GB3D Type Fossils

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Fossil specimen : OUM C.00007 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

Fossil Name Acastoides constricta (Salter, 1864)
Type Status Lectotype
Name History

Acastoides constricta (Salter, 1864) – See Morris (1988): Lectotype

Acastoides constricta (Salter, 1864) – See Shergold (1966): Lectotype

Phacops constrictus Salter, 1864 – See Edmonds (1949): Syntype

Phacops constrictus Salter, 1864 – See Salter (1864): Syntype

Registration No. C.00007
Collector Name not available
Donor or Associated Person Grindrod, R.B. 1882 – 1883
Held By Oxford University Museum of Natural History Logo Oxford University Museum of Natural History
Comments Originally mounted on tablet with C.8 & C.560-C.562
Country England
Locality Malvern Railway Tunnel, Herefordshire or Worcestershire
Grid Reference Available from host institution
Rock Unit Coalbrookdale Formation
Biozone Not available
Geological Age

Homerian Age (Silurian Period) – Sheinwoodian Age (Silurian Period) (427.4 – 433.4 Ma B.P.)


EDMONDS, J.M. 1949. Type and figured specimens of Lower Palaeozoic trilobites in the University Museum, Oxford. Geol. Mag., 86, 57-66. p. 64

MORRIS, S.F. 1988. A review of British trilobites, including a synoptic revision of Salter's monograph. Palaeontogr. Soc. (Monogr.), 1-316. pp. 10, 241

SALTER, J.W. 1864. A Monograph of the British Trilobites from the Cambrian, Silurian and Devonian formations, part 1. Palaeontogr. Soc. (Monogr.), 1-80, I-VI. p. 27; pl. II, figs 13, 13 a

SHERGOLD, J.H. 1966. A revision of Acaste downingia (Murchison) and related Trilobites. Palaeontology, 9 (2), 183-207. p. 197; pl. 30, fig. 23

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