GB3D Type Fossils

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Fossil specimen : BGS GSM26404 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Arnioceras vetustum (Simpson)
Type Status Holotype
Name History

Arnioceras vetustum (Simpson)

Registration No. GSM26404
Collector Name not available
Donor or Associated Person Clarkson, WB. 1913
Held By British Geological Survey Logo British Geological Survey
Comments Lower Lias (ssemicostatum zone, sensu lato).
Country England
Locality Robin Hood's Bay - N Yorks.
Grid Reference Not available
Rock Unit Lias Group
Biozone Not available
Geological Age

Aalenian Age (Jurassic Period) – Rhaetian Age (Triassic Period) (171.6 – 203.6 Ma B.P.)


Described by Martin Simpson 1855 Fossils of the Yorkshire Lias (1st Edition p 88 2nd Edition 1884 3rd Edition 1942 p 125 as Holotype of Ammonites vestustus Simp) p.88

Howarth MK 1962 Palaeontology Vol 5 p.103 pl15.,figs2a,b

Available Images

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