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Fossil specimen : BGS GSM75203 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Marrolithus anomalis Williams
Type Status Holotype
Name History

Marrolithus anomalis Williams

Marrolithoides anomalis Williams

Registration No. GSM75203
Collector Name not available
Donor or Associated Person A Williams 1947
Held By British Geological Survey Logo British Geological Survey
Country Wales
Locality Bridge House quarry, NE of Llandeilo
Grid Reference Not available
Rock Unit Llandeilo Flags Formation
Biozone Not available
Geological Age

Caradoc Series (Ordovician Period) – Abereiddian Stage (Ordovician Period) (451 – 467 Ma B.P.)

[Closest ICS interval: Late Ordovician Epoch – Darriwilian Age ]


Whittard, WF, 1956, Pal. Soc. Mon. "Ordovician Trilobites of the Shelve Inlier W Shropshire" p.49-50 VII fig16

Williams A Geol Mag 1948 p.82 VI, fig. 6 10a

Available Images

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