About: http://webisa.webdatacommons.org/283310163

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 Cambrian Period was a time when most phyla of marine invertebrates first appeared in the fossil record.
http://www.w3.org/ns/prov#wasQuotedFrom	futurity.org