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Shokawa ikoi

Reptilia -

Taxonomy
Shokawa ikoi was named by Evans and Manabe (1999). Its type specimen is IBEF VP 3, a set of postcrania (a postcranial skeleton without a skull), and it is a 3D body fossil. Its type locality is KO2 locality, Shokawa Village, Kobudani Valley, which is in a Berriasian fine channel fill sandstone/mudstone in the Okurodani Formation of Japan.

Synonymy list
YearName and author
1999Shokawa ikoi Evans and Manabe pp. 103-109 figs. 1-7
2008Shokawa ikoi Gao and Ksepka p. 749

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
RankNameAuthor
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Choristodera()
genusShokawa
speciesikoi

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
S. E. Evans and M. Manabe 1999A small choristoderan reptile characterised by the following combination of features: at least 16 cervical vertebrae, of which most or all bear small bicapitate ribs; cylindrical vertebral centra persistently separated from the neural arches except in the neck; caudal vertebrae with deep descending ventral flanges; anterior caudals with tall slender neural spines; interclavicle rhomboid with clavicles meeting at a strong angle in the ventral midline; strong quadrangular coracoids and reduced scapular blades; humerus, forearm and hand relatively short and broad; ilium with narrow vertical blade bearing strong vertical striations; ribs, limb bones and gastralia pachyostotic