Order
Ostreoida
Suborders of Ostreoida
Ostreina
Pectinina
Superfamily
DIMACEA
Family
DIMYIDAE
Genera
Basiliomya
Dimya
Suborder
Ostreina
Superfamilies of Ostreina
OSTRAECEA
PLICATULACEA
Superfamily
OSTRAECEA
Families of OSTRAECEA
GRAPHAEIDAE
LITHIOTIDAE
OSTREIDAE
Family
GRYPHAEIDAE
Subfamilies of GRYPHAEIDAE
EXOGYRINAE
GRYPHAEINAE
PYCNODONTEINAE
Subfamily
EXOGYRINAE
Genera
Actostreon
Aetostreon
Amphidonta
Amphidonte
Amphiodonta
Amphitonde
Ceratostrea
Ceratostreon
Costagyra
Exagyra
Exegyra
Exogera
Exogira
Exogyra
Exoyra
Fluctogyra
Gryphaeostrea
Gryphoeostrea
Gryphostrea
Gyrostrea
Ilymatogyra
Nanogyra
Nutogyra
Palaeogyra
Planospirigenus
Planospirites
Pseudogyra
Rhynchostreon
Rhyncostreon
Vultogryphaea
Subfamily
GRYPHAEINAE
Genera
Africogryphaea
Bilobissa
Catinula
Catinulus
Cryphaea
Deltoideum
Ghyphaea
Glyphaea
Griphaea
Griphea
Gryphaae
Gryphaca
Gryphaea
Gryphaeigenus
Gryphea
Gryphera
Gryphites
Gryphoea
Liogriphaea
Liogryphaea
Liogryphanaea
Liogryphea
Liostrea
Lyogryphaea
Pernostrea
Praeexogyra
Rygepha
Volgaea
Subfamily
PYCNODONTEINAE
Tribes of PYCNODONTEINAE
Hyotissin
Neopycnodontini
Genera of PYCNODONTEINAE
Avia
Biauris
Biaurus
Circographaea
Circogryhaea
Circogryphaea
Costeina
Crenostrea
Cretagryphaea
Gigantostrea
Gryphaella
Hyotissa
Hyotissa
Labrostrea
Neopycnodonta
Neopycnodonte
Parahyotissa
Phrygaea
Phygraea
Pycnodonta
Pycnodonte
Subgenera of Pycnodonte
Hyotissa
Pycnodonte
Genera (continued)
Pycnodontes
Pycnodunta
Pycnondota
Pygnodonta
Tribe
Hyotissin
Genera
Hyotissa
Parahyotissa
Subgenera of Parahyotissa
Numismoida
Parahyotissa
Pliohyatissa
Tribe
Neopycnodontini
Genus
Neopycnodonte
Family
LITHIOTIDAE
Genera
Cochlearites
Lithiotis
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