Thursday, November 10, 2011

Whale fossils show important characters of the transition to water

Link: Whale fossils show important characters of the transition to water

 Decorative stone is often used in buildings for its strength and durability but is not often thought of as a hiding place for fossils. If not for an observant Italian stonecutter, a recently discovered fossil whale specimen from Egypt might have become part of the edifice of some new skyscraper rather than the focus of a scientific study. This fossil skull and partial rib cage, described in the latest issue of the Journal of Vertebrate Paleontology, show transitional features of a new species of early whale and hint at how it became a fossil in the first place.



Top: the six limestone plates containing the Aegyptocetus tarfa skeleton before preparation. Plates are lettered a-f from top to bottom stratigraphically. Bottom: schematic shows oblique orientation of the skull, as preserved, relative to bedding and relative to plate surfaces. Photographs and illustration by G. Bianucci and P. D. Gingerich.

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