|mhorn||Дата: Saturday, 07.01.2012, 12:59 | Сообщение # 1|
|Schweigert, G., Kapitzke M., Schreiber D. (2011) First record of the Tethyan ammonite genus Canavarites Hyatt in the Lower Sinemurian // Palaeodiversity. Vol.4. P.17-21. |
A single specimen of the Tethyan ammonite genus Canavarites is recorded from the Lower Sinemurian Arietenkalk Formation of south-western Germany. The specimen was found in a limestone bed in which Vermiceras scylla (REYNÈS) is the predominant ammonite species. Thus, the ﬁ nding horizon most likely corresponds to the British Vermiceras scylla biohorizon which lies at the base of the Bucklandi Subzone. A new species, Canavarites meisteri n. sp., is introduced for the specimen from Swabia. It is the ﬁ rst unequivocal record of this rare genus besides the type localities of the two other Canavarites species near La Spezia in Italy.
Middle Jurassic - Lower Cretaceous ammonites & aptychi