Xerticeras gen. nov., a new genus of micromorphic heteromorph ammonite (Ancyloceratina, Ancyloceratidae) from the lower Aptian of Spain

作者：Delanoy Gerard^*; Moreno Bedmar Josep Anton; Ruiz Jose J; Lladser Domingo Tolos

来源：Carnets de Geologie, 2013, 89-103.

DOI：10.4267/2042/49315

• Ancyloceratina
• heteromorphic ammonite
• dimorphism
• lower Cretaceous
• Aptian
• Spain

Biostratigraphical and paleontological studies of lower Aptian material from the Eastern Iberian Chain (Spain) have revealed the presence of a new genus of micromorphic heteromorph ammonite: Xerticeras gen. nov. (type species: Xerticeras salasi sp. nov.). This new taxon comes from the Deshayesites deshayesi and Dufrenoya furcata ammonite zones. The size difference observed in the population is considered due to sexual dimorphism.

• 出版日期2013-4-24