A new species of azooxanthellate Scleractinia, Sphenotrochus denhartogi, is described from the Late Miocene (Tortonian, Navidad Formation) of Chile. Comparisons are made to three other closely related species which, based on their distinctive costal morphology, form a species complex: S. claibornensis, S. senni, S. denhartogi, and S. auritus. This is the first record of Sphenotrochus from the west coast of South America.

Additional Metadata
Keywords Scleractinia, Turbinoliidae, Miocene, Tortonian, Navidad Formation, Sphenotrochus denhartogi spec. nov., Chile
Journal Zoologische Verhandelingen
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Released under the CC-BY 4.0 ("Attribution") License

Citation
Cairns, S.D. (2003). A new species of Sphenotrochus (Scleractinia: Turbinoliidae) from the Late Miocene (Tortonian) of Chile. Zoologische Verhandelingen, 345, 79–84.