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Fossil specimen : BGS GSM35586 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Corynexochida

Fossil Name Illaenus (Parillaenus) davisi Salter
Type Status Lectotype
Name History

Illaenus (Parillaenus) davisi Salter

Illaenus davisi Salter

Registration No. GSM35586
Collector n/k
Donor or Associated Person Name not available
Held By British Geological Survey Logo British Geological Survey
Comments Sample also consists of a quantity of matrix.
Country Wales
Locality Rhiwlas, Bala, Merionethshire
Grid Reference Not available
Rock Unit Rhiwlas Limestone Member
Biozone Phillipsinella parabola
Geological Age

Ashgill Series (Ordovician Period) (443.8 – 449 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch ]


Geol. Surv. Decades II pl.II,fig.1

Pal. Soc. 1864 pl. XXIX,fig. 11-13

Pal.Soc. 1854 pl.XXIX,fig. 11-13

Whittington,1965,Pal. Soc. Mon., "Ord. Tril.Bala",pt. III pl.XXI, fig. 1-3

Available Images

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3D Scans

1: bracket /BGS/GSM_35586

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