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Trisidos semitorta

Bivalvia - Arcida - Arcidae

Taxonomy
Arca semitorta was named by Lamarck (1819) [DISTRIBUTION: Early Miocene-Recent; Indo-Pacific.]. It is extant.

It was recombined as Trisidos semitorta by Mukerjee (1939), Skwarko (1994), Lamprell and Healy (1998), Tiwari (2001).

Sister species lacking formal opinion data
T. kiyonoi, T. protortuosum, T. prototortuosum, T. schafarziki, T. tortuosa

Synonymy list
YearName and author
1819Arca semitorta Lamarck
1928Arca semitorta Vredenburg p. 417
1939Trisidos semitorta Mukerjee p. 24
1994Trisidos semitorta Skwarko p. c21
1998Trisidos semitorta Lamprell and Healy p. 52
2001Trisidos semitorta Tiwari p. 153

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassPteriomorphia(Beurlen 1944)
—OstreomorphiFerussac 1822
—ArcioniGray 1854
orderArcida(Stoliczka 1871)
superfamilyArcoidea(Lamarck 1809)
familyArcidaeLamarck 1809
subfamilyArcinaeLamarck 1809
genusTrisidosRšding 1798
speciessemitorta(Lamarck 1819)

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.

Trisidos semitorta Lamarck 1819
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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: stationarysubf
Attached: yessubf
Life habit: epifaunalsubf
Diet: suspension feedersubf
Vision: limitedf
Created: 2009-08-18 18:09:02
Modified: 2009-08-18 20:09:02
Source: subf = subfamily, f = family
References: Mikkelsen and Bieler 2008, Hendy et al. 2009

Age range: base of the Early/Lower Oligocene to the top of the Late/Upper Pliocene or 33.90000 to 2.58000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Oligocene33.9 - 27.3Pakistan Arca semitorta (77158)
Rupelian33.9 - 27.3Pakistan Arca semitorta (77159)
Early/Lower Miocene23.04 - 15.98India Trisidos semitorta (72083 72220)
Early/Lower Miocene23.04 - 15.98Pakistan Arca semitorta (77160 77172)
Middle Miocene15.98 - 11.63Indonesia Trisidos semitorta (70081)
Late/Upper Miocene11.63 - 5.333Philippines Trisidos semitorta (70138)
Late/Upper Miocene11.63 - 5.333Indonesia Trisidos semitorta (70078 70083)
Late/Upper Miocene11.63 - 5.333Philippines (Panay) Trisidos semitorta (41649)
Pliocene - Pleistocene5.333 - 0.0117Malaysia Trisidos semitorta (72096 72097 72098)
Late/Upper Pliocene3.6 - 2.58Indonesia Trisidos semitorta (70079)