Itaboraian
词形变化
the Itaboraian
释义与例句
adj.
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1.
Of, pertaining to or occurring within the Itaboraian age.
生物 地质
name
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1.
A 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.
生物 地质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.
词源
From Portuguese Itaboraí, specifically referring to the Itaboraí Formation (Formação Itaboraí), which is near the city of Itaboraí, Brazil.
来源:wiktionary