Fossil specimen : BGS GSM35746 – Undifferentiated Type
| Taxonomic Group |
Kingdom Animalia Phylum Mollusca Class Gastropoda Order Murchisoniina |
|---|---|
| Fossil Name | Murchisonia obscura Portlock |
| Type Status | Undifferentiated Type |
| Name History | Murchisonia obscura Portlock Cyrtostropha obscura (Portlock) Loxonema obscura Portlock |
| Registration No. | GSM35746 |
|---|---|
| Collector | Portlock |
| Donor or Associated Person | Name not available |
| Held By |
 British Geological Survey
|
| Comments | Sample is counterpart of GSM 8142 |
| Country | Northern Ireland |
|---|---|
| Locality | Desertcreight, Tyrone,N. Ireland |
| Grid Reference | Not available |
| Rock Unit | Caradoc Rocks (Undifferentiated) |
|---|---|
| Biozone | Not available |
| Geological Age |
Caradoc Series (Ordovician Period) (449 – 458.4 Ma B.P.) [Closest ICS interval: Late Ordovician Epoch ] |
| References | Donald,(=Longstaff),1902,QJGS,LVIII,op. cit. pg. 327 pl.VIII,fig. 2,2a Portlock,1843,Geol. Rept. Londonderry etc pl. XXXI,fig.3 Reed,1952,Proc. Roy. Irish Acad. 55,B,No 3,pg.83 |
|---|
Available Images
High resolution photographs
/BGS/P813458.JP2
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Steroscopic photographs
/BGS/P814056.JP2
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