Standard Lemma guide

Itaboraian

adj · name · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

adj

Meaning 1

Of, pertaining to or occurring within the Itaboraian age.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: biology, geography, geology, history, human-sciences, natural-sciences, paleontology, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

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.

Definition source: English Wiktionary via Wiktextract

Topics: biology, geography, geology, history, human-sciences, natural-sciences, paleontology, sciences

Examples

  • 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.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Portuguese Itaboraí, specifically referring to the Itaboraí Formation (Formação Itaboraí), which is near the city of Itaboraí, Brazil.