GB3D Type Fossils

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Fossil specimen : SM J 6566 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Spiroceras waltoni (Morris)
Type Status Holotype
Name History

Spiroceras waltoni (Morris): Holotype

Ancyloceras waltoni Morris

Ancyloceras waltoni Morris: Undifferentiated Type

Registration No. J 6566
Collector Name not available
Donor or Associated Person Walton
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Country England
Locality Bridport, Dorset, England
Grid Reference Not available
Rock Unit Inferior Oolite ([Shell Bed])
Biozone Not available
Geological Age

Bathonian Age (Jurassic Period) – Aalenian Age (Jurassic Period) (166.1 – 174.1 Ma B.P.)


Buckman, S.S. 1925. Yorkshire type ammonites vol. v (3): pl. dxl photograph reproduced

Morris 1845. Annals and Magazine of Natural History vol. xv (1): p.33 pl. vi figs.5 a-c

Woods, H. 1891. Catalogue of the Type Fossils in the Woodwardian Museum, Cambridge. Henry Woods with preface by T. McKenny Hughes CUP. 180+xiv SPL: II. 16 (2): p.125

Available Images

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Steroscopic photographs


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