†Trigonostoma (Extractrix) Korobkov 1955 (snail)

Gastropoda - Neogastropoda - Cancellariidae

Alternative spelling: Pseudomalaxis (Extractrix)

Parent taxon: Trigonostoma according to J. A. Todd 2001

See also Olsson 1967

Sister taxa: Cancellaria (Trigonostoma) perspectiva, Trigonostoma (Scalptia), Trigonostoma (Trigonostoma), Trigonostoma babylonicum, Trigonostoma biplicifera, Trigonostoma birmanicum, Trigonostoma crispatum, Trigonostoma decorara, Trigonostoma gemmatum, Trigonostoma indicum, Trigonostoma pakistanicum, Trigonostoma panones, Trigonostoma pellucida, Trigonostoma ripleyana, Trigonostoma scalare, Trigonostoma scalarina, Trigonostoma selectum, Trigonostoma speciosum, Trigonostoma tampaensis, Trigonostoma toroense, Trigonostoma trigonostoma, Trigonostoma woodringi

Subtaxa: Trigonostoma (Extractrix) hoerlei

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Ecology: epifaunal carnivore

Distribution:

• Pliocene of United States (5: Florida collections), Venezuela (1)

• Miocene of Germany (1)

Total: 7 collections each including a single occurrence

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