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Fossil specimen : SM A 520 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Psilocephalus innotatus Salter
Type Status Lectotype
Name History

Psilocephalus innotatus Salter – See Stubblefield, C.J. (1951): Lectotype

Psilocephalus innotatus Salter – See Lake (1942)

Symphysurus innotatus (Salter)

Psilocephalus innotatus Salter – See Woods, H. (1891)

Psilocephalus innotatus Salter – See Salter (1873)

Psilocephalus innotatus Salter – See Ramsay (1866a): Syntype

Psilocephalus innotatus Salter – See Salter, J.W. (1866): Syntype

Registration No. A 520
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 Borth, Caernarvonshire, Wales
Grid Reference Not available
Rock Unit Lower Tremadoc
Biozone Not available
Geological Age

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

[Closest ICS interval: Tremadocian Age ]


Lake 1942. A monograph of the British Cambrian Trilobites Palaeontographical Society Monographs p.311 pl. xliv fig.2

Ramsay 1866 a. The geology of North Wales Memoirs of the Geological Survey of England and Wales 1st edition appendix, p.315 pl. vi figs.9, 9 a

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge p.15

Salter, J.W. 1866. Palaeontographical Society Monographs p.175 pl. xx fig.14

Stubblefield, C.J. 1951. Geological Magazine vol. lxxxviii p.213

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 p.151

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