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Fossil specimen : BGS GSM47847 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Dactylioceras (Orthadactylites) directum
Type Status Holotype
Name History

Dactylioceras (Orthadactylites) directum

Registration No. GSM47847
Collector Name not available
Donor or Associated Person Buckman, SS 1927
Held By British Geological Survey Logo British Geological Survey
Comments Middle Lias (tenuiscostatum zone).
Country England
Locality Middleton Cheney - SW Northants.
Grid Reference Not available
Rock Unit Lias Group
Biozone Not available
Geological Age

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


Arkell WJ 1957 Treatise on Invertebrate Palaeontology Vol L p.252 Fig 284,2

Buckman SS 1926 Type Ammonites (as Orthodactylites directus) plate DCLIV (654)

Hains BA & Horton A 1969 British Regional Geology - Central England district - Mem Geol Surv GB pl9.,fig3

Available Images

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Steroscopic photographs


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3D Scans

1: /BGS/GSM_47847

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