GB3D Type Fossils

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Fossil specimen : OUM J.04098 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Perisphinctes (Pseudarisphinctes) pachachii Arkell, 1935
Type Status Holotype
Name History

Perisphinctes (Pseudarisphinctes) pachachii Arkell, 1935 – See Arkell (1939): Holotype

Perisphinctes (?Biplices) pachachii Arkell, 1935 – See Arkell (1935): Holotype

Registration No. J.04098
Collector Name not available
Donor or Associated Person Arkell, W.J., ex Pachachi, N.
Held By Oxford University Museum of Natural History Logo Oxford University Museum of Natural History
Country England
Locality Near Osmington, Dorset
Grid Reference Available from host institution
Rock Unit Clavellata Formation, Red Beds
Biozone Not available
Geological Age

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


ARKELL, W.J. 1935. A Monograph on the ammonites of the English Corallian Beds, part I. Palaeontogr. Soc. (Monogr.), 1-30, pls A, B, I-VI. pp. 26, 27; pl. II, figs 2 a, b, text-fig. 9

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. p. lxiii

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