Results 181 to 190 of about 8,428 (209)

Hewitt, pennsylvanian ironmaster

Notes and Queries, 1924
openaire   +2 more sources

Middle Pennsylvanian Ichnofauna from Eastern Oklahoma, USA

Ichnos, 2004
Spencer Lucas, Allan Lerner
exaly  

Paleoecology of Pennsylvanian phylloid algal buildups in south Guizhou, China

Facies, 2007
Elias Samankassou
exaly  

PENNSYLVANIAN GYMNARTHRIDS

1978
openaire   +1 more source

Ecological changes in Pennsylvanian (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances

Earth-Science Reviews, 2017
B A Thomas
exaly  

Modes of Occurrence and Abundance of Trace Elements in Pennsylvanian Coals from the Pingshuo Mine, Ningwu Coalfield, Shanxi Province, China

Minerals (Basel, Switzerland), 2016
Songhang Zhang, Shuheng Tang, Ning Yang   +2 more
exaly  

Palynology of late Middle Pennsylvanian coal beds in the Appalachian Basin

International Journal of Coal Geology, 2002
exaly  

Temporal and spatial distribution of ostracodes across the Pennsylvanian–Permian boundary interval in eastern North America

International Journal of Coal Geology, 2013
Michael Rygel, Scott D Elrick
exaly  

Pennsylvanian Bonds

Notes and Queries
openaire   +1 more source

A pennsylvanian biota.

Science (New York, N.Y.), 2010
openaire   +1 more source