GB3D Type Fossils

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Fossil specimen : SM A 16671 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Brachiopoda

    Class Strophomenata

      Order Strophomenida

Fossil Name Leangella (Leptestiina) derfelensis derfelensis (Jones), (1928)
Type Status Lectotype
Name History

Leangella (Leptestiina) derfelensis derfelensis (Jones), (1928): Lectotype

Leptestiina derfelensis (Jones O.T.), 1928: Holotype

Leptellina derfelensis (Jones O.T.)

Leptelloidea derfelensis Jones: Holotype

Registration No. A 16671
Collector Name not available
Donor or Associated Person Elles, Gertrude Lilian (1872-1960)
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences
Country Wales
Locality Derfel gorge, Arening, Wales
Grid Reference Not available
Rock Unit Dicranograptus Shale (base)
Biozone Not available
Geological Age

Caradoc Series (Ordovician Period) (451 – 460.9 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 (3): p.94

Cocks, L.R.M. 2010. Palaeontology vol. 53, part 5, pp. 1155-1200 Caradoc Strophomenoid and Plectambonitoid Brachiopods from Wales and the Welsh Borderlands fig.8 (left), plate 7, p.1183; p.1185

Jones, O.T. 1928. Memoirs of the Geological Survey of England and Wales (Palaeontology) vol. i part 5 (1): p.479 pl. xxv fig. 3 (middle specimen). Fig. 3 is said to be the holotype.

Williams 1955. Philosophical Transactions of the Royal Society (B) vol. 238 (2): p.415 pl.39 fig.73

Available Images

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