Species / Dimorphosoma Ancylochila
Stromboidea
Original Description of Dimorphosoma ancylochila by Gardner, 1875, p. 397:
- "Shell elongated; whorls 6 or 7, very angulated, their median keel tuberculated, sutural keel plain, intervals smooth, without spiral striae. The last whorl possesses two angular keels; the posterior considerably predominating, and the anterior being the sutural keel of the spire; the greater keel is continued into the wing. The wing is narrow, simple, thick and angular like a roof-ridge; for some distance it is at right angles to the axis of the spire, and then curves gradually upwards, slightly expanding at the point of curvature."
Locus typicus: "Found in the Crackers rocks at Atherfield", Isle of Wight, Isle of Wight County, South East Region, England
Stratum typicum: Cracker rocks, "Neocomian", lower Cretaceous
Types: "Jermyn Street Museum", British Geological Survey GSM28239, http://www.3d-fossils.ac.uk/fossilType.cfm?typSampleId=605373
Dimorphosoma ancylochila Gardner, 1875, pl. XII, fig. 2, 2a
History and Synonymy
1889
Bristow, 1889, p. 265: Aporrhais (Dimorphosoma) ancylocheila [sic]
1961
Casey, 1961 reports Dimorphosoma ancylochila from the Deshaysites forbesi zone, Upper Lobster Bed/Crackers of the lower Aptian
References
- Bristow, H. W., 1889. The Geology of the Isle of Wight; second edition, revised and enlarged, by Clement Reid, F.L.S., F.G.S. and Aubrey Strahan, M.A., F.G.S.; London, Exre & Spottiswoode, I-XIV, 1-349, pls. 1-5, URL: https://www.biodiversitylibrary.org/page/24984766
- R. Casey, 1961. The stratigraphical palaeontology of the Lower Greensand; Palaeontology, vol. 3(4), p. 487-621, Fulltext
- Cataldo, 2014
- Gardner, 1875
- Zittel, 1881-1885
