GB3D Type Fossils

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Fossil specimen : SM A 888 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

Fossil Name Anacheirurus frederici (Salter)
Type Status Lectotype
Name History

Anacheirurus frederici (Salter)

Anacheirurus frederici (Salter): Lectotype

Cheirurus frederici Salter

Cheirurus frederici Salter

Cheirurus frederici Salter

Cheirurus (Eccoptochile) frederici Salter

Registration No. A 888
Collector Name not available
Donor or Associated Person Homfray, David (1822-1893)
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Country Wales
Locality Garth Hill, Portmadoc, Caernarvonshire, Wales
Grid Reference Not available
Rock Unit Upper Tremadoc Slate
Biozone Not available
Geological Age

Tremadoc Series (Ordovician Period) (477.7 – 485.4 Ma B.P.)

[Closest ICS interval: Tremadocian Age ]


Lane 1971. British Cheiruridae (Trilobita) Palaeontographical Society Monographs (6): p.71

Ramsay 1866 b. Memoirs of the Geological Survey of England and Wales vol. iii (1st edition) (2): p.322 fig.10 (pars, cephalon)

Salter & Ramsay 1881. The geology of North Wales Memoirs of the Geological Survey of England and Wales 2nd edition (2): p.520 fig.10 (pars)

Salter 1864. A monograph of the British trilobites from the Cambrian, Silurian and Devonian formations Palaeontographical Society Monographs (1): p.74 pl.5 fig.21 (pars cephalon)

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.17

Whillard 1967. Geological Magazine vol. civ (5): p.285 pl. xv fig.6

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 (4): p.142

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