PBDB Taxon

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

Arca (Arca) santamariensis

Bivalvia - Arcida - Arcidae

Taxonomy

Arca (Arca) santamariensis was named by Reinhart (1937). Its type specimen is CIT 1381, a shell, and it is a 3D body fossil. Its type locality is USGS loc. 4475, Fugler Point, which is in a Pliocene marine horizon in California.

Sister species lacking formal opinion data

A. bellonii, A. bravoensis, A. cancellata, A. carinata, A. gurgitis, A. limatella, A. macnairyensis, A. montensis, A. nana, A. pakistanica, A. pergracilis, A. securiculata, A. tailleburgensis, A. triasina, A. halmyrus, A. montensis, A. fruthi, A. stillicidum, A. mikkula, A. waltonia, A. fracta, A. gabrielis, A. veatchi

Synonymy list

Year	Name and author
1937	Arca (Arca) santamariensis Reinhart p. 183 figs. Plate 28, figures 4, 5, 7, 8, 11
1943	Arca (Arca) santamariensis Reinhart p. 26 figs. PI. 3, figs. 7-11
1950	Arca (Arca) santamariensis Woodring and Bramlette
1983	Arca (Arca) santamariensis Moore p. A33 figs. Plate 5, figures 2, 5
2020	Arca (Arca) santamariensis Hendy

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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)

Rank	Name	Author
infraclass	Pteriomorphia	(Beurlen 1944)
—	Ostreomorphi	Ferussac 1822
—	Arcioni	Gray 1854
order	Arcida	(Stoliczka 1871)
superfamily	Arcoidea	(Lamarck 1809)
family	Arcidae	Lamarck 1809
subfamily	Arcinae	Lamarck 1809
genus	Arca
subgenus	Arca	Linnaeus 1758
species	santamariensis

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.

†Arca (Arca) santamariensis Reinhart 1937

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitef

Entire body:

yesf

Adult length:

10 to < 100f

Adult width:

10 to < 100f

Adult height:

10 to < 100f

Thickness:

intermediatef

Folds:

minorf

Ribbing:

majorf

Spines:

nonef

Internal reinforcement:

nonef

Ontogeny:

accretionf

Environment:

lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf

Locomotion:

stationaryg

Attached:

yesg

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

limitedf

Created:

2004-02-29 17:09:41

Modified:

2009-09-09 11:04:20

Source: g = genus, f = family

References: Aberhan et al. 2004, Mikkelsen and Bieler 2008

Age range: base of the Messinian to the top of the Gelasian or 7.24600 to 1.80600 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Tortonian - Piacenzian	11.62 - 2.588	USA (California)	Arca santamariensis (188305)
Messinian	7.246 - 5.333	USA (California)	Arca santamariensis (195031)
Pliocene	5.333 - 2.588	USA (California)	Arca santamariensis (type locality: 122281)
Gelasian	2.588 - 1.806	USA (California)	Arca santamariensis (189768)