About: http://webisa.webdatacommons.org/172089074

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The most well known, and well studied, mass extinction is, of course, the KT event of 65 million years ago that saw the end of many kinds of organisms, including the dinosaurs.
http://www.w3.org/ns/prov#wasQuotedFrom	amazon.com