Infraclass

Pteriomorphia (Pteriomorph bivalves)

Modiolus modiolus. Photo: (c) Kim, Hyun-tae, some rights reserved (CC BY-NC-SA)

iNaturalist • Wikipedia

The Pteriomorphia comprise a subclass of saltwater clams, marine bivalve mollusks. It contains several major orders, including the Arcoida, Ostreoida, Pectinoida, Limoida, Mytiloida, and Pterioida. It also contains some extinct and probably basal families, such as the Evyanidae, Colpomyidae, Bakevelliidae, Cassianellidae, and Lithiotidae.

— Wikipedia

Subtaxa

Order: Pectinida (Scallops and allies)

Order: Mytilida

Where in Humboldt

Discussion

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