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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.
Brand: Smithsonian
Released: December 17th, 1986
Hardcover (352 pages)
 | Lowest Used Price: $65.00*
In Stock*
*(As of 00:45 Pacific 23 Sep 2023 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: 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 |
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By Steve Jenkins
Houghton Mifflin
Released: March 18th, 2008
Paperback (32 pages)
 | Lowest New Price: $7.95*
In Stock*
*(As of 00:45 Pacific 23 Sep 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 |
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Brighter Child
Released: May 16th, 2019
Multi Cards (54 pages)
 | Lowest New Price: $2.99*
In Stock*
*(As of 00:45 Pacific 23 Sep 2023 More Info)
Click Here | Description:
Carson Dellosa Animal Flash Cards, Animal Flash Cards for Toddlers 2-4 Years, Zoo Animals, Sea Animals, Insects, Reptiles, and Other Mammals, Preschool and Kindergarten Flash Cards- Manufacturer: Brighter Child
- Brand: Brighter Child
- Model: CD-734090
- ISBN: 1483852822
- UPC: 044222274405
- EAN: 9781483852829
- PartNumber: CD-734090
Details:- Product Category: Cards
- Number of Pages: 54
- Publication Date: May 16th, 2019
- Release Date: May 16th, 2019
Physical Description:- Size: 0.95 Inches by 5.2 Inches by 3.4 Inches
- Weight: 0.440924524 pounds
- Color: Multi
Features:- Help children practice and master important skills with a hands-on, interactive format
- Designed to teach curious young learners facts about a variety of animals
- Set features full-color photographs of each animal
- These durable cards are perfect for learning at school, at home, or on the go
Click here for more information |
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