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Fossil specimen : SM A 4644 – Syntype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Lichida

Fossil Name Diacanthaspis sladensis (Reed), 1905
Type Status Syntype
Name History

Diacanthaspis sladensis (Reed), 1905

Diacanthaspis sladensis (Reed), 1905

Acidaspis sladensis Reed: Syntype

Registration No. A 4644
Collector Name not available
Donor or Associated Person Turnbull, V.M.
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Comments part and counterpart : (parts a-b)
Country Wales
Locality St. Martin's Cemetery (roadside W.), Haverfordwest, Pembrokeshire, Wales
Grid Reference Not available
Rock Unit St. Martin's Bed
Biozone Not available
Geological Age

Hirnantian Age (Ordovician Period) (443.8 – 445.2 Ma B.P.)


Cocks, L.R.M. & Price, D. 1975. Palaeontology vol. 18 (4): p.712 pl.82 fig.11 (a.4644 b) fig.12 (a.4644 a)

Reed, F.R.C. 1905. Geological Magazine dec. v, vol ii (1): p.100 pl. iv fig.9

Reed, F.R.C. 1907. Geological Magazine dec. v vol. iv (3): p.536

Temple, J.T. 1969. Bulletin of the British Museum (Natural History). Geology vol. 18 (3): p.203

Whittard, W.F. 1938. Annals and Magazine of Natural History ser. (11) vol. i (2): p.111

Available Images

High resolution photographs


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Steroscopic photographs


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