Nuculoida
Classification
Phylum: Mollusca
Class: Bivalvia
Order: Nuculoida (Dall, 1889)
Cincinnatian Families: Ctenodontidae, Malletiidae, Praenuculidae
Geologic Range
Ordovician – Recent
Common Paleoecology
Nuculoida is an extant order of slow-moving infaunal deposit feeders
Characteristics of the Order
- Shell taxodont, equivalve, with closed margins, isomyarian
- Nacreous or crossed lamellar
- Ligament generally amphidetic
- Gills protobranchiate
- Foot grooved and reptant, not byssiferous in adults
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Treatise on Invertebrate Paleontology, Part N, Mollusca 6(1 of 3) (1969):
Treatise on Invertebrate Paleontology, Part N, Mollusca 6(1 of 3) (1969):
- Shell taxodont, equivalve, with closed margins, isomyarian; nacreous or crossed lamellar; ligament generally amphidetic; gills protobranchiate; foot grooved and reptant, not byssiferous in adults.
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Ctenodontidae
Malletiidae
Praenuculidae
