The Aalenian (pronEng|ɑːˈliːniən) is a subdivision of the
The stage takes its name from the town of
Invertebrate Fauna
Ammonitids
References
Wikimedia Foundation. 2010.
aalenian — AALENIÁN, Ă, aalenieni, e, s.n., adj. 1. s.n. Primul etaj al jurasicului mediu sau ultimul etaj al jurasicului inferior. 2. adj. Care aparţine aalenianului (1), privitor la aalenian. [pr.: a a le ni an] – Din fr. aalénien. Trimis de cata,… … Dicționar Român
Aalenian — 1. noun A subdivision of the Middle Jurassic period. 2. adjective Of or pertaining to the Aalenian period … Wiktionary
Aalenian Stage — ▪ geology lowest of the four divisions of the Middle Jurassic Series, representing all rocks formed worldwide during the Aalenian Age, which occurred between 175.6 million and 171.6 million years ago during the Jurassic Period. The Aalenian … Universalium
aalenian — The oldest stage of the Middle Jurassic … Dictionary of automotive terms
Aalenian — … Useful english dictionary
Jurassic — Period 199.6–145.5 million years ago … Wikipedia
Middle Jurassic — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith … Wikipedia
Pliensbachian — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith … Wikipedia
Oxfordian (stage) — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith … Wikipedia
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … Wikipedia
