|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Bivalvia - Arcida - Arcidae
It was reranked as Arca (Scapharca) by Dall (1898), Glenn (1904), Pilsbry and Olsson (1941) and da Silva Forti (1969); it was reranked as Anadara (Scapharca) by Schenck and Reinhart (1938) and Jung (1965); it was reranked as Barbatia (Scapharca) by Harris and Palmer (1946).
It was assigned to Barbatia by Harris and Palmer (1946); to Anadara by Schenck and Reinhart (1938) and Jung (1965); to Arca by Dall (1898), Glenn (1904), Pilsbry and Olsson (1941) and da Silva Forti (1969); to Anadarinae by Vokes (1980) and Dockery (1982); to Arcoida by Sepkoski (2002); and to Arcidae by Wienrich (1999) and Mikkelsen (2006).
|Year||Name and author|
|1898||Arca (Scapharca) Dall|
|1904||Arca (Scapharca) Glenn p. 385|
|1938||Anadara (Scapharca) Schenck and Reinhart pp. 58-62|
|1941||Arca (Scapharca) Pilsbry and Olsson p. 9|
|1946||Barbatia (Scapharca) Harris and Palmer p. 44|
|1965||Anadara (Scapharca) Jung p. 427|
|1969||Arca (Scapharca) da Silva Forti p. 65|
|1980||Scapharca Vokes p. 15|
|1982||Scapharca Dockery p. 32|
|1999||Scapharca Wienrich p. 211|
|2002||Scapharca Sepkoski, Jr.|
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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.