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Fossil specimen : BGS GSM26407 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Dactylioceras crassibundum (Simpson)
Type Status Holotype
Name History

Dactylioceras crassibundum (Simpson) – See Howarth (1962)

Registration No. GSM26407
Collector Name not available
Donor or Associated Person Clarkson, Dr WB. 1913
Held By British Geological Survey Logo British Geological Survey
Country England
Locality Whitby - N Yorks.
Grid Reference Not available
Rock Unit Lias Group
Biozone Bifrons
Geological Age

Aalenian Age (Jurassic Period) – Rhaetian Age (Triassic Period) (170.3 – 209.5 Ma B.P.)


Described by Simpson. 1855. Fossils of the Yorkshire Lias. 1st Edition p.55

Described by Simpson. 1884. Fossils of the Yorkshire Lias. 2nd Edition p.87

Howarth. 1962. Palaeontology p.115 pl16.,figs7a,b

Available Images

High resolution photographs


5168 KB


3959 KB

Steroscopic photographs


5363 KB

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3D Scans

1: /BGS/GSM_26407

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