New crustacean microcoprolites from the Lower Cretaceous (middle Berriasian-lower Valanginian) of the Neuquén Basin, Southern Mendoza, Argentina

Three new ichnotaxa of crustacean microcoprolites from the Neuquén Basin, Argentina, are described in this paper: Palaxius rahuensis Kietzmann n. isp. (early Valanginian), Palaxius mendozaensis Kietzmann n. isp. and Palaxius malarguensis Kietzmann n. isp. (middle to late Berriasian). In addition, a...

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Detalles Bibliográficos
Autores principales: Kietzmann, D.A., Palma, R.M.
Formato: JOUR
Materias:
Carbonate ramp
Coprolites
Favreina
Palaxius
Vaca muerta formation
carbonate ramp
coprolite
Cretaceous
crustacean
ichnology
new taxon
Argentina
Mendoza
Neuquen Basin
Crustacea
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v30_n1_p58_Kietzmann
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Three new ichnotaxa of crustacean microcoprolites from the Neuquén Basin, Argentina, are described in this paper: Palaxius rahuensis Kietzmann n. isp. (early Valanginian), Palaxius mendozaensis Kietzmann n. isp. and Palaxius malarguensis Kietzmann n. isp. (middle to late Berriasian). In addition, a Favreina ichnospecies from the late Berriasian - early Valanginian is reported for the first time for the Neuquén Basin. Controls on the microcoprolite distribution could be related to their biostratigraphic position, sedimentary processes, facies distribution, and diagenesis. Changes in microcoprolite diversity may reflect a shallowing facies trend. © 2010 Elsevier Ltd.

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