| 词条 | Edaphoceras |
| 释义 |
| fossil_range = {{Geological range|Mississippian}} | taxon = Edaphoceras | authority = Hyatt, 1884 }} Edaphoceras is a genus of koninckioceratid nautilids from the Mississippian of North America, named by Hyatt, 1884, with depressed whorls just in contact. The shell, as typical for the family, is evolute; whorl section is fusiform with broadly rounded venter and dorsum meeting at a narrow angle on either side. Its suture has a distinct ventral and dorsal lobe and an angular lateral saddle. The siphuncle is small and near central. References
1 : Prehistoric nautiloid genera |
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