Meanings
- biologyA geologic age, 53.0–50.0 mya and within the Ypresian (Early Eocene), whose stratotype is the Itaboraí Formation; used especially in the context of South American land mammal age (SALMA) classification.
2013, Richard A. Fariña, Sergio F. Vizcaíno, Gerry De Iuliis, Megafauna: Giant Beasts of Pleistocene South America, University of Indiana Press, page 85, The Panriochican Subcycle includes two ages, the Itaboraian and the Riochican, summarized below.
1 more example
Carodnia is known only from the Itaboraian in both Patagonia, where it was first discovered, and Brazil, where it is better represented.
2012, John J. Flynn, Reynaldo Charrier, Darin A. Croft, Andre R. Wyss, “Cenozoic Andean Faunas”, in Bruce D. Patterson, Leonora P. Costa, editors, Bones, Clones, and Biomes, University of Chicago Press, page 62
- not comparablebiologyOf, pertaining to or occurring within the Itaboraian age.
Origin
- PortugueseItaboraí
- EnglishItaboraian
From Portuguese Itaboraí, specifically referring to the Itaboraí Formation (Formação Itaboraí), which is near the city of Itaboraí, Brazil.
More words from Portuguese
Full word history & related roots →Cite this entry
Itaboraian. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Itaboraian
“Itaboraian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Itaboraian. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “Itaboraian,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Itaboraian.
Source: Itaboraian on Wiktionary, CC BY-SA 4.0.