Asthenoceras
Sign in to saveAsthenoceras is a genus of ammonoid from the Middle Jurassic (Lower Bajocian) with dwarfish, evolute, smooth, compressed, discoidal, strongly keeled shell. Asthenoceras belongs to the Sonniniidae and may be a subgenus of the Lower Jurassic (Upper Toarcian) Grammoceras.
Wikidata facts
- Parent taxon
- Hildoceratidae
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- taxon name
- Asthenoceras
- taxon rank
- genus
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Asthenoceras is a genus of ammonoid from the Middle Jurassic (Lower Bajocian) with dwarfish, evolute, smooth, compressed, discoidal, strongly keeled shell. Asthenoceras belongs to the Sonniniidae and may be a subgenus of the Lower Jurassic (Upper Toarcian) Grammoceras.
==References==
Excerpted from Wikipedia’s “Asthenoceras” article, available under the CC BY-SA 4.0 licence.