Encyclopedia

Peligran

Period of geologic time

Wikipedia contributorsAdapted for Fathomly · View authors

1 min read
Source updated July 20, 2026

The Peligran (Spanish: Peligrense) age is a period of geologic time within the Paleocene epoch of the Paleogene, used more specifically with South American land mammal ages (SALMA). It may follow the Tiupampan and precede the Itaboraian or Riochican ages, though the exact sequence of Paleocene-Eocene SALMAs is still debated. Radiometric dating of the upper Salamanca Formation suggests that the Peligran occupies an interval from about 63.8 to 63.2 million years ago, which is several million years older than previous estimates.

01Etymology

The age is named after the paleontological site Punta Peligro in Argentina.

02Formations

Formation bold is type	Country	Basin
Salamanca Formation	Argentina	Golfo San Jorge Basin
Bogotá Formation	Colombia	Altiplano Cundiboyacense
Cerrejón Formation	Colombia	Cesar-Ranchería Basin
Chota Formation	Peru	Bagua Basin
Guaduas Formation	Colombia	Altiplano Cundiboyacense
Peñas Coloradas Formation	Argentina	Golfo San Jorge Basin
Santa Lucía Formation	Bolivia	Potosí Basin

03Fossils

Group	Fossils	Formation
Mammals	Amphidolops yapa, Carodnia feruglioi, Notoetayoa gargantuai, Wainka tshotshe, Borhyaenidae indet., Eutheria indet.	Peñas Coloradas
Mammals	Derorhynchus aff. minutus, Escribania chubutensis, Escribania talonicuspis, Monotrematum sudamericanum, Peligrotherium tropicalis, Raulvaccia peligrensis, Requisia vidmari, Sudamerica ameghinoi, Didelphopsis sp., Polydolopimorphia sp., Bonapartheriidae, Metatheria indet., Placentalia indet., cf. Sparassodonta indet.	Salamanca
Reptiles & amphibians	aff. Allognathosuchus sp., Hydromedusa cf. casamayorensis, Kawasphenodon peligrensis, Naiadochelys cf. patagonica, Necrosuchus ionensis, Peligrochelys walshae, Yaminuechelys maior, Caimaninae indet., Leptodactylidae indet., ?Pipidae indet.	Salamanca
	Acherontisuchus guajiraensis, Anthracosuchus balrogus, Carbonemys cofrinii, Cerrejonemys wayuunaiki, Cerrejonisuchus improcerus, Pelomedusoides sp., Puentemys mushaisaensis, Titanoboa cerrejonensis	Cerrejón
	Crocodylia sp.	Peñas Coloradas
Fishes	Dipnoi sp., Elopomorpha sp.	Cerrejón
Flora	Menispina evidens	Bogotá

Watch videos about PeligranExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “Peligran”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.