GB3D Type Fossils

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Fossil specimen : OUM J.20843 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Perisphinctes (Alligaticeras) pseudograciosus Arkell, 1939
Type Status Holotype
Name History

Perisphinctes (Alligaticeras) pseudograciosus Arkell, 1939 – See Arkell (1939): Holotype

Registration No. J.20843
Collector Name not available
Donor or Associated Person Arkell, W.J.
Held By Oxford University Museum of Natural History Logo Oxford University Museum of Natural History
Country England
Locality Woodham Brick Company Pit, Akeman Street Station, Buckinghamshire
Grid Reference Available from host institution
Rock Unit Weymouth Member, Arkell's Bed B
Biozone Quenstedtoceras mariae
Geological Age

Oxfordian Age (Jurassic Period) (157.3 – 163.5 Ma B.P.)


ARKELL, W.J. 1939. The Ammonite succession at the Woodham Brick Company's Pit, Akeman Street Station, Buckinghamshire, and its bearing on the classification of the Oxford Clay. Q. Jl geol. Soc. Lond., XCV (2), 135-222, pls VIII-XI. pp. 161, 219; pl. IX, fig. 12

Available Images

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