Abstract
BIOEROSION STRUCTURES ON MARINE MOLLUSCS FROM THE VILLA SORIANO FORMATION (LATE PLEISTOCENE-HOLOCENE) OF URUGUAY. Bioerosion structures found on marine molluscs of the Villa Soriano Formation (late Pleistocene-Holocene) of Uruguay are described, and the main paleoenvironmental parameters dominant during the depositional events are analyzed. The preference of the drilling site on the shell of the prey bivalves by predator gastropods is verified. Three ichnogenera were found: Entobia Bronn, 1838, Caulostrepsis Clarke, 1908 and Oichnus Bromley, 1981. Entobia records the presence of clionid sponges and Caulostrepsis the presence of boring polychaetes. Entobia is also an indicator of clean waters. On the other hand, Oichnus records the predation of gastropods on bivalves and other gastropods. The preferred site of the shell of Ostrea equestris by the predators is the center of the shell, and drills are more common on right valves, due to the life position of this species. Probable species of predators are Urosalpinx cala, U. haneti and Thais haemastoma on hard substrate prey species and Natica isabelleana on soft substrate prey species.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
