Important Natural History Auction 2017-07-30
This lot is closed for bidding. Bidding ended on 7/29/2017
SYNAPSID FOOTPRINT PLAQUE
Laoporus sp.
Permian
Coconino Sandstone, Ash Fork, Arizona
The synapsids were a clade of mammal-like reptiles that flourished 270 million years ago. Laoporus is known only from its footprints - trace fossils - with no bones having ever been discovered. This superbly preserved trail comprises a set of roughly 1 inch long footprints on a chalky white matrix measuring 10 x 22 3/4 inches.
$800 - 1,200\n