Edaphosaurus is a genus of
prehistoric synapsid which lived around 303 to 265 million years ago, during the
late Carboniferous to early Permian periods. This genus was first known from
remains discovered in North America, in the late 19th century, and described by
American paleontologist Edward Drinker Cope. More recently other fossils
attributed to Edaphosaurus have been found in the Czech Republic and Slovakia.
The most characteristic feature of Edaphosaurus is a sail on its back similar to
that of other synapsids of the same time, such as the large apex predator
Dimetrodon. However, the sail on Edaphosaurus is different in shape and
morphology. Along with the reptile-like family Diadectidae, Edaphosaurus is one
of the earliest known large plant-eating tetrapods (land-living vertebrates).
Early descriptions, referring to its sharp teeth, suggest that the synapsid may
have fed on small invertebrates, such as mollusks, although paleontologists now
point out that Edaphosaurus also shows herbivore characteristics.
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(Click Photo to Enlarge)
Name: Edaphosaurus boanerges
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE synapsid!
Edaphosaurus 1 - Price: $65.00
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(Click Photo to Enlarge)
Name: Edaphosaurus boanerges
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE synapsid!
Edaphosaurus 2 - Price: $65.00
![]() |
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![]() |
![]() |
![]() |
![]() |
(Click Photo to Enlarge)
Name: Edaphosaurus boanerges
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a very nice RARE Palatine Jaw from a RARE synapsid!
Edaphosaurus 3 - Price: $200.00
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
(Click Photo to Enlarge)
Name: Edaphosaurus boanerges
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This a nice BIG AND THICK spine section from a RARE synapsid!
Edaphosaurus 4 - Price: $85.00