Middle Oxfordian Ammonites (Perisphinctinae) from Kachchh (India): Biostratigraphic and Palaeobiogeographic implications
Resumen
The study of a rich Middle Oxfordian arnrnonite succession from Kachchh CW India) supplies new evidence to support the open biogeographic connections between the Submediterranean and lndo - East-African Provinces. The studied assemblage is precisely dated as Middle to Upper Transversarium Zone, (Middle Oxfordian), on the basis of representatives of Perisphinctes and Larcheria, this finding being the first record of this West-European form from India. The dating of the assemblage is further strenghtened by the occuJTence of the tethyan form Gregoryceras.
Palabras clave
Biostratigraphy, Palaeobiogeography, Upper Jurassic, lndo - East-African Province, Submediterranean Province, Transversarium Zone.
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