TY  - BOOK
AU  - Johnson,J.Harlan
TI  - Lime-secreting algae and algal limestones from the Pennsylvanian of Central Colorado
T2  - Bulletin of the Geological Society of America
PY  - 1940///
CY  -  - EEUU
PB  - 
KW  - Algas fosiles
KW  - calizas algales
KW  - Pennsylvania
KW  - Colorado
KW  - Paleobotanica
KW  - Plantas fosiles
KW  - Paleontologia
KW  - Estados Unidos
KW  - Geologia
ER  -