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Help with extinction/pterosaur references
I need the full bibliographic reference for the following paper:
Johnson, K., D. Nichols, C. Labandeira, and D. Pearson. Devastation of
terrestrial ecosystems at the K-T boundary in North America: The first
calibrated record of plant and animal response to the Chicxulub
Johnson et al. (in the paper, above) talk briefly of an occurrence of a
undescribed pterosaur found in the uppermost part of the Hell Creek
Formation. Supposadly, its the latest occurence of a pterosaur known to
date. Rumor is that someone was working on this specimen. Has it been
published yet? Reference?
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