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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:
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By Paul D. MacLean & E. Carol Roth
Smithsonian
Released: December 17th, 1986
Paperback (326 pages)
 | Lowest Used Price: $73.43*
In Stock.*
*(As of 15:34 Pacific 31 Jul 2021 More Info)
Click Here | Description:
Ecology and Biology of Mammal-Like Reptiles- Manufacturer: Smithsonian
- ISBN: 0874745195
- EAN: 9780874745191
Details:- Paperback
- Edition: 1st 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 T. S. Kemp
Academic Pr
Released: January 1st, 1983
Hardcover (363 pages)
 | List Price: $139.00*
Lowest Used Price: $66.41*
In Stock.*
*(As of 15:34 Pacific 31 Jul 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 |
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Indiana University Press
Released: November 18th, 2011
Hardcover (352 pages)
 | Lowest Used Price: $199.99*
In stock. Usually ships within 2 to 3 days.*
*(As of 15:34 Pacific 31 Jul 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 |
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By Bonnie Worth
Random House Books for Young Readers
Released: August 25th, 2015
Multicolor Hardcover (48 pages)
 | Lowest New Price: $9.99*
In Stock.*
*(As of 15:34 Pacific 31 Jul 2021 More Info)
Click Here | Description:
Oh, the Things They Invented!: All About Great Inventors (Cat in the Hat's Learning Library)- Manufacturer: Random House Books for Young Readers
- Brand: Random House Books for Young Readers
- ISBNs: 9780449814970, 0449814971
- EAN: 9780449814970
- PartNumber: illustrations
Details:- Hardcover
- Format: Picture Book
- Edition: Illustrated
- Number of Pages: 48
- Author: Bonnie Worth
- Publication Date: August 25th, 2015
- Release Date: August 25th, 2015
Physical Description:- Size: 9.31 Inches by 6.69 Inches by 0.36 Inches
- Weight: 0.52470018356 Pounds
- Color: Multicolor
Click here for more information |
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By John Woodward
DK Children
Released: September 1st, 2020
Multicolor Hardcover (32 pages)
 | List Price: $19.99*
Lowest New Price: $14.29*
In Stock.*
*(As of 15:34 Pacific 31 Jul 2021 More Info)
Click Here | Description:
Life Through Time: The 700-Million-Year Story of Life on Earth- Manufacturer: DK Children
- Brand: DK Children
- ISBN: 0744020174
- EAN: 9780744020175
Details:- Hardcover
- Format: Illustrated
- Edition: Illustrated
- Number of Pages: 32
- Author: John Woodward
- Publication Date: September 1st, 2020
- Release Date: September 1st, 2020
Physical Description:- Size: 14.06 Inches by 10.75 Inches by 0.37 Inches
- Weight: 1.35 Pounds
- Color: Multicolor
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