PBDB Taxon

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

Protocardia placerensis

Bivalvia - Cardiida - Cardiidae

Taxonomy

Cardium (Protocardium) placerensis was named by Gabb (1864). It is a 3D body fossil. Its type locality is Texas Flat, which is in a Campanian marginal marine sandstone in the Chico Formation of California.

It was recombined as Protocardia placerensis by Stewart (1930).

Sister species lacking formal opinion data

P. africana, P. barneyi, P. beiha, P. besairiei, P. bipi, P. contusa, P. hillanum, P. lycetti, P. moshuiwanensis, P. olea, P. oxynoti, P. parahillana, P. pertenuis, P. phillipiana, P. rahmuensis, P. regulare, P. schucherti, P. shehuensis, P. spillmani, P. subhillanum, P. texana, P. tosensis, P. amanoi, P. goradongarensis, P. lycetti, P. peraltaensis, P. phillipiana

Synonymy list

Year	Name and author
1864	Cardium (Protocardium) placerensis Gabb p. 173 figs. PL 24, Fig. 156
1930	Protocardia placerensis Stewart pp. 272 - 273 figs. Plate 3, fig. 9

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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	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822

Rank	Name	Author
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Cardiata	Ferussac 1822
superorder	Cardiiformii	Ferussac 1822
order	Cardiida	Ferussac 1822
suborder	Cardiidina	Ferussac 1822
—	Cardioidei	Ferussac 1822
superfamily	Cardioidea	(Lamarck 1809)
family	Cardiidae	Lamarck 1809
subfamily	Protocardiinae	Reuss 1846
genus	Protocardia	(Beyrich 1845)
species	placerensis	()

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.

†Protocardia placerensis Gabb 1864

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

facultatively mobilef

Life habit:

infaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2009-07-04 09:31:14

Modified:

2009-08-17 22:21:59

Source: f = family, c = class

References: Todd 2001, Aberhan et al. 2004

Age range: Middle Campanian or 83.60000 to 72.20000 Ma

Collections (3 total)

Time interval	Ma	Country or state	Original ID and collection number
Campanian	83.6 - 72.2	USA (California)	Cardium placerensis (158389)
Late/Upper Campanian	83.6 - 72.2	USA (California)	Protocardia placerensis (185168)
Middle Campanian	83.6 - 72.2	USA (California)	Cardium placerensis (72056)