Ianthasaurus
| Ianthasaurus Temporal range: Late Carboniferous,
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Family: | †Edaphosauridae |
| Genus: | †Ianthasaurus Reisz and Berman, 1986 |
| Type species | |
| †Ianthasaurus hardestii Reisz & Berman, 1986
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Ianthasaurus is an extinct genus of small edaphosaurids from the Late Carboniferous.
Description
It is one of the smallest edaphosaurids known, with an 8 cm (3.1 in) skull and a total body length of 75 cm (30 in).[1] Ianthasaurus lacks many of the spectacular specializations seen in Edaphosaurus. For example, the marginal dentition of Ianthasaurus is similar to that of insectivorous reptiles, with slender conical teeth which are slightly recurved at the tips, and there is a slight development of a caniniform region. The palatal and mandibular dentition is unspecialized, and there are no batteries of teeth for crushing of plant materials. Also unlike Edaphosaurus, Ianthasaurus was lightly built and was probably quite agile. The skull was similar to that of Haptodus, a sphenacodontid, though they were distantly related.
Unlike later edaphosaurids, Ianthasaurus is suggested to have been a carnivore/insectivore.[2]
Discovery
It was named by Robert R. Reisz and David Berman in 1986.[3][4] It was discovered by them in the Upper Pennsylvanian Rock Lake Shale near Garnett, Kansas.[3]
See also
References
- ^ T.S. Kemp (2005) The origin and evolution of mammals p.24.
- ^ Mann, Arjan; Henrici, Amy C.; Sues, Hans-Dieter; Pierce, Stephanie E. (2023). "A new Carboniferous edaphosaurid and the origin of herbivory in mammal forerunners". Scientific Reports. 13 (1) 4459. Bibcode:2023NatSR..13.4459M. doi:10.1038/s41598-023-30626-8. PMC 10076360. PMID 37019927.
- ^ a b Robert R. Reisz and David S. Berman (1986). "Ianthasaurus hardestii n. sp., a primitive edaphosaur (Reptilia, Pelycosauria) from the Upper Pennsylvanian Rock Lake Shale near Garnett, Kansas". Canadian Journal of Earth Sciences. 23 (1): 77–91. Bibcode:1986CaJES..23...77R. doi:10.1139/e86-008.
- ^ "Ianthasaurus". Paleobiology Database. Archived from the original on October 2, 2013. Retrieved December 11, 2007.
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