THE EXTINCT REPTILES, MAMMAL-LIKE REPTILES, BIRDS, AND MAMMALS CAME FROM Manufacturer: J. B. Lippincott Company Details: Hardcover Edition: no statement of edition Author: Raymond L. (illustrated by Helene Carter) Ditmars Physical Description: Weight: 1.01 Pounds Click here for more information

Catalogue of Fish, Fish-Like Mammals and Amphibian Reptiles: Hall of Fishes, Vanderbilt Marine Museum (Classic Reprint) By Vanderbilt Marine Museum Forgotten Books Hardcover (74 pages) Lowest New Price: $20.56* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: Catalogue of Fish, Fish-Like Mammals and Amphibian Reptiles: Hall of Fishes, Vanderbilt Marine Museum (Classic Reprint) Manufacturer: Forgotten Books ISBN: 0266898424 EAN: 9780266898429 Details: Hardcover Number of Pages: 74 Author: Vanderbilt Marine Museum Physical Description: Size: 9.0 Inches by 6.0 Inches by 0.25 Inches Weight: 0.55997414548 Pounds Click here for more information

The locomotor apparatus of certain primitive and mammal-like reptiles 1922 [Leather Bound] By Alfred Sherwood Romer Generic Leather Bound (140 pages) Lowest New Price: $73.52* Usually ships within 6 to 10 days.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: The locomotor apparatus of certain primitive and mammal-like reptiles 1922 [Leather Bound] Manufacturer: Generic Details: Product Category: Leather Bound Number of Pages: 140 Author: Alfred Sherwood Romer Click here for more information

On the Origin of the Mammal-like Reptiles Volume 1907 1907 [Leather Bound] By R Broom Generic Unknown Binding (21 pages) Lowest New Price: $48.78* Usually ships within 6 to 10 days.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: On the Origin of the Mammal-like Reptiles Volume 1907 1907 [Leather Bound] Manufacturer: Generic Details: Product Category: Unknown Binding Number of Pages: 21 Author: R Broom Click here for more information

What Do You Do with a Tail Like This? By Steve Jenkins Houghton Mifflin Released: March 18th, 2008 Paperback (32 pages) Lowest New Price: $7.95* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: What Do You Do with a Tail Like This? Manufacturer: Clarion Books Brand: Houghton Mifflin ISBN: 061899713X EAN: 9780618997138 PartNumber: 9780618997138 Details: Paperback Format: Picture Book Edition: Reprint Number of Pages: 32 Authors: Steve Jenkins, Robin Page Publication Date: March 18th, 2008 Release Date: March 18th, 2008 Physical Description: Size: 9.75 Inches by 9.75 Inches by 0.12 Inches Weight: 0.35 Pounds Features: THIS Click here for more information

Eyelike Stickers: Animals By Workman Publishing Workman Publishing Company Released: November 4th, 2011 Paperback (12 pages) Lowest New Price: $6.95* In Stock.* *(As of 08:04 Pacific 3 Oct 2022 More Info) Click Here Description: Eyelike Stickers: Animals Manufacturer: Workman Publishing Company Brand: Workman Publishing Company Model: 9780761169338 ISBN: 0761169334 UPC: 783324921045 EAN: 9780761169338 PartNumber: WMP076116938 Details: Paperback Format: Sticker Book Number of Pages: 12 Author: Workman Publishing Publication Date: November 4th, 2011 Release Date: November 4th, 2011 Physical Description: Size: 10.375 Inches by 8.875 Inches by 0.125 Inches Weight: 0.36 Pounds Click here for more information

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