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 Hardcover (363 pages) List Price: $139.00* Lowest Used Price: $99.92* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 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 Click here for more information

Ecology and Biology of Mammal-Like Reptiles By Paul D. MacLean & E. Carol Roth Smithsonian Released: December 17th, 1986 Paperback (326 pages) Lowest Used Price: $35.00* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 More Info) Click Here Description: Ecology and Biology of Mammal-Like Reptiles Manufacturer: Smithsonian ISBN: 0874745195 EAN: 9780874745191 Details: Paperback Edition: First Edition Number of Pages: 326 Authors: Paul D. MacLean, Jan J. Roth, E. Carol Roth Publication Date: December 17th, 1986 Release Date: December 17th, 1986 Physical Description: Size: 11.0 Inches by 8.25 Inches by 0.75 Inches Weight: 2.11202846996 Pounds 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 List Price: $20.01* Lowest Used Price: $10.46* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 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

The mammal-like reptiles of South Africa and the origin of mammals By Robert Broom H.F. & G. Witherby Unknown Binding Lowest Used Price: $55.00* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 More Info) Click Here Description: The mammal-like reptiles of South Africa and the origin of mammals Manufacturer: H.F. & G. Witherby Details: Product Category: Unknown Binding Author: Robert Broom Click here for more information

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: $10.75* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 More Info) Click Here Description: The mammal-like reptile Lycaenops (Bulletin of the American Museum of Natural History, v. 89, article 6) Manufacturer: [American Museum of Natural History] Details: Product Category: Unknown Binding Number of Pages: 404 Author: Edwin Harris Colbert Click here for more information

The Locomotor Apparatus of Certain Primitive and Mammal-Like Reptiles [Bulletin of The American Museum of Natural History Vol. XLVI, Art. X, pp. 517-606] By Alfred Sherwood Romer The American Museum of Natural History Paperback Lowest Used Price: $30.00* In Stock.* *(As of 14:05 Pacific 8 Jun 2023 More Info) Click Here Description: The Locomotor Apparatus of Certain Primitive and Mammal-Like Reptiles [Bulletin of The American Museum of Natural History Vol. XLVI, Art. X, pp. 517-606] Manufacturer: The American Museum of Natural History Details: Paperback Author: Alfred Sherwood Romer 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 14:05 Pacific 8 Jun 2023 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

Catalogue of Fish, Fish-Like Mammals and Amphibian Reptiles: Hall of Fishes, Vanderbilt Marine Museum (Classic Reprint) By Vanderbilt Marine Museum Forgotten Books Released: August 24th, 2018 Hardcover (70 pages) List Price: $36.27* Lowest New Price: $12.57* In stock. Usually ships within 2 to 3 days.* *(As of 14:05 Pacific 8 Jun 2023 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: 1528416236 EAN: 9781528416238 Details: Hardcover Number of Pages: 70 Author: Vanderbilt Marine Museum Publication Date: August 24th, 2018 Release Date: August 24th, 2018 Physical Description: Size: 9.01573 Inches by 5.98424 Inches by 0.1531493 Inches Weight: 0.24030386558 Pounds 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 14:05 Pacific 8 Jun 2023 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 Click here for more information

Forerunners of Mammals: Radiation‚ Histology, Biology (Life of the Past) Indiana University Press Kindle Edition (610 pages) Lowest New Price: $11.99* Available for download now.* *(As of 14:05 Pacific 8 Jun 2023 More Info) Click Here Description: Forerunners of Mammals: Radiation‚ Histology, Biology (Life of the Past) Manufacturer: Indiana University Press Details: Kindle Edition Format: Kindle eBook Number of Pages: 610 Click here for more information

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