Fossil specimen : SM J 48906 – Holotype
| Taxonomic Group |
Kingdom Animalia Phylum Mollusca Class Cephalopoda Order Ammonitida |
|---|---|
| Fossil Name | Aulacostephanus (Xenostephanus) ranbyensis Arkell & Callomon |
| Type Status | Holotype |
| Name History | Aulacostephanus (Xenostephanus) ranbyensis Arkell & Callomon: Holotype |
| Registration No. | J 48906 |
|---|---|
| Collector | Thurrell, R.G. |
| Donor or Associated Person | Thurrell, R.G. |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| 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.) |
| References | Arkell, W.J. & Callomon, J.H. 1963. Palaeontology vol. vi (1): p.232 pl.28 figs.1 a-e |
|---|
Available Images
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/CAMSM/P862335.jp2
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/CAMSM/P862809.jp2
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