GB3D Type Fossils

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Fossil specimen : SM A 4646 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Lichida

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

Diacanthaspis sladensis (Reed), 1905

Diacanthaspis sladensis (Reed), 1905: Lectotype

Acidaspis sladensis Reed: Syntype

Registration No. A 4646
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
Grid Reference Not available
Rock Unit Haverford Mudstone Formation (basal)
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 (3): p.712 pl.82 fig.10

Cocks, L.R.M. & Price, D. 1975. Palaeontology vol. 18 (4): p.712 pl.82 fig.10

Reed, F.R.C. 1905. Geological Magazine dec. v, vol ii (1): pl. iv fig.8

Reed, F.R.C. 1907. Geological Magazine dec. v vol. iv (2): p.536corrected horizon

Temple, J.T. 1969. Bulletin of the British Museum (Natural History). Geology vol. 18 (3): p.203 pl.1 figs.17, 18 (a.4646 a)

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

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