| unusual soft-tissue preservation of a crocodile lizard (squamata, shinisauria) from the green river formation (eocene) and shinisaur relationships. | we describe an unusual squamate fossil from the green river formation (uintan, eocene) from the piceance creek basin, colorado, usa. the new specimen, usnm pal 540708, is a small fossil squamate skin lacking skeletal elements. it is preserved as a part and counterpart in fine-grained limestone. recovery of a fossil organism's skin (not a shed, but a true skin) is unusual and is most often accompanied by bone preservation. phylogenetic analysis of a combined morphology (phenotype) and genetic dat ... | 2014 | 24482393 |