Tirolitids from the upper Werfen Formation of the Dolomites (Southern Alps, Italy) have been compared with those occurring in the Csopak Marl Formation of Bakony (Transdanubian Mid-mountains, Hungary), using the ammonoid events of the Muc section (Dalmatia, Yugoslavia), which have already been proposed as a standard Upper Scythian sequence in Europe, as reference point. The Dolomite and Bakonian populations have been classified into two different species, respectively: T. cassianus and T. illyricus. T. cassianus is older than T. illyricus, they represents the early stages of Tirolitid evolution, which would be followed by T. seminudus, T. idrianus and T. carniolicus. The last three evolutionary species, mostly recorded in the Dalmatian sequences, are missing in the Dolomites and Bakony because of the ultimely Tirolites disappearance. -from Author
Tirolites (Ammonoidea) from the Dolomites, Bakony and Dalmatia: Taxonomy and biostratigraphy
POSENATO, Renato
1992
Abstract
Tirolitids from the upper Werfen Formation of the Dolomites (Southern Alps, Italy) have been compared with those occurring in the Csopak Marl Formation of Bakony (Transdanubian Mid-mountains, Hungary), using the ammonoid events of the Muc section (Dalmatia, Yugoslavia), which have already been proposed as a standard Upper Scythian sequence in Europe, as reference point. The Dolomite and Bakonian populations have been classified into two different species, respectively: T. cassianus and T. illyricus. T. cassianus is older than T. illyricus, they represents the early stages of Tirolitid evolution, which would be followed by T. seminudus, T. idrianus and T. carniolicus. The last three evolutionary species, mostly recorded in the Dalmatian sequences, are missing in the Dolomites and Bakony because of the ultimely Tirolites disappearance. -from AuthorI documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
