| Dimetrodon limbatus | Dimetrodon natalis |
Dimetrodon - ancestor of the mammals belonged to the family called Pelycosaurs, which had both mammal and reptile characteristics. Dimetrodon preceded the earliest dinosaurs by more than 40 million years but physically it looked a lot like one. It is often referred to as mammal-like reptile, based on characteristics of the skull and dentition. Dimetrodon was a dominant carnivore, the largest one of the Permian period. It was a predacious reptile that was on the top of the food chain during the early Permian.
This pelycosaur possessed a spectacular sail on its back, supported by long, bony spines, each of which grew out of a separate spinal vertebra. The sail was probably an early experiment in controlling body temperature. It is believed that the sail absorbed the heat of the sun and warmed the blood and body. It warmed up early after sunrise and cooled off more efficiently during the heat of the day. It may have also been used for mating and dominance rituals and making it look much larger than it was to predators. Dimetrodon had a large skull with two types of teeth (sharp canines and shearing teeth). It was probably quite slow because it walked on four side-sprawling legs.
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Dimetrodon natalis is a small pelycosaur. Originally Cope (1878) described the species as Clepysdrops natalis. Dimetrodon natalis had a maximum weight of about 60 pounds although most specimens come from individuals that weighed less than 30 pounds. Dimetrodon natalis is a VERY RARE SPECIES found in only two current localities in Archer County. Texas is known for over ten species of Dimetrodon. Generally the species is determined by the locality and comparison to literature. The material being offered here comes from 4 Nocona formation localities... 2 Arroyo formations.. and 1 Archer County formation. Most specimens have been brushed with Butvar B72 Disolved in Acetone to preserve the bone.
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE Dimetrodon.
Dimetrodon natalis 2 - Price: $75.00
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE Dimetrodon.
Dimetrodon natalis 3 - Price: $85.00
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE Dimetrodon.
Dimetrodon natalis 4 - Price: $95.00
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice tail vertebrae from a RARE Dimetrodon.
Dimetrodon natalis 5 - Price: $65.00
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice big thoracic vertebrae from a RARE Dimetrodon.
Dimetrodon natalis 6 - Price: $200.00
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(Click Photo to Enlarge)
Name: Dimetrodon natalis
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: This is a nice claw from a RARE Dimetrodon.
Dimetrodon natalis 7 - Price: $175.00
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(Click Photo to Enlarge)
Name: Dimetrodon limbatus
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: VERY NICE Vertebrae that measures approx. 1.35" x 1.25" x 2.35" in size. Very rare too!
Dimetrodon Fossil 2 - Price: $475.00
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(Click Photo to Enlarge)
Name: Dimetrodon limbatus
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: Very nice Vertebrae in-situ. The vertebrae measures approx. 1" x 1" x 1" in size. Very rare too!
Dimetrodon Fossil 3 - Price: $400.00
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(Click Photo to Enlarge)
Name: Dimetrodon limbatus
Geologic Age: Lower Permian
Stratigraphic detail: Nocona Formation, Wichita Group
Location: Archer County, Texas
Description: Very rare CLAW from a Dimetrodon.
Dimetrodon Fossil 4 - Price: $175.00