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Fossil specimen : BGS Ht855 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Homoeoplanulites (Parachoffatia) arisphinctoides Arkell (Mangold 1970)
Type Status Holotype
Name History

Homoeoplanulites (Parachoffatia) arisphinctoides Arkell (Mangold 1970) – See Mangold (1970): Holotype

Registration No. Ht855
Collector Hester, SW. (BGS) 1931
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Comments Lower Cornbrash.
Country England
Locality No.3 Cutting, Railway Relief Line, Frome, Somerset.
Grid Reference Not available
Rock Unit Cornbrash Formation
Biozone Not available
Geological Age

Callovian Age (Jurassic Period) – Bathonian Age (Jurassic Period) (163.5 – 168.3 Ma B.P.)


Arkell, WJ. 1954. Bathonian Ammonites p.119

Arkell, WJ. 1958. Bathonian Ammonites p.218-219 pl32.,fig3

Mangold. 1970. Docum Lab.Geol.Fac.Sci. Lyon p.79-80

Available Images

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Steroscopic photographs


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3D Scans

1: /BGS/Ht_855

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