Trigonarca Conrad 1862 (clam)

Bivalvia - Arcida - Glycymerididae

Alternative spelling: Trigonoarca

Parent taxon: Arcullaeinae according to E. Gliozzi and A. Malatesta 1983

See also Palmer and Brann 1965, Sepkoski 2002 and Vokes 1980

Sister taxa: Arcullaea, Peruarca, Pettersia, Protarca, Spinarcullaea

Subtaxa: Trigonarca angolensis Trigonarca californica Trigonarca camerunensis Trigonarca cardiformis Trigonarca curvatodonta Trigonarca excavata Trigonarca furoni Trigonarca jacksonensis Trigonarca jessupae Trigonarca manzadinensis Trigonarca schweinfurthi Trigonarca sectilis Trigonarca semiglabra

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Ecology: facultatively mobile semi-infaunal suspension feeder

Distribution:

• Cretaceous to Paleogene of Mali (1 collection)

• Cretaceous of Afghanistan (1), Algeria (1), Austria (1), Brazil (2), Bulgaria (1), Cameroon (2), Colombia (1), the Congo-Brazzaville (3), Egypt (2), Germany (1), India (2), Japan (4), Jordan (1), Libya (1), Madagascar (4), Mexico (2), Mozambique (2), Nigeria (3), Peru (3), the Russian Federation (1), Senegal (1), Serbia and Montenegro (1), Spain (1), Trinidad and Tobago (1), Tunisia (3), USSR (3), the United Kingdom (2), United States (31: Alabama, California, Georgia, New Jersey, New Mexico, North Carolina, Texas), Venezuela (1)

• Jurassic of United States (2: Alaska)

Total: 85 collections including 109 occurrences

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Specimen images are retrieved through the ePANDDA API.


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