PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Exogyra inornata

Bivalvia - Ostreida - Gryphaeidae

Taxonomy

Exogyra inornata was named by Packard (1922). Its type specimen is UCMP 12284 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.

Sister species lacking formal opinion data

E. acroumbonata, E. boveyensis, E. forteaui, E. levis, E. obliquata, E. pellicoi, E. plana, E. raulini, E. texana, Ostrea boussaci

Synonymy list

Year	Name and author
1922	Exogyra inornata Packard p. 420 figs. Plate 27, figure 1
1958	Exogyra inornata Anderson p. 108

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)
infraclass	Pteriomorphia	(Beurlen 1944)

Rank	Name	Author
—	Ostreomorphi	Ferussac 1822
—	Ostreioni	Ferussac 1822
—	Ostreata	Ferussac 1822
superorder	Ostreiformii	Ferussac 1822
order	Ostreida	(Fërussac 1822)
suborder	Ostreidina	(Ferussac 1822)
superfamily	Ostreoidea	(Rafinesque 1815)
family	Gryphaeidae	Vialov 1936
subfamily	Exogyrinae	Vialov 1936
genus	Exogyra	Say 1820
species	inornata

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 inornata Packard 1922

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Diagnosis

Reference	Diagnosis
E. L. Packard 1922	Shell small, rather thin, smooth, very tumid, somewhat elliptical in outline; beaks large, conspicuously twisted; lower valve of the cotype is roughly circular, irregular, margins smooth . The upper valve of the cotype is similar to that of the type. Height of the type, about 35mm.; length, about 25mm.

Measurements

No measurements are available

Composition:

low Mg calcitef

Environment:

marine, brackisho

Locomotion:

stationaryf

Attached:

yesf

Life habit:

epifaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2007-09-26 08:05:58

Modified:

2009-08-18 19:34:53

Source: f = family, o = order, c = class

References: Kiessling 2004, Aberhan et al. 2004, Steuber 2002

Age range: Late/Upper Turonian or 93.90000 to 89.80000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Turonian	93.9 - 89.8	USA (California)	Exogyra inornata (type locality: 207820)