TAXONOMY,STRATIGRAPHY AND PHYLOGENY OF THE NEW GENUS <em>LANCEOPTYCHITES</em> (AMMONOIDEA, ANISIAN)
For the first time a population analysis of compressed Ptychitidae (Ammonoidea) bed-by-bed collected from Prezzo Limestone (Upper Anisian, Southern Alps) is performed. The analysis allows to demonstrate that within some populations of compressed ptychitids during the growth the venter may become sub...
Main Author: | MARCO BALINI |
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Format: | Article |
Language: | English |
Published: |
Università degli Studi di Milano
1998-07-01
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Series: | Rivista Italiana di Paleontologia e Stratigrafia |
Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/5328 |
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