Campanile trevorjacksoni sp. nov. (Mollusca: Gastropoda) from the Eocene of Jamaica: at last, a name for the first fossil used in intercontinental biostratigraphic correlation (de la Beche 1827)
In: Geological Journal. Liverpool Geological Society/Manchester Geological Association: Liverpool. ISSN 0072-1050; e-ISSN 1099-1034, more
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| Keywords |
Geological time > Phanerozoic > Geological time > Cenozoic > Paleogene > Palaeogene > Eocene
Greater Antilles, Jamaica
Taxa > Species > New taxa > New species
Campanile trevorjacksoni; Gastropoda [WoRMS]
Jamaica [Marine Regions]
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| Author keywords |
Yellow Limestone Group; Campanile trevorjacksoni; gastropods; history of geology |
| Authors | | Top |
- Portell, R.W.
- Donovan, S.K.
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| Abstract |
A new species of giant fossil gastropod belonging to the genus Campanile, Campanile trevorjacksoni sp. nov., is described from the Lower Eocene Stettin Formation of the Yellow Limestone Group of Jamaica. Over 180 years ago, internal moulds of these giant gastropods were first reported from the Eocene of Jamaica and referred to as Cerithium; it is only with the discovery of an external mould of the shell spire that it can now be removed from open nomenclature. The ornate shell of C. trevorjacksoni has flat-sided to slightly rounded whorls; straight, impressed sutures; seven beaded, spiral cords per whorl and a nodose subsutural ridge in the more adapertural part of the shell. This sculpture differentiates C. trevorjacksoni from other Paleogene Campanile species. In 1827, de la Beche included C. trevorjacksoni (as Cerithium) in a list of over 20 taxa with which he correlated his white limestone formation (including the Yellow Limestone Group of modern use) with the (Eocene) Calcaire grossier of the Paris Basin. These specimens are lost, but re-examination of de la Beche's list suggests his identifications were mostly reasonable. |
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