Toarcian (Lower Jurassic) ammonite biostratigraphy and ammonite fauna of North America
Toarcian ammonite collections from British Columbia, Nevada, Oregon, the Yukon, and Alaska form the basis of a detailed taxonomic study. Fifty-seven species are described, allocated to 27 genera, one of which is new ( Yakounia). Nine new species are introduced: Yakouma yakounensis, Y. pacifica, Y...
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| Language: | English |
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2008
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| Online Access: | http://hdl.handle.net/2429/2990 |