| Typhlokorynetes Temporal range: | |
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| Typhlokorynetes plana | |
| Scientific classification | |
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| Subfamily: | Endymioniinae |
| Genus: | Typhlokorynetes Shaw, 1966 [1] |
| Binomial name | |
| Typhlokorynetes plana (Raymond, 1937) | |
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Typhlokorynetes plana is a species of small, button-shaped asaphid trilobites of the family Raphiophoridae that lived during the Early Tremadocian of Vermont, United States.
The generic epithet is a compound word of the Greek words "Typhlos," meaning "blind," and "Korynetes," which means "club-bearer," in reference to the animal's eyeless state, and the glabellum that is shaped in the outline of a club or bowling pin. [1] The specific name "plana" refers to the flattened nature of the body.
The first fossils of this trilobite were described by P. E. Raymond in 1937 as a blind proetid that he named "Warburgella" plana. [2] In 1959, "W." plana would be redescribed by H. B. Whittington as a species of Raymondaspis in the family Styginidae. [3] Alan Shaw voiced a similar opinion when he moved it into its own genus and family, Typhlokorynetes in Typhlokorynetidae, in that it maybe a specialized styginid with unusual or aberrant sutures and hypostome anatomy. [1] During the 1970s, it was then reappraised as a relative of Endymion in Raphiophoridae.
Specimens are known from the Highgate Formation in northwestern Vermont.