Megasurcula wynoocheensis

Megasurcula wynoocheensis is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[7] The name originates from the Wynoochee Valley of Washington state.[1]

Megasurcula wynoocheensis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Megasurcula
Species:
†M. wynoocheensis
Binomial name
†Megasurcula wynoocheensis
(C.S. Weaver, 1912)
Synonyms[1]
  • Turris wynootcheensis Weaver, 1912[2]
  • Turris wynoocheensis Weaver, 1916[3]
  • Pseudotoma wynoocheensis (Weaver, 1912)[4]
  • Surculites (Megasurcula) wynoocheensis (Weaver, 1912)[5]
  • Megasurcula wynoocheensis (Weaver, 1912)[6]

Description

The length of the shell attains 43 mm, its diameter 21.4 mm.

This is a slender, high-spired turrid with a strongly concave whorl profile and sutures riding high upon the vertical segment of the preceding whorls.[1]

Distribution

Fossils of this marine species have been found in Miocene strata in the Pacific Northwest in the United States. The type locality was a logging road west of Montesano, Washington.[1] It has also been found in Oregon and California.[1]

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References
  1. Miocene Gastropods and Biostratigraphy of the Kern River Area, California; United States Geological Survey Professional Paper 642 : Megasurcula wynoocheensis This article incorporates text from this source, which is in the public domain.
  2. Weaver, 1912, "Washington Geol. Survey Bull. 15, p. 70-71, pl. 9, figs. 87-89, 94.
  3. Weaver, 1916, Washington Univ. (Seattle)· Pubs. Geology, v. 1, p. 52-53, pl. 5, fig. 65
  4. Etherington, 1931, California Univ., Dept. Geol. Sci. Bull., v. 20, no. 5, p. 110, pl. 14, figs. 25, 29.
  5. Grant and Gale, 1931, San Diego Soc. Nat. History 1931, v. 1, p. 500, pl. 25, fig. 2.
  6. Weaver, 1942, 'Vashington Univ. (Seattle) Pubs. Geology, v. 5, p. 527, pl. 98, figs. 2, 8.
  7. Worldwide Mollusc Species Data Base: Megasurcula wynoocheensis
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