Temporal range: Early Cretaceous, Berriasian
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

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. 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.

Phylogeny from the analysis of Dong and colleagues (2020):


Cteniogenys sp.

Heishanosaurus pygmaeus

Coeruleodraco jurassicus


Ikechosaurus pijiagouensis

Ikechosaurus sunailinae

Tchoiria namsari

Tchoiria klauseni


C. gigas

C. albertensis


S. lemoinei

S. dakotensis


Monjurosuchus splendens


P. proseilus

P. proseilus


L. inexpectatus

Lazarussuchus sp.

L. dvoraki

Khurendukhosaurus orlovi

Hyphalosaurus sp.

Hyphalosaurus lingyuanensis

Shokawa ikoi

This page was last updated at 2024-04-17 15:49 UTC. Update now. View original page.

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