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|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Strophomenata - Strophomenida - Bimuriidae
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.
|G. A. Cooper 1956||Shell small, resembling small Bimuria; strongly concavo-convex; transverse and with the hinge equal to or greater than the widest part; surface smooth; pseudopunctate.
Pedicle valve with swollen umbo and median region; foramen produced into a short siphon ; interarea short, anacline ; teeth short and wide ; dental plates absent; other details of the interior not discernible. Anterior margin deflected toward the pedicle valve to form an elevated rim that fits inside a similar rim on the brachial valve.
Brachial valve with anterior margin deflected in the direction of the pedicle valve to form a high rim which fits outside the edge of the pedicle valve ; interarea hypercline ; chilidial plates small. Brachial process small, widely divergent and adhering closely to the palintrope edge. Median septum rising to a crest a short distance anterior to the cardinaha, extended anteriorly as a low ridge or dying out; lateral septa narrowly divergent anteriorly, an elevated and anteriorly fimbriate adductor platform appearing on the outside of the septa.