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Artículo

Bryozoans and borings from Destacamento Río Salado Member (Buenos Aires Province, Argentina): Systematics and palaeoenvironment

López Gappa, Juan JoséIcon ; Pereyra, Cristian Ramon
Fecha de publicación: 10/2020
Editorial: Pergamon-Elsevier Science Ltd
Revista: Journal of South American Earth Sciences
ISSN: 0895-9811
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Paleontología

Resumen

This study describes and discusses bryozoan taxa and borings associated with carbonate fragments and bioclasts from Destacamento Río Salado Member, Canal de las Escobas Formation, mid-Holocene of northeastern Buenos Aires Province, Argentina. Three species of encrusting bryozoans were found co-occurring with borings: Biflustra puelcha, Conopeum reticulum and Electra arcuata comb. nov. In addition, bilaminar fragments of Hippomonavella charrua showing considerable surface abrasion were also found among the carbonate clasts. C. reticulum, formerly regarded as a cryptogenic species in Argentine harbours, is present in the Southwest Atlantic at least since the mid-Holocene, so it should be considered as a native species in the area. Borings comprise Gastrochaenolites isp., Trypanites isp., Maeandropolydora isp., Entobia isp. and Caulostrepsis isp. The co-occurrence of bryozoans and borings suggests that the carbonate fragments were transported from an abrasion platform when they were already bored, and then they were encrusted by the bryozoans at the study site, a tidal flat depositional environment.
Palabras clave: CARBONATE FRAGMENTS , CHEILOSTOME BRYOZOA , ENCRUSTING COLONIES , HOLOCENE
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/114990
URL: https://linkinghub.elsevier.com/retrieve/pii/S0895981120302558
DOI: http://dx.doi.org/10.1016/j.jsames.2020.102712
Colecciones
Articulos(MACNBR)
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Citación
López Gappa, Juan José; Pereyra, Cristian Ramon; Bryozoans and borings from Destacamento Río Salado Member (Buenos Aires Province, Argentina): Systematics and palaeoenvironment; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 102; 10-2020; 1-9
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