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Exogyra californica

Bivalvia - Ostreida - Gryphaeidae

Taxonomy
Exogyra californica was named by Packard (1922). Its type specimen is UCMP 12320 and is a 3D body fossil. Its type locality is UCMP loc. 2143, Santa Ana Mountains, which is in a Turonian marine mudstone in the Ladd Formation of California.

Synonymy list
YearName and author
1922Exogyra californica Packard p. 421 figs. Plate 27, figure 5
1958Exogyra californica Anderson p. 108

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderOstreida(Fërussac 1822)
suborderOstreidina(Ferussac 1822)
superfamilyOstreoidea(Rafinesque 1815)
familyGryphaeidaeVialov 1936
subfamilyExogyrinaeVialov 1936
genusExogyraSay 1820
speciescalifornica

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.

†Exogyra californica Packard 1922
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Diagnosis
ReferenceDiagnosis
E. L. Packard 1922Shell small, much higher than long; irregular in outline. Umbones prominent with an umbonal ridge extending to the base. Surface marked by crude radiating ribs .