PBDB Taxon

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

Anadara (Anadara) dichotoma

Bivalvia - Arcida - Arcidae

Taxonomy

Arca dichotoma was named by Deshayes (1863) [DISTRIBUTION: Pliocene; Indonesia.]. It is extant.

It was recombined as Anadara (Anadara) dichotoma by Skwarko (1994) and Tiwari and Kachhara (2003).

Sister species lacking formal opinion data

A. burnesi, A. chilensis, A. clathrata, A. dameyi, A. delandensis, A. hypomela, A. improcera, A. larkini, A. natalensis, A. philippiana, A. rectangularis, A. setoensis, A. tarponensis, A. turoniensis, A. watanabei, A. microtera, A. kogachiensis, A. chavezi, A. guajirensis, A. suzukii, A. tectumcolumbae, Arca montensis

Synonymy list

Year	Name and author
1863	Arca dichotoma Deshayes p. 22 figs. pl. 3, figs. 18, 19
1994	Anadara (Anadara) dichotoma Skwarko p. d3
2003	Anadara (Anadara) dichotoma Tiwari and Kachhara p. 85

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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	Anadarinae	Reinhart 1935
genus	Anadara	Gray 1847
subgenus	Anadara	Gray 1847
species	dichotoma	(Deshayes 1863)

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.

Anadara (Anadara) dichotoma Deshayes 1863

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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:

facultatively mobileg

Attached:

yesf

Life habit:

semi-infaunalg

Diet:

suspension feederg

Vision:

limitedf

Created:

2009-09-09 13:20:13

Modified:

2009-09-09 15:20:13

Source: g = genus, f = family

References: Mikkelsen and Bieler 2008, Sanchez Roig 1926

Age range: base of the Early/Lower Miocene to the top of the Late/Upper Pleistocene or 23.03000 to 0.01170 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Miocene	23.03 - 15.97	India	Anadara dichotoma (72084 78641)
Late/Upper Miocene	11.608 - 5.333	Philippines (Panay)	Anadara dichotoma (41649)
Late/Upper Pleistocene	0.129 - 0.0117	Djibouti	Arca dichotoma (96787)