Outgroup

Pernostrea

Liostrea_eduliformis

Liostrea_delta

Liostrea_hisingeri

Praexogyra_calceola

Praexogyra_acuminata

Nanogyra_nana

Ilymatogyra_arietina

Exogyra_laeviscula_slash_tigrina

Exogyra_ponderosa

Ceratostreon_zueatherfordensis

Ceratostreon_texanum

Amphidonte

Gyphaea_arcuata

Gryphaea_arcuataeformis

Gryphaea_sportella

Catinula_beaumonti

Gryphaea_pictavensis

Gryphaea_nebrascensis

Texigraphaea_roemeri

Parahyotissa_mcgynti

Pycnodonte_roanokensis

UNC_13497b

Nicaisolopha_nicasei

Ostreola_conchaphila

Crassostrea_virginica

Crassostrea_columbiensis

Striostrea_marganitacea

Saccostrea_palmula

Lopha_solitaria

Dendostrea_frons

Lopha_haidingeriana

Rastellwn_macropterwn

Rastellwn_carinatum

Agerostrea_mesenterica

Agerostrea_falcata