Showing posts with label PORTLAND STONE. Show all posts
Showing posts with label PORTLAND STONE. Show all posts
Saturday, 14 November 2015
Thursday, 5 November 2015
Thursday, 23 June 2011
Friday, 18 February 2011
JURASSIC SCREWS
Imprints of fossils which have fallen from rock. (Portland Stone.)
The long triangular ones were probably Portland Screws (Aptyxiella portlandica) - gastropods of the late Jurassic Era.
If so, they lived more than 144 million years ago.
This post is for The Weekend in Black and White
If so, they lived more than 144 million years ago.
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