TY  - BOOK
AU  - Kummel,Bernhard
TI  - American Triassic coiled nautiloids
AV  - QE75 .P9 no. 250
U1  - 564.52 
PY  - 1953///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Nautiloidea, Fossil
KW  - Paleontology
KW  - United States
KW  - Triassic
N1  - "A study of the classification and evolution of late Paleozoic and early Mesozoic cephalopods, and description of new species."; Bibliography : p. 89-93
ER  -