|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Arcida - Arcidae
It was reranked as Arca (Trisidos) by Grant and Gale (1931).
It was assigned to Arca by Grant and Gale (1931); to Arcidae by Mukerjee (1939) and Lamprell and Healy (1998); to Arcinae by Vokes (1980) and Tiwari (2001); and to Arcoida by Sepkoski (2002).
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