Title
Palaeogene and Neogene brachyurans of the Amazon basin: A revised first appearance date for primary freshwater crabs (Brachyura, Trichodactylidae)
Date Issued
01 January 2017
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Brill Academic Publishers
Abstract
We describe claw fragments of fossil primary freshwater crabs from three areas in the Amazon basin, Tarapoto (Early Oligocene) and Contamana (Middle Eocene to early Late Miocene) in Peru, and Eirunepé (Late Miocene) in Brazil. All these fragments most likely belong to the family Trichodactylidae. We show a continuous presence of primary freshwater crabs in proto-Amazonian lowlands from the Middle Eocene to the Late Miocene and can thus shift the earliest appearance date of freshwater-adapted brachyurans into the Eocene, at least in the Neotropics.
Start page
953
End page
967
Volume
90
Issue
October 7
Language
English
OCDE Knowledge area
Paleontología
Subjects
Scopus EID
2-s2.0-85029646827
Source
Crustaceana
ISSN of the container
0011216X
Sponsor(s)
Fieldwork and post-field analyses in Peru were carried out thanks to the support from the CNRS ‘Eclipse 2’, CNRS ‘Palaeo2’, and Toulouse University ‘SPAM’ programs, from the Institut des Sciences de l’Evolution, the ANR PALASIAFRICA (ANR-08-JCJC-0017, ANR-ERC), the L.S.B. Leakey Foundation, the National Geographic Society (grant 9679-15), and the Campus France program of the French Ministry of Foreign Affairs. This work was further supported by an “Investissements d’Avenir” grant managed by the Agence Nationale de la Recherche (CEBA, ANR-10-LABX-25-01) and by the cooperative programs ECOS-FonCyT (A14-U01) and CNRS-CONICET, in the frame of the on-going cooperation agreement between the Museo de Historia Natural de la Universi-dad Nacional Mayor San Marcos (Lima, Peru) and the Institut des Sciences de l’Evolution de Montpellier-Université de Montpellier, France. CM thanks the Con-selho Nacional de Desenvolvimento Científico e Tecnológico (CNPq - Brazil) for an ongoing research grant (Proc. PQ 304736/2015-5). SK is supported by a grant of the German Research Foundation (DFG; grant KL2378/2-1). The sampling campaign in the Eirunepé region was enabled by the Austrian Science Fund (project P21748-N21 to MG). We also thank Peter K. L. Ng and Javier Luque for their helpful comments on the initial manuscript.
Sources of information:
Directorio de Producción Científica
Scopus