Truyolsoceras is an Upper Devonian ammonite (subclass Ammonoidea) included in the goniatitid subfamily Aulatornoceratinae. The shell is involute, lenticular, with a narrow umbilicus and moderately high aperture. The adventitious lobe of the suture, which lies between the ventral and lateral lobes, is rounded.
| Truyolsoceras Temporal range: Late Devonian
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Goniatitida |
| Family: | †Tornoceratidae |
| Subfamily: | †Aulatornoceratinae |
| Genus: | †Truyolsoceras Montesinos, 1987 |
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References edit
- Truyolsoceras in GONIAT 6/10/12
- The Paleobiology Database Truyolsoceras entry accessed 10 June 2012
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