Title
First report on the cirratulid (Annelida, Polychaeta) reefs from the Miocene Chilcatay and Pisco Formations (East Pisco Basin, Peru)
Date Issued
01 April 2021
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Elsevier Ltd
Abstract
Tube-dwelling cirratulids from the Miocene Chilcatay and Pisco Formations of southern Peru are described herein for the first time. These worms constitute tube aggregates cropping out in Burdigalian and Tortonian strata of the East Pisco Basin. These specimens are here referred to the extinct species Diplochaetetes mexicanus Wilson, 1986, which was so far known from the Oligocene and lower Miocene of the Pacific Mexico. The new finds represent the first described fossil record of cirratulids from South America. Different morphologies of the tube aggregates are described, as well as their internal framework and the tube wall features. The palaeoecological and palaeobiogeographical implications of these Miocene cirratulid reefs are then discussed.
Volume
107
Number
103042
Language
English
OCDE Knowledge area
Anatomía, Morfología
Paleontología
Subjects
Scopus EID
2-s2.0-85096843016
Source
Journal of South American Earth Sciences
ISSN of the container
08959811
Sponsor(s)
Ministero dell’Istruzione, dell’Università e della Ricerca - MIUR
Università di Catania - UNICT
Tartu Ülikool - TÜ
Università degli Studi di Camerino - UNICAM
We are indebted to Jan Sklenář (NM Prague) for providing T. K. free access to the camera and optical microscope as well as for his help with photography. We are indebted to Lenka Váchová (NM Prague) for help with detailed SEM images. We are grateful to Giovanni Bianucci (Università di Pisa) for his thorough logistic support, and to Claudio Di Celma (Università di Camerino) for his invaluable stratigraphic work on the Chilcatay and Pisco strata. We would like to thank Thomas J. DeVries (Burke Museum of Natural History and Culture) for his help during fieldwork in the East Pisco Basin, and Giovanni Coletti for fruitful discussions during the preparation of the present paper. Rafael M. Varas-Malca, Rodolfo Salas-Gismondi and Alí Altamirano-Sierra (Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos) are also kindly acknowledged for providing curatorial support. Last but not least, we warmly thank the reviewers, Olev Vinn (University of Tartu), Orangel Aguilera (Universidade Federal Fluminense), Claudio Di Celma (Università di Camerino), and Thomas J. DeVries (Burke Museum of Natural History and Culture) for their valuable comments and efforts towards that greatly contributed to improve the present manuscript. The journal Editor Francisco J. Vega carefully handled this paper for Journal of South American Earth Sciences. This work was financially supported by the Czech Ministry of Culture (IP DKRVO 2019–2023/2.III.c, National Museum, 00023272), the Italian Ministry of University and Research, and the University of Pisa (grants PRIN 2012YJSBMK and PRA_2017_0032 to Giovanni Bianucci). This is the Catania Paleontological Research Group contribution n. 469. RS was funded by the University of Catania through “PiaCeRi - Piano Incentivi per la Ricerca di Ateneo 2020-22 linea di intervento 2”.
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