TY  - BOOK
T1  - Six charts showing biostratigraphic zones, and correlations based on conodonts from the Devonian and Mississippian rocks of the Upper Mississippi Valley
DA  - 1962.
CY  - Urbana,
AU  - Collinson, Charles William.
VL  - 328
CN  - QE105
CN  - QE105
PP  - Urbana,
PY  - 1962.
N1  - Cover title.
N1  - Addendum and errata on slip inserted.
ID  - 65552
KW  - Conodonts.
KW  - Paleontology
KW  - Paleontology
KW  - Paleontology
TI  - Six charts showing biostratigraphic zones, and correlations based on conodonts from the Devonian and Mississippian rocks of the Upper Mississippi Valley
ER  -