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Rodneyellus feldmanni n. gen. n. sp., a new hexapodid crab from tropical America (Crustacea, Brachyura)

Published online by Cambridge University Press:  21 April 2025

Daniel Lima Open the ORCID record for Daniel Lima [Opens in a new window] ,
Maria das Graças Ferreira Alcântara Open the ORCID record for Maria das Graças Ferreira Alcântara [Opens in a new window] ,
Orangel Aguilera Open the ORCID record for Orangel Aguilera [Opens in a new window]  and
Marcos Tavares Open the ORCID record for Marcos Tavares [Opens in a new window]
Daniel Lima*
Affiliation:
Museu de Paleontologia Plácido Cidade Nuvens, Universidade Regional do Cariri, CEP: 63190-000, Santana do Cariri, Ceará, Brazil
Maria das Graças Ferreira Alcântara
Affiliation:
Department of Biological Sciences, Universidade Regional do Cariri, CEP: 63105-000, Crato, Ceará, Brazil
Orangel Aguilera
Affiliation:
Paleoecology and Global Changes Laboratory, Universidade Federal Fluminense, CEP: 24210-201, Niterói, Rio de Janeiro, Brazil
Marcos Tavares
Affiliation:
Museu de Zoologia, Universidade de São Paulo, CEP: 04263-000, São Paulo, São Paulo, Brazil
*
*Corresponding author.
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Abstract

The Indo-West Pacific region serves as the primary habitat for the majority of extant hexapodid crabs. The hexapodids boast a rich evolutionary history dating back to the Cretaceous, marked by a significant radiation throughout the Cenozoic, while the Paleocene–Miocene of tropical America emerges as a pivotal center of radiation, evidenced by reported hexapodid species in Barbados, Panama, Peru, Trinidad, and Venezuela. Through an examination of the paleocarcinological collection at the Museu Paraense Emílio Goeldi, a new genus and species within Hexapodidae is described and illustrated. Rodneyellus feldmanni, the newly described taxon, is named in honor to Dr. Rodney Feldmann for his unwavering commitment to fossil crustacean research. This report marks the inaugural documentation of Hexapodidae in Brazil, encompassing both fossilized and extant representatives. Furthermore, the Pirabas Formation emerges as a critical locus for comprehending the contemporary distribution of decapod crustaceans across tropical America.

UUID: http://zoobank.org/9792bc1e-d06e-490b-a8e6-c23ee1c11fb1

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Journal of Paleontology , First View , pp. 1 - 9
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Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of Paleontological Society

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Footnotes

Guest Editor: Carrie Schweitzer

References

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