Dimetrodon
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- The University of Chicago Forelimb Shape, Disparity
- The Postcranial Skeleton of the Giant Permian Pelycosaur Cotylorhynchus Romeri
- Dimetrodon Fact Sheet
- The Oldest Specialized Tetrapod Herbivore: a New Eupelycosaur from the Permian of New Mexico, USA
- The Skull of Sphenacodon Ferocior, and Comparisons with Other Sphenacodontines (Reptilia: Pelycosauria)
- Synapsids and Evolution of Mammals
- Vito Bertucci Megalodon Jaws at CMM
- The Skull of Tetraceratops Insignis (Synapsida, Sphenacodontia)
- Dimetrodon (Amniota: Synapsida: Sphenacodontidae) from the Lower Permina Abo Formation, Socorro County, New Mexico Spencer G
- 1 the Palatal Dentition of Tetrapods and Its Functional Significance 1 2 3
- DIMETRODON (Di-MEH-Tro-Don) “Two Measures of Teeth”
- On the Affinities of Tetraceratops Insignis, an Early Permian Synapsid
- The Cranial Anatomy and Relationships of Secodontosaurus, an Unusual Mammal-Like Reptile (Synapsida: Sphenacodontidae) from the Early Permian of Texas
- Smithsonian Assignment I: Osteology and Life on Land Before the Dinosaurs
- Early Permian Vertebrates from the Cutler Formation of the Placerville Area Colorado
- The Dimetrodon Dilemma: Reassessing Posture in Sphenacodontians and Related Non-Mammalian Synapsids
- New Information on the Cranial and Postcranial Anatomy of the Early Synapsid Ianthodon Schultzei (Sphenacomorpha: Sphenacodontia), and Its Evolutionary Significance
- A Faunivorous Early Sphenacodontian Synapsid with a Diastema