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Shikamaia akasakaensis

Bivalvia - Myalinida - Alatoconchidae

Taxonomy
Shikamaia akasakaensis was named by Ozaki (1968). It is a 3D body fossil. Its type locality is Kasumi Quarry, Kinshozan, Akasaka, Gifu Prefecture, which is in a Roadian marine lime mudstone in the Akasaka Formation of Japan. It is the type species of Shikamaia.

Synonymy list
YearName and author
1968Shikamaia akasakaensis Ozaki p. 28 figs. 7-9; text-figs 1-3
2017Shikamaia akasakaensis Asato et al. p. 366 figs. 3-7, 8A. 9A, 10

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
OstreomorphiFerussac 1822
OstreioniFerussac 1822
MyalinataPaul 1939
orderMyalinidaPaul 1939
superfamilyAlatoconchoideaTermier et al. 1974
familyAlatoconchidae
subfamilyAlatoconchinae
genusShikamaia
speciesakasakaensis

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.

Shikamaia akasakaensis Ozaki 1968
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Composition 2: low Mg calcitef
Environment: marinef
Locomotion: stationaryf
Life habit: semi-infaunalf
Diet: suspension feedersubc
Vision: blindc
Created: 2007-10-05 05:45:11
Modified: 2025-05-16 23:33:50
Source: f = family, subc = subclass, c = class
References: Kiessling 2004, Aberhan et al. 2004, Eaton 1871

Age range: Roadian or 274.40000 to 266.90000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Roadian274.4 - 266.9Japan Shikamaia akasakaensis (type locality: 116063 189291 189292)