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Mammal-like Reptiles
Scientific Classification |
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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
Related Information & Resources
See Also
Mammal-like Reptile Books Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
By Paul D. MacLean & E. Carol Roth
Smithsonian Released: December 17th, 1986 Paperback (326 pages)
| List Price: $22.50* Lowest Used Price: $18.88* In Stock* *(As of 21:33 Pacific 5 Oct 2024 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 |
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By Steve Jenkins
Clarion Released: March 18th, 2008 Paperback (32 pages)
| List Price: $9.99* Lowest New Price: $7.95* In Stock* *(As of 21:33 Pacific 5 Oct 2024 More Info)
Click Here | Description: What Do You Do with a Tail Like This?- Manufacturer: Clarion Books
- Brand: Clarion
- 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: 2.314853751 pounds
Click here for more information |
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By Elsa Panciroli
Bloomsbury Sigma Released: September 7th, 2021 Hardcover (320 pages)
| List Price: $28.00* Lowest New Price: $11.96* In Stock* *(As of 21:33 Pacific 5 Oct 2024 More Info)
Click Here | Description: Beasts Before Us: The Untold Story of Mammal Origins and Evolution- Manufacturer: Bloomsbury Sigma
- ISBN: 1472983823
- EAN: 9781472983824
Details:- Hardcover
- Number of Pages: 320
- Author: Elsa Panciroli
- Publication Date: September 7th, 2021
- Release Date: September 7th, 2021
Physical Description:- Size: 9.5 inches by 6.3200661 inches by 1.2200763 inches
- Weight: 2.314853751 pounds
Click here for more information |
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