TY  - RPRT
TI  - Catastrophically buried middle Pennsylvanian sigillaria and calamitean sphenopsids from Indiana, USA: What kind of vegetation was this?
AU  - William A. DiMichele
AU  - W.J. Nelson
AU  - S. Elrick
AU  - P.R. Ames
PY  - 2009
DO  - 10.2110/palo.2008.p08-051r
UR  - https://pubs.usgs.gov/publication/70035742
ID  - 70035742
ER  -