Section 39
Chapter 38,857

Two new genera and four new species of Lower Liassic ammonites Cephalopoda Deux nouveaux genres et quatre nouvelles especes dammonites Cephalopoda du Lias inferieur

Guex, J.; Taylor, D.; Rakus, M.; Bucher, H.

Bulletin de la Societe Vaudoise des Sciences Naturelles. novembre; 861: 73-85


Accession: 038856667

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Recent field work on the Triassic-Jurassic System boundary in New York Canyon (Nevada, USA) provides interesting new paleontological and stratigraphical results. Two ammonoid genera (Odoghertyceras and Pleuropsiloceras) and four new species are described. These results demonstrate greater biochronologic refinement and higher ammonoid diversity in the Nevada beds than coeval ones elsewhere, and support New York Canyon as the preferred locality for the system boundary global stratotype.

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