Dactylioceras
Sign in to saveDactylioceras was a widespread genus of ammonites from the Lower Jurassic period, approximately 180 million years ago (mya).Like many other ammonites, the genus Dactylioceras is extremely important in biostratigraphy, being a key index fossil for identifying their region of the Jurassic. It had a nearly cosmopolitan distribution during the time it existed.
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Encyclopedic overview
7 sectionsContents
- Etymology
- Description
- Ecology
- Distribution
- Subgenera
- Species
- References
Dactylioceras was a widespread genus of ammonites from the Lower Jurassic period, approximately 180 million years ago (mya).Like many other ammonites, the genus Dactylioceras is extremely important in biostratigraphy, being a key index fossil for identifying their region of the Jurassic. It had a nearly cosmopolitan distribution during the time it existed.
==Etymology== The name Dactylioceras comes from the Greek dactyl, meaning “finger”, and keras, meaning "horn" and refers to the shell's branching ribs.
Excerpted from Wikipedia’s “Dactylioceras” article, available under the CC BY-SA 4.0 licence.