Acleistorhinus
Extinct genus of reptile
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Acleistorhinus is an extinct genus of acleistorhinid stem-reptile known from the Early Permian (middle Kungurian stage) Hennessey Formation of Oklahoma. The genus contains a single species, Acleistorhinus pteroticus.
| Acleistorhinus Temporal range: | |
|---|---|
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| Reconstructed skull | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | †Ankyramorpha |
| Family: | †Acleistorhinidae |
| Genus: | †Acleistorhinus Daly, 1969 |
| Type species | |
| †Acleistorhinus pteroticus Daly, 1969 | |
Discovery and naming
Acleistorhinus was described by Eleanor Daly in 1969, based on fossils found in the Early Permian outcrops of the Hennessey Formation in South Grandfield of southwestern Oklahoma.[1]
The name Acleistorhinus combines Greek rhin (ῥῑ́ν), meaning "nose," and akleistos, Greek for "unclosed."[citation needed]
Classification
The placement of Acleistorhinus in relation to other acleistorhinids within Ankyramorpha is shown in the cladogram below:[2]
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