GB3D Type Fossils

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Fossil specimen : SM A 59037 – Paralectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

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

Anacheirurus frederici (Salter): Paralectotype

Cheirurus frederici Salter

Cheirurus frederici Salter

Cheirurus frederici Salter

Cheirurus (Eccoptochile) frederici Salter

Registration No. A 59037
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 ]


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) p.322 fig.10 (pars. pygidium) fig'd in Ramsay

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. pygidium)

Salter 1866 b. The geology of North Wales Memoirs of the Geological Survey of England and Wales vol. iii (1st edition) (2):

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.17 b.345 (pars)

Whittard, W.F. 1967. Geological Magazine vol. civ (5): p.285 pl. xv fig.7

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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