The Peligran (Spanish: Peligrense) age is a period of geologic time (62.5–59.0 Ma) within the Paleocene epoch of the Paleogene, used more specifically with South American land mammal ages (SALMA). It follows the Tiupampan and precedes the Riochican age.[1]

Etymology

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

Formations

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Locations of Peligran formations
Formation
bold is type
Country Basin Notes
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

Fossils

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Group Fossils Formation Notes
Mammals Amphidolops yapa, Carodnia feruglioi, Notoetayoa gargantuai, Wainka tshotshe, Borhyaenidae indet., Eutheria indet. Peñas
Coloradas
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

References

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  1. ^ "Peligran". Paleo Database. Archived from the original on 2007-10-29.
  2. ^ a b Clyde et al., 2014, p.303
  3. ^ Bayona et al., 2012, p.103
  4. ^ Jaramillo et al., 2007, p.168
  5. ^ Chacaltana et al., 2015, p.2
  6. ^ Castro Medina, 2010, p.53
  7. ^ Montoya & Reyes, 2005, p.54
  8. ^ Sempere et al., 1997, p.709
  9. ^ Bajo de la Palangana at Fossilworks.org
  10. ^ a b Cerro Redondo at Fossilworks.org
  11. ^ Puerto Visser 2 at Fossilworks.org
  12. ^ a b Punta Peligro at Fossilworks.org
  13. ^ Bonaparte & Morales, 1997, p.266
  14. ^ Necrosuchus at Fossilworks.org
  15. ^ a b La Puente Pit at Fossilworks.org
  16. ^ Anthracosuchus at Fossilworks.org
  17. ^ Menispina evidens at Fossilworks.org

Bibliography

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Peñas Coloradas Formation
Bogotá Formation
Cerrejón Formation
Chota Formation
Guaduas Formation
Salamanca Formation
Santa Lucía Formation