Strigigenalis Whittington and Ross 1953 (trilobite)

Trilobita - Proetida - Bathyuridae

Parent taxon: Bathyuridae according to P. A. Jell and J. M. Adrain 2002

See also Sepkoski 2002

Sister taxa: Acidiphorus, Bathyurellinae, Bathyurina, Bathyurinae, Bathyurus, Eleutherocentrus, Ermanella, Madaraspis, Pseudoolenoides, Rananasus, Raymondites

Subtaxa: Strigigenalis brevicaudata Strigigenalis caudata Strigigenalis crassimarginata Strigigenalis derbyi Strigigenalis implexa Strigigenalis insentis Strigigenalis knighti Strigigenalis stevensi

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Ecology: fast-moving low-level epifaunal deposit feeder

Distribution:

• Ordovician of Canada (10: Newfoundland, Newfoundland and Labrador, Quebec collections), United States (2: California, Nevada)

• Arenig of United States (2: New York, North Dakota)

• Cassinian of Canada (10: Newfoundland, Newfoundland and Labrador, Quebec), United States (39: Oklahoma)

• Jeffersonian of Canada (11: Newfoundland, Newfoundland and Labrador), United States (17: Oklahoma, Texas)

• Canadian of Canada (2: Newfoundland, Newfoundland and Labrador), China (1)

Total: 94 collections including 121 occurrences

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