2 replies to this topic

[Oxytropidoceras]

The April issue of Geology (Geological Society of
America) has an open-access forum with papers
that discuss the dating of "Paleocene" dinosaurs.

The papers are:

Ludwig, K. R., 2012, Direct you-Pb dating of Cretaceous
and Paleocene dinosaur bones, San Juan Basin, New
Mexico: COMMENT. Geology. vol. 40, no. 4, p. e258.
http://geology.gsapu.../40/4/e258.full
http://geology.gsapu...8.full.pdf+html

Renne, P. R., and M. B. Goodwin, 2012, Direct you-Pb
dating of Cretaceous and Paleocene dinosaur bones,
San Juan Basin, New Mexico: COMMENT. Geology.
vol. 40, no. 4, p. e259.
http://geology.gsapu.../40/4/e259.full
http://geology.gsapu...9.full.pdf+html

Fassett, J. E., L. M. Heaman, and A. Simonetti, 2012,
Direct you-Pb dating of Cretaceous and Paleocene
dinosaur bones, San Juan Basin, New Mexico: REPLY
Geology. vol. 40, no. 4, p. e260-e261.
http://geology.gsapu.../40/4/e260.full
http://geology.gsapu...0.full.pdf+html

Koenig, A. E., S. G. Lucas, L. A. Neymark, A. B. Heckert,
R. M. Sullivan, S. E. Jasinski, and D. W. Fowler, 2012,
Direct you-Pb dating of Cretaceous and Paleocene
dinosaur bones, San Juan Basin, New Mexico: COMMENT
Geology. vol. 40, no. 4, p. e262.
http://geology.gsapu.../40/4/e262.full
http://geology.gsapu...2.full.pdf+html

Fassett, J. E., L. M. Heaman, and A. Simonetti, 2012,
Direct you-Pb dating of Cretaceous and Paleocene
dinosaur bones, San Juan Basin, New Mexico: REPLY
Geology. vol. 40, no. 4, p. e263-e264.
http://geology.gsapu.../40/4/e263.full
http://geology.gsapu...3.full.pdf+html

Yours,

Paul H.

[Fruitbat]

They've been fighting this one out for a number of years. Good to see some new work being done on it though.

-Joe

[Fruitbat]

Oh...and by the way...if there are those of you who REALLY want to hear the fireworks, James Fassett will be presenting a paper entitled 'The Paleocene Dinosaurs of the Ojo Alamo Sandstone, San Juan Basin, New Mexico and Colorado' at the 64th Annual Meeting of the Rocky Mountain Section of the Geological Society of America. This meeting in Albuquerque, New Mexico runs from 9-11 May, 2012 and he is scheduled to present on May 11 from 11:15-11:30. For more information, click on THIS LINK. Interestingly, Spencer G. Lucas (one of Fassett's detractors) is presiding over the paleontology session that day. Could be VERY interesting!

-Joe