GB3D Type Fossils

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Fossil specimen : BGS GSM75227 – Paratype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Asaphida

Fossil Name Marrolithus primus Williams
Type Status Paratype
Name History

Marrolithus primus Williams

Registration No. GSM75227
Collector Name not available
Donor or Associated Person A.Williams 1947
Held By British Geological Survey Logo British Geological Survey
Country Wales
Locality Golden Grove Mansion, Llandeilo
Grid Reference Not available
Rock Unit Llanvirn Rocks (Undifferentiated)
Biozone Not available
Geological Age

Abereiddian Stage (Ordovician Period) (460.5 – 465.5 Ma B.P.)

[Closest ICS interval: Darriwilian Age ]


Whittard, WF, 1956, Pal. Soc. Mon. "Ordovician Trilobites of the Shelve Inlier W Shropshire" p.53

Williams 1948 Geol. Mag p.78 VI fig. 1

Available Images

High resolution photographs


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Steroscopic photographs


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