GB3D Type Fossils

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Fossil specimen : SM A 42436 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class Rhynchonellata

      Order Orthida

Fossil Name Triplesia maccoyana Davidson, 1869
Type Status Lectotype
Name History

Triplesia maccoyana Davidson, 1869: Lectotype

Triplesia maccoyana Davidson, 1869

Triplesia maccoyani Davidson

Triplesia maccoyana Davidson, 1869: Syntype

Hemithyris depressa (Sowerby, J. de C.)

Registration No. A 42436
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 Brynbedwog Quarry, Bala, Merionethshire, Wales
Grid Reference Not available
Rock Unit Allt-Ddu Mudstone
Biozone Not available
Geological Age

Soudleyan Substage (Ordovician Period) (454 – 455.25 Ma B.P.)

[Closest ICS interval: Sandbian Age ]


Cocks, L.R.M. 1978. A review of British Lower Palaeozoic Brachiopods, including a synoptic revision of Davidson's monograph Palaeontographical Society Monographs (5): pp.86,187

Davidson 1869 d. British fossil Brachiopoda Palaeontographical Society Monographs iii part vii (2): p.199 pl. xxiv fig.29

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): pp.201, 354

Salter 1873. Catalogue of the Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge (3): p.56 as a.157

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.67

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