CATASTROPHICALLY BURIED MIDDLE PENNSYLVANIAN SIGILLARIA AND CALAMITEAN SPHENOPSIDS FROM INDIANA, USA: WHAT KIND OF VEGETATION WAS THIS? |
DIMICHELE,W. A. et al. |
PALAIOS(2009),24(3):159 |
http://dx.doi.org/10.2110/palo.2008.p08-051r |
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