GB3D Type Fossils

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Fossil specimen : BGS GSM87175 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Spirantyx calvarina Whittard
Type Status Holotype
Name History

Spirantyx calvarina Whittard

Registration No. GSM87175
Collector Name not available
Donor or Associated Person WF Whittard 1961
Held By British Geological Survey Logo British Geological Survey
Country England
Locality Little Weston coppice
Grid Reference Not available
Rock Unit Meadowtown Formation
Biozone teretiusculus
Geological Age

Abereiddian Stage (Ordovician Period) (460.5 – 465.5 Ma B.P.)

[Closest ICS interval: Darriwilian Age ]


Whittard, WF, 1951 Mon. Pal. Soc. Ord Tril of Shelve Inlier XXV, fig. 6& 7

Available Images

High resolution photographs


3870 KB


3461 KB

Steroscopic photographs


4081 KB


5645 KB

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