Geological range: Miocene to Pleistocene (source: Paleobiology Database).
Geographic distribution: A distributional map for Costaglycymeris may be accessed from the Paleobiology Database.
Diversity: The WoRMS database recognizes no extant species of Costaglycymeris (unvetted). The Paleobiology Database recognizes 5 species from the fossil record (unvetted).
Paleoecology: As members of the Glycymerididae, it is assumed that all species of Costaglycymeris are epifaunal or infaunal suspension feeders and are unattached and actively mobile. Source: Todd (2016).
Phylogenetic status: Unknown.