Csruane91 Posted November 10, 2015 Share Posted November 10, 2015 What age/ ages are these leaves likely? Link to comment Share on other sites More sharing options...
Csruane91 Posted November 10, 2015 Author Share Posted November 10, 2015 Sorry, first images were blurry Link to comment Share on other sites More sharing options...
Wrangellian Posted November 10, 2015 Share Posted November 10, 2015 Where did you find them, or did someone else find them? Link to comment Share on other sites More sharing options...
Csruane91 Posted November 10, 2015 Author Share Posted November 10, 2015 High Rockies in Colorado Link to comment Share on other sites More sharing options...
Rockwood Posted November 10, 2015 Share Posted November 10, 2015 Quite likely early to mid Eocene. Link to comment Share on other sites More sharing options...
Wrangellian Posted November 10, 2015 Share Posted November 10, 2015 Quite likely early to mid Eocene. Are you familiar with the geology of the area or the site itself? or the leaves? Just wondering how you narrowed it down so far. The location has not been narrowed down much and there are rocks of all ages in Colorado, and deciduous leaves range back into the Cretaceous. Link to comment Share on other sites More sharing options...
Rockwood Posted November 10, 2015 Share Posted November 10, 2015 I gave the age for Lake Uinta. It seemed a reasonable guess given the parameters. Link to comment Share on other sites More sharing options...
jpc Posted November 10, 2015 Share Posted November 10, 2015 The high rockies is a very vague area that includes possibly leafy fossils from a variety of ages. I have eeen similar leaves in the Cretaceous, Paleocene and Eocene of neighboring Wyoming. Link to comment Share on other sites More sharing options...
abyssunder Posted November 10, 2015 Share Posted November 10, 2015 I agree that is difficult to determine the age of the sediments without an exact locality of the finds, even knowing the color and the type of the matrix could be range from Late Cretaceous to Late Eocene maybe Lower Oligocene. The approximate location, or county region I think could help a little. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Herb Posted November 11, 2015 Share Posted November 11, 2015 my guess is Eocene also "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
FossilDAWG Posted November 12, 2015 Share Posted November 12, 2015 I always wonder why people feel the need to be so cryptic about locality information. We don't need exact GPS coordinates or anything of that nature, but reference to a nearby town or geographical feature is very helpful. As others have said, on their own these leaves could be any age from Lower Cretaceous to Recent, and rocks of almost all those ages are present in the "High Rockies" in Colorado. Better locality data will narrow down the geology a lot, allowing us to focus in on the most likely source for the specimens, information that we are happy to pass on. Don Link to comment Share on other sites More sharing options...
Csruane91 Posted November 12, 2015 Author Share Posted November 12, 2015 They were found in marble Colorado on McClure pass. Link to comment Share on other sites More sharing options...
Rockwood Posted November 14, 2015 Share Posted November 14, 2015 Back to square 1 ? Eastern shore of Uinta ? Link to comment Share on other sites More sharing options...
Jdeutsch Posted November 15, 2015 Share Posted November 15, 2015 the pass cuts through Cretaceous- Mancos Shale https://en.wikipedia.org/wiki/Mancos_Shale Link to comment Share on other sites More sharing options...
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