Abstract
Abstract Clypeasteroid echinoids can be common in both siliciclastic and carbonate sedimentary sequences of the Miocene of the Mediterranean and Paratethys areas where they frequently form highly fossiliferous deposits. Two echinoid assemblages dominated by clypeasteroids from the early-middle Miocene of Logudoro region (Northern Sardinia) are compared using a detailed sedimentological and taphonomic analysis along with functional morphological considerations. The assemblages differ widely with respect to taxonomic composition, sedimentological features, and taphonomic signatures, such as the orientation and degree of abrasion, encrustation, and bioerosion. The first assemblage (Ardara) is characterized by a low-diversity echinoid fauna, consisting exclusively of the two clypeasteroid genera, Amphiope and different morphotypes of Clypeaster. This deposit represents a proximal tempestite originating in a high-energy, shallow-water, shoreface setting. Higher diversity characterizes the second assemblage (It...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.