GB3D Type Fossils

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Fossil specimen : OUM J.29254 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Bivalvia

      Order Ostreoida

Fossil Name Gryphaea (Bilobissa) dilobotes Duff, 1978
Type Status Holotype
Name History

Gryphaea (Bilobissa) dilobotes Duff, 1978 – See Duff (1978): Holotype

Gryphaea bilobata calloviense Hallam & Gould, 1975 – See Hallam & Gould (1975): Holotype

Registration No. J.29254
Collector Name not available
Donor or Associated Person Hallam, A.
Held By Oxford University Museum of Natural History Logo Oxford University Museum of Natural History
Country England
Locality Kettlethorpe, East Yorkshire
Grid Reference Available from host institution
Rock Unit Peterborough Member
Biozone Sigaloceras calloviense
Geological Age

Callovian Age (Jurassic Period) (163.5 – 166.1 Ma B.P.)


DUFF, K.L. 1978. Bivalvia from the English Lower Oxford Clay (Middle Jurassic). Palaeontogr. Soc. (Monogr.), 1-137, pls 1-13. p. 77

HALLAM, A. and GOULD, S. 1975. The Evolution of British and American Middle and Upper Jurassic Gryphaea; a Biometric Study. Proc. R. Soc. Lond., B, 189, 511-542. p. 514; pl. 19, figs 10 c, d

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