GB3D Type Fossils

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Fossil specimen : BGS GSM35375 – Undifferentiated Type

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Phacopida

Fossil Name Xylabion gelasinosum (Portlock)
Type Status Undifferentiated Type
Name History

Xylabion gelasinosum (Portlock)

Cheirurus gelasinosus Portlock

Arges planospinosus Portlock

Cheirurus (Amphion) gelasinosus Portlock

Registration No. GSM35375
Collector Name not available
Donor or Associated Person Portlock Coll
Held By British Geological Survey Logo British Geological Survey
Country Northern Ireland
Locality Tyrone
Grid Reference Not available
Rock Unit Caradoc Rocks (Undifferentiated)
Biozone Not available
Geological Age

Caradoc Series (Ordovician Period) (449 – 458.4 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch ]


Lane 1971 Pal Soc Mon p.41 pl 2 fig 13

Portlock 1843 Geol of Londonderry and parts of Tyrone and Fernanagh p.289 pl 3 fig 4a

Salter 1853 Geol Surv Decades VII p.11 pl 2

Available Images

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