GB3D Type Fossils

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Fossil specimen : SM A 45444 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class Lingulata

      Order Acrotretida

Fossil Name Helmersenia micula (McCoy), 1851
Type Status Lectotype
Name History

Helmersenia micula (McCoy), 1851: Lectotype

Siphonotretra micula McCoy

Siphonotreta micula McCoy

Siphonotreta micula McCoy

Siphonotretra micula McCoy: Syntype

Siphonotreta micula McCoy

Siphonotreta micula McCoy

Registration No. A 45444
Collector Name not available
Donor or Associated Person Name not available
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Country Wales
Locality Pen Cerrig, Builth, Radnorshire, Wales
Grid Reference Not available
Rock Unit Llandeilo Bed
Biozone gracilis (low)
Geological Age

Ashgill Series (Ordovician Period) – Caradoc Series (Ordovician Period) (443.8 – 458.4 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch ]


Cocks, L.R.M. 1978. A review of British Lower Palaeozoic Brachiopods, including a synoptic revision of Davidson's monograph Palaeontographical Society Monographs (7): pp.29,176

Davidson 1866. British fossil Brachiopoda Palaeontographical Society Monographs vol. iii part vii (4): p.76 pl. viii figs.2, 2 a McCoy's fig. reproduced

McCoy 1851 c. Annals and Magazine of Natural History ser. (2) vol. viii (1): p.389

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 (3): pp.188, 369 & probably utilised in drawing pl. i h fig.3, 3 a

McCoy 1854 a. Contributions to British Palaeontology (2): p.211

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (5): p.35 a.102

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 (6): p.61

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