GB3D Type Fossils

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

Pseudosphaerexochus boops (Salter), 1864: Lectotype

Pseudosphaerexochus boops (Salter), 1864

Sphaerexochus boops Salter

Sphaerexochus boops Salter

Sphaerexochus boops Salter: Syntype

Ceraurus clavifrons (Dalman)

Cautleyan Stage (Ordovician Period) (447 – 448 Ma B.P.)

[Closest ICS interval: Katian Age ]

McCoy 1851 a. A synopsis of the classification of the British Palaeozoic rocks with a systematic description of the British Palaeozoic fossils (1): p.154 pl.1 f fig.12

McCoy 1852 a. A synopsis of the classification of the British Palaeozoic rocks with a systematic description of the British Palaeozoic fossils Palaeontographical Society Monographs (1): p.352

McNamara, K.J. 1979. Palaeontology vol. 22 (6): p.64 pl.8 figs.9,11

Price, D. 1974. Palaeontology vol. 17 (5): p.850 pl.113 fig.11

Salter 1864. A monograph of the British trilobites from the Cambrian, Silurian and Devonian formations Palaeontographical Society Monographs (2): p.79 pl. vi fig.28

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.50 as a.114

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.151