Shokawa is an extinct genus of choristoderan diapsid reptile, known from the Lower Cretaceous of Japan. It is only known from one species, Shokawa ikoi. The only known remains are a postcranial specimen lacking the skull, discovered at the KO2 locality in sediments belonging to the Okurodani Formation near the village of Shokawa in Gifu Prefecture. Shokawa possessed a long neck with at least 16 cervical vertebrae, and closely resembles and is closely related to the smaller choristoderan, Hyphalosaurus.[1][2] The generic name refers to the village near where it was found, while the specific name honors the collector of the first specimen, one Mr. Ikoi Shibata.
Shokawa Temporal range: Early Cretaceous,
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Artist's reconstruction | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | †Choristodera |
Family: | †Hyphalosauridae |
Genus: | †Shokawa Evans & Manabe, 1998 |
Type species | |
†Shokawa ikoi Evans & Manabe, 1998
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Phylogeny from the analysis of Dong and colleagues (2020):[3]
Choristodera |
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