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LOWER PERMIAN PERRINITID AMMONOID FAUNAS FROM THAILAND Journal of Paleontology - Find Articles |
 | | ABSTRACT-The Artinskian Metaperrinites and Kungurian Perrinites faunas are recognized from the Ratburi Group of the Loei area, northcentral Thailand, and the Saraburi Group of the Saraburi area, southcentral of the country, respectively. |
 | | The age was assigned as part of the Leonard/Road Canyon sequence of the American southwest, or the Artinskian/"Kungurian" Kochusu Suite (Formation) of the southeastern Pamirs, based mainly on the occurrence of Perrinites Bose, 1917. |
 | | The assemblage was determined to be representative of the upper Artinskian Baigendzhinian Substage; however, this was merely an inference in response to the knowledge that the Russian Kungurian ammonoids were considered as late Artinskian and pre-Roadian by Bogoslovskaya (1976). |
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