Carissimi Associati SGI,
Carissimi Soci Società Associate,
su indicazione del Prof. Rodolfo Carosi (Università di Torino e Presidente SGI) vi segnaliamo l'ultimo podcast di Geology Bites (Conversations about geology with researchers making key contributions to our understanding of the Earth and the Solar System):
Sara Pruss (Smith College) on the First Reef Builders
Di seguito troverete il messaggio dell'ideatore, Oliver Strimpel, e il link al sito web di Geology Bites.
Cordiali saluti,
La Segreteria SGI
Hello, listeners,
In this episode, I talk to Sara Pruss from Smith College about the first reef builders. They were Sponges called archaeocyaths, emerging in the Early Cambrian. There is good evidence to suggest that their reefs were instrumental in the dramatic growth of biodiversity we call the Cambrian explosion. But even though these Sponges only lasted until the Middle Cambrian, reef-building organisms have emerged and died out many times through geological history, with today's scleractinian (stony) fossils appearing only in the Middle Triassic, about 240 million years ago. Pruss is currently trying to understand why reefs are such a persistent feature of the geological record, despite the environmental stresses imposed on them.
I hope you enjoy listening.
Oliver
geologybites.com