GB3D Type Fossils

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Fossil specimen : OUM J.06057a, b – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Kosmoceras (Gulielmites) medea Callomon, 1955
Type Status Holotype
Name History

Kosmoceras (Gulielmites) medea Callomon, 1955 – See Callomon (1955): Holotype

Registration No. J.06057a, b
Collector Callomon, J.H. 1950
Donor or Associated Person Callomon, J.H. 1953
Held By Oxford University Museum of Natural History Logo Oxford University Museum of Natural History
Country England
Locality Trench on opposite side of road to King's Arms Inn, Gosford Turn Corner, Kidlington, Oxfordshire
Grid Reference Available from host institution
Rock Unit Peterborough Member, Callomon's Oyster-pyrites Bed 12
Biozone Kosmoceras medea
Geological Age

Callovian Age (Jurassic Period) (161.2 – 164.7 Ma B.P.)


CALLOMON, J.H. 1955. The Ammonite succession in the Lower Oxford Clay and Kellaways Beds at Kidlington, Oxfordshire and the zones of the Callovian Stage. Phil. Trans. R. Soc., (B), CCXXXIX, 215-264. p. 226; pl. 2, figs 1 a - d

Available Images

High resolution photographs


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Steroscopic photographs


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