GB3D Type Fossils

 Home   The project   Search  About fossils Contributors Downloads Links Contact us

Fossil specimen : BGS GSM8710 – Lectotype

Taxonomic Group

Kingdom Animalia

  Phylum Arthropoda

    Class Trilobita

      Order Agnostida

Fossil Name Geragnostus maccoyi Salter
Type Status Lectotype
Name History

Geragnostus maccoyi Salter

Agnostus maccoyi Salter

Agnostus pisiformis Murchison

Registration No. GSM8710
Collector Sir M de la Beche
Donor or Associated Person Stokes
Held By British Geological Survey Logo British Geological Survey
Country Wales
Locality Builth
Grid Reference Not available
Rock Unit Llandeilo Rocks (Undifferentiated)
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 ]


Murchison, 1837,Sil. Syst 25, fig. 6 4

Salter 1866 Mem Geol Surv III XIII fig. 8

Whittard, WF, 1955, Pal. Soc. Mon. "Ordovician Trilobites of the Shelve Inlier W Shropshire" 1, fig. 5

syntype 1864, Mem Geol. Surv. Dec. XI 1, fig 7,7a

Available Images

High resolution photographs


4019 KB

Steroscopic photographs


4561 KB

View these images in your web browser using our JPEG2000 viewer. Zoom in and out and pan around in high resolution. Requires JavaScript to be enabled.

Download these images as high resolution JPEG2000 files. You may need to use image-editing software to view these files.

click image or here to close