Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Ambonychia Species: Ambonychia radiata (Hall, 1847) Stratigraphic Occurrences Geographic Occurrences Map point data provided by iDigBio. Identification in Hand Sample Surface of the valves marked by strong, radiating ribs Ribs …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Ambonychia Species: Ambonychia alata (Meek, 1872) Stratigraphic Occurrences Geographic Occurrences Map point data provided by iDigBio. Identification in Hand Sample Straight hinge line Strong, radiating costae Strongly defined imbricating growth …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Ambonychia Species: Ambonychia robusta (Miller, 1880) Stratigraphic Occurrences Geographic Occurrences Map point data provided by iDigBio. Identification in Hand Sample Shell is large, very ventricose. Distinctive narrow radial plications. Beak …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Ambonychia Hall, 1847 Cincinnatian Species: Ambonychia alata, Ambonychia radiata, Ambonychia robusta Geologic Range Middle Ordovician – Late Ordovician Common Paleoecology Ambonychia is an extinct genus of stationary epifaunal suspension feeders …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Anoptera Ulrich, 1893 Cincinnatian Species: Anoptera miseneri Geologic Range Middle Ordovician – Late Ordovician Common Paleoecology Cleionychia is an extinct genus of stationary epifaunal suspension feeders Identification in Hand Sample: …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Allonychia Species: Allonychia jamesi (Meek, 1872) Stratigraphic Occurrences Geographic Occurrences Map point data provided by iDigBio. Identification in Hand Sample: Large, convex shell Hinge is about two-thirds of the diameter …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Anomalodonta Species: Anomalodonta gigantea (Miller, 1847) Stratigraphic Occurrences Geographic Occurrences Map point data provided by iDigBio. Identification in Hand Sample Large pelecypod 8-10 cm. in length, 8-10 cm in width …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae Genus: Anomalodonta Miller, 1874 Cincinnatian Species: Anomalodonta gigantea Geologic Range Late Ordovician Common Paleoecology Anomalodonta is an extinct genus of stationary epifaunal suspension feeders Identification in Hand Sample: Broad, radial plications …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida Family: Ambonychiidae (Miller, 1877) Cincinnatian Genera: Allonychia, Ambonychia, Anomalodonta, Anoptera Geologic Range Middle Ordovician – Late Devonian, ?Early Mississippian Common Paleoecology Ambonychiidae is an extinct order of stationary epifaunal suspension feeders Description of …

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Classification Phylum: Mollusca Class: Bivalvia Order: Pterioida (Newell, 1965) Cincinnatian Families: Ambonychiidae, Pterineidae Geologic Range Ordovician – Recent Common Paleoecology Pterioida is an extant order of stationary low-level epifaunal suspension feeders. Characteristics of the Order Generally inequivalve and pleurothetic Heteromyarian …

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