Author

Jaime A. Villafaña

Universidad Católica de la Santísima ConcepciónORCID 0000-0002-6441-9025Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Paleontology· 2 Ecology· 1

Signature Assays, Organisms & Methods

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Approach:statistical model· 2 Approach:benchmark study· 1 Research Focus:database / resource· 1 Research Focus:ecology & biodiversity· 1 Organism:multiple species· 1

Frequent Co-Authors

Catalina PimientoiD· 2 shared Gregor MathesiD· 2 shared Kristína KocákováiD· 2 shared Amanda GardineriD· 1 shared Amanda M. GardineriD· 1 shared Ana Bricia Guzmán‐CastellanosiD· 1 shared Benjamin Miranda· 1 shared Carlos LaraiD· 1 shared

Activity by Year

2025-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 19 mutual co-author links

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2 shared papersPaleontology

Catalina PimientoORCID

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3 papers

Recent·Most cited

PaleontologybioRxivPreprintJul 24, 2026

Robust evidence for modest neoselachian diversity loss across the K/Pg: Response to Guinot et al.

Amanda M. Gardiner, Gregor Mathes, Rebecca B. Cooper…·Catalina Pimiento

The paper reanalyzes neoselachian diversity through the K/Pg boundary using new data and methods, finding no diversity collapse during the K/Pg and robust results across different data treatments.

DOI 10.64898/2026.04.08.716966

statistical modelbenchmark study

𝕏 PostBluesky

EcologyMarine Environmental ResearchPeer-reviewedApr 3, 2026

Into new depths: climate-driven habitat expansion of the endangered skate Dipturus chilensis (Chondrichthyes, Rajiformes)

Jaime A. Villafaña, Diego Almendras, Daniel Gonzalez‐Aragon…·Marcelo M. Rivadeneira

This study projects the future distribution of the endangered yellownose skate under climate change scenarios, finding a net increase in suitable habitat due to poleward range shifts.

DOI 10.1016/j.marenvres.2026.108037

multiple speciesstatistical model

𝕏 PostBluesky

PaleontologybioRxivPreprintNov 21, 2025

FINS - A global occurrence dataset of fossil neoselachians from the Cretaceous to the Quaternary

Kristína Kocáková, Jaime A. Villafaña, Amanda Gardiner…·Catalina Pimiento

The paper presents FINS, a comprehensive dataset of fossil neoselachian occurrences from the Cretaceous to the Quaternary, doubling the number of records in the Paleobiology Database.

2 citations

database / resource

𝕏 PostBluesky