Definitions from Wiktionary (Hettangian)
▸ noun: (geology, paleontology) The earliest age of the Jurassic period, from 199.3–201.3Ma
▸ noun: The corresponding lowest stage of the Jurassic system, marked by the lowest strata in which the neoammonite genus Psiloceras appears.
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▸ noun: (geology, paleontology) The earliest age of the Jurassic period, from 199.3–201.3Ma
▸ noun: The corresponding lowest stage of the Jurassic system, marked by the lowest strata in which the neoammonite genus Psiloceras appears.
Similar:
Jurassic,
Hirnantian,
Toarcian,
Hauterivian,
Terreneuvian,
Kimmeridgian,
Induan,
Hadean time,
Bajocian,
Paleogene,
more...
▸ Words similar to Hettangian
▸ Usage examples for Hettangian
▸ Idioms related to Hettangian
▸ Wikipedia articles (New!)
▸ Popular adjectives describing Hettangian
▸ Words that often appear near Hettangian
▸ Rhymes of Hettangian
▸ Invented words related to Hettangian