GB3D Type Fossils

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Fossil specimen : BGS GSM47557 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Parkinsonia (Gonolkites) convergens (Buckman, SS.)
Type Status Holotype
Name History

Parkinsonia (Gonolkites) convergens (Buckman, SS.) – See Buckman, SS (1925): Holotype

Registration No. GSM47557
Collector Buckman Collection. 1926
Donor or Associated Person Buckman, SS. 1926
Held By British Geological Survey Logo British Geological Survey
Comments Inferior Oolite - zigzag bed.
Country England
Locality Grange Quarry - Broadwindsor - Dorset.
Grid Reference Not available
Rock Unit Inferior Oolite Group
Biozone zigzag
Geological Age

Bathonian Age (Jurassic Period) – Aalenian Age (Jurassic Period) (164.7 – 175.6 Ma B.P.)


Arkell, WJ. 1956. Bathonian Ammonites p.153-154 pl19.,fig1 57.2

Arkell, WJ. 1957. Treatise Mollusca p.309 384-7

Buckman, SS. 1925. Type Ammonites DXLVI a,B

Hahn. 1970. Jb.Geol.Landesamt. Baden-Wurttemberg p.16-17

Krystyn. 1972. Annln.Naturh.Mus. Wien p.260-262

Sturani. 1966. Boll.Soc.Pal. Italy p.31-32

Westermann. 1958. Beih.Geol.Jahb p.68-69

Available Images

High resolution photographs


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Steroscopic photographs


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