GB3D Type Fossils

 Home   The project   Search  About fossils Contributors Downloads Links Contact us

Fossil specimen : SM J 48848 – Holotype

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Aulacostephanus (Xenostephanoides) thurrelli Arkell & Callomon
Type Status Holotype
Name History

Aulacostephanus (Xenostephanoides) thurrelli Arkell & Callomon: Holotype

Registration No. J 48848
Collector Thurrell, R.G.
Donor or Associated Person Thurrell, R.G.
Held By Sedgwick Museum of Earth Sciences Logo Sedgwick Museum of Earth Sciences, University of Cambridge
Country England
Locality Ranby (on roadside, 600 yds. E. of church), Lincolnshire, England
Grid Reference Not available
Rock Unit Lower Kimmeridgian
Biozone mutabilis
Geological Age

Kimmeridgian Age (Jurassic Period) (152.1 – 157.3 Ma B.P.)


Arkell, W.J. & Callomon, J.H. 1963. Palaeontology vol. vi (1): p.230 pl.30 figs.1 a-b

Available Images

High resolution photographs


2676 KB


3494 KB

Steroscopic photographs


4520 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