Nuevos trilobites de la formacion suri ( ordovicico temprano ) en la region de chaschuil , provincia de catamarca , implicancias bioestratigraficas
1994; Asociación Paleontológica Argentina; Volume: 31; Issue: 1 Linguagem: Inglês
ISSN
1851-8044
AutoresN. Emilio Vaccari, Beatriz G. Waisfeld,
Tópico(s)Evolution and Paleontology Studies
ResumoA new trilobite fauna from Suri Formation is here described. The fauna includes Annamitella longulosa n. sp., Merlinia zupaya n. sp., Merlinia megacantha (Leanza), Carolinites genacinaca Ross, Oopsites sp., Ampyx tinogastaensis n. sp. and Neseuretus (Neseuretus) chaschuilensis n. sp. The vertical range of the taxa enables the distinction of two trilobite associations. Both of them suggest a Middle Arenigian age. Thus H. megacantha Zone is here restricted to this age.
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