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56 Šn/953-sep.
LUDVIGSEN, Rolf
Upper Cambrian and Lower Ordovician Trilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie / Rolf Ludvigsen. -- 196 s. : il. (tab, fotografie, obr.). -- In: Life Sciences Contributions. -- 134 (1982). -- ISBN 0-88854-287-9. -- s. 1-188
Paleontologie
Cambrian
Ordovician
Upper Cambrian
Upper
Lower
Lower Ordovician
Northwest Territories-Mackenzie
Mackenzie
Trilobite
Biostratigraphy
Rabbitkettle
Formation
Western
District
Stratigraphy
Systematics
Species
56
64218
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