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Re: Silesaurus' Age
Posted for Jerry Harris:
In re: the age of the new Polish dinosaur reported on the list: the site from
which the specimens came canNOT be Ladinian in age, and where the article's
cited "230 million year old" age comes from is unknown. The same site has
produced the index taxa _Paleorhinus_ (a phytosaur), _Metoposaurus_, and other
taxa indicative of a Carnian, not Ladinian, age, based on global terrestrial
tetrapod biostratigraphy. See:
Dzik, J. 2001. A new _Paleorhinus_ fauna in the Early Late Triassic of Poland.
Journal of Vertebrate Paleontology 21(3): 625-627.
This message paraphrased from an e-mail from Spencer Lucas. Feel free to pass
it on to the list. Looks like we're gonna hafta wait a bit longer for Ladinian
Jerry D. Harris
Dept of Earth & Environmental Science
University of Pennsylvania
240 S 33rd St
Philadelphia PA 19104-6316
Phone: (215) 573-8373
Fax: (215) 898-0964
"What can you make of this?"
"This? Why, I can make a hat...or a
broach...or a pterodactyl..."