Book on PT -- but not this PT

Over at Scientist, Interrupted there is an excellent review of a new book by Smithsonian paleontologist Doug Erwin. The review speaks of “the PT boundary” and “the PT mass extinction”, but, sadly for creationists, it is speaking not of the Panda’s Thumb, but the Permian-Triassic boundary. The PT mass extinction is the largest and most severe mass extinction recorded in the fossil record, and (unlike the KT boundary, due to a bolide impact), scientists have not reached consensus on what the the primary cause(s) were.

Erwin’s book is entitled Extinction: How Life Nearly Ended 250 Million Years Ago. Check out the review and the book.