|
|
|
|
|
Rawson, P.F.; Hoedemaeker, P.J.; Aguirre-Urreta, M.B.; Avram, E.; Ettachfini, M.; Kelly, S.R.A.; Klein, J.; Kotetishvili, E.; Owen, H.G.; Ropolo, P.; Thomson, M.R.A.; Wippich, M.; Vasicek, Z.. |
The Working Group proposes only one modification to its current zonation of the Mediterranean Region, the addition of a cristatum Subzone in the lower part of the inflatum Zone (upper Albian). But in the light of newly published research it highlights levels/areas where further work is required, especially to resolve conflicting zonal schemes. It also proposes a 'Tethyan Province' zonation for the middle Albian. Alternative correlations for the Boreal/Tethyan Valanginian to Barremian stages are tabulated, one based on ammonite evidence alone, the other with additional biostratigraphical data coupled with sequence stratigraphy and magnetostratigraphy. |
Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/317291 |
| |
|
|
Rawson, P.F.. |
Despite the considerable differences in faunas from three widely separated areas in the Early Cretaceous world (Argentina, the Mediterranean area and NW Europe) eight genera are common to all three: Valanginites, Olcostephanus, Karakaschiceras, Neohoploceras, Neocomites, Oosterella, Spitidiscus, and Crioceratites. Across two well-marked intervals (mid Valanginian and mid Hauterivian) the faunas are sufficiently close to allow correlation across the whole area. These represent intervals of global sealevel rise. |
Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/317339 |
| |
|
| |
|
|
Rawson, P.F.; Hoedemaeker, P.J.. |
The Working Group proposes only one modification to its current zonation of the Mediterranean Region, the addition of a cristatum Subzone in the lower part of the inflatum Zone (upper Albian). But in the light of newly published research it highlights levels/areas where further work is required, especially to resolve conflicting zonal schemes. It also proposes a ‘Tethyan Province’ zonation for the middle Albian. Alternative correlations for the Boreal/Tethyan Valanginian to Barremian stages are tabulated, one based on ammonite evidence alone, the other with additional biostratigraphical data coupled with sequence stratigraphy and magnetostratigraphy. |
Tipo: Article / Letter to the editor |
Palavras-chave: Ammonites; Correlation; Lower Cretaceous; 38.16. |
Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/216193 |
| |
|
|
|