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: January 1st, 1983 Hardcover (363 pages) List Price: $139.00* Lowest Used Price: $34.00* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 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: January 1st, 1983 Release Date: January 1st, 1983 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 (326 pages) Lowest Used Price: $82.50* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 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: First Edition Number of Pages: 326 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 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: $20.00* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 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

Forerunners of Mammals: Radiation • Histology • Biology (Life of the Past) Indiana University Press Released: November 18th, 2011 Hardcover (352 pages) Lowest New Price: $60.00* Temporarily out of stock. Order now and we'll deliver when available. We'll e-mail you with an estimated delivery date as soon as we have more information. Your account will only be charged when we ship the item.* *(As of 10:43 Pacific 16 Apr 2021 More Info) Click Here Description: Forerunners of Mammals: Radiation • Histology • Biology (Life of the Past) Manufacturer: Indiana University Press Brand: Indiana University Press ISBN: 0253356970 EAN: 9780253356970 Details: Hardcover Edition: Illustrated Number of Pages: 352 Publication Date: November 18th, 2011 Release Date: November 18th, 2011 Physical Description: Size: 10.0 Inches by 7.25 Inches by 1.0 Inches Weight: 2.40083403318 Pounds 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 10:43 Pacific 16 Apr 2021 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

On the Origin of the Mammal-like Reptiles Volume 1907 1907 [Leather Bound] By R Broom Generic Unknown Binding Lowest New Price: $48.98* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 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 Author: R Broom Click here for more information

Kaufman Field Guide to Nature of the Midwest (Kaufman Field Guides) By Kenn Kaufman & Jeff Sayre Houghton Mifflin Released: May 5th, 2015 Paperback (416 pages) List Price: $20.00* Lowest New Price: $16.49* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 More Info) Click Here Description: Kaufman Field Guide to Nature of the Midwest (Kaufman Field Guides) Manufacturer: Houghton Mifflin Brand: Houghton Mifflin ISBN: 0618456945 EAN: 9780618456949 PartNumber: HM0618456949 Details: Paperback Edition: Illustrated Number of Pages: 416 Authors: Kenn Kaufman, Kimberly Kaufman, Jeff Sayre Publication Date: May 5th, 2015 Release Date: May 5th, 2015 Physical Description: Size: 7.5 Inches by 4.6 Inches by 1.0 Inches Weight: 1.1 Pounds Click here for more information

Carson Dellosa | Animals Flash Cards | Animal Facts for Kids, 54ct Brighter Child Released: May 16th, 2019 Cards (54 pages) Lowest New Price: $2.99* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 More Info) Click Here Description: Carson Dellosa | Animals Flash Cards | Animal Facts for Kids, 54ct Manufacturer: Brighter Child Brand: Brighter Child ISBN: 1483852822 UPC: 044222274405 EANs: 9781483852829, 0044222274405 PartNumber: 734090 Details: Product Category: Cards Number of Pages: 54 Publication Date: May 16th, 2019 Release Date: May 16th, 2019 Physical Description: Size: 6.25 Inches by 3.25 Inches by 0.75 Inches Weight: 0.45 Pounds Click here for more information

Animals: A Visual Encyclopedia (Second Edition) By DK DK Children Released: March 19th, 2012 Multicolor Paperback (304 pages) List Price: $19.99* Lowest New Price: $17.64* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 More Info) Click Here Description: Animals: A Visual Encyclopedia (Second Edition) Manufacturer: DK Children Brand: DK Children ISBN: 0756691702 UPC: 690472091707 EANs: 9780756691707, 0690472091707 PartNumber: 9780756691707 Details: Paperback Edition: 2 Number of Pages: 304 Author: DK Publication Date: March 19th, 2012 Release Date: March 19th, 2012 Physical Description: Size: 10.94 Inches by 8.63 Inches by 0.89 Inches Weight: 2.66318412496 Pounds Color: Multicolor Features: DK CHILDREN 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: April 25th, 2018 Hardcover (72 pages) Lowest New Price: $20.56* In Stock.* *(As of 10:43 Pacific 16 Apr 2021 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: 72 Author: Vanderbilt Marine Museum Publication Date: April 25th, 2018 Release Date: April 25th, 2018 Physical Description: Size: 9.0 Inches by 6.0 Inches by 0.25 Inches Weight: 0.55997414548 Pounds Click here for more information

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