Domatoceras is a nautiloid genus and member of the Grypoceratidae from the Pennsylvanian and Permian with a wide spread distribution. The shell of Domatoceras is evolute, coiled with whorls touching but not overlapping, some growing to be moderately large. Whorl section subquadrate, higher than wide. Sides essentially straight to slightly bowed and slightly convergent on a broad slightly arched venter on the outer rim. Shoulder are narrow but rounded. Chambers are short but lengthen slightly before the mature living chamber, septa close spaced, sutures form broad shallow lateral and ventral lobes and sharp ventro-lateral saddles. The dorsum in slightly impressed (indented) where it rides over the previous whorl. The siphuncle is subventral, located between the center and the ventral margin
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| - Domatoceras is a nautiloid genus and member of the Grypoceratidae from the Pennsylvanian and Permian with a wide spread distribution. The shell of Domatoceras is evolute, coiled with whorls touching but not overlapping, some growing to be moderately large. Whorl section subquadrate, higher than wide. Sides essentially straight to slightly bowed and slightly convergent on a broad slightly arched venter on the outer rim. Shoulder are narrow but rounded. Chambers are short but lengthen slightly before the mature living chamber, septa close spaced, sutures form broad shallow lateral and ventral lobes and sharp ventro-lateral saddles. The dorsum in slightly impressed (indented) where it rides over the previous whorl. The siphuncle is subventral, located between the center and the ventral margin (en)
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| - Domatoceras umbilicatum (en)
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| - Domatoceras umbilicatum (en)
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| - *Domatoceras atypicum (Shimansky, 1965)
*Domatoceras collinsvillense (Niko & Mapes, 2016)
*Domatoceras fredericksi (Kruglov, 1928)
*Domatoceras gardi (Murphy)
*Domatoceras gigas
*Domatoceras guangxiense (Zhao & al., 1978)
*Domatoceras hexagonum
*Domatoceras highlandense
*Domatoceras hunicum
*Domatoceras inostranzewi
*Domatoceras kleihegei
*Domatoceras latum (Shimanskiy, 1967)
*Domatoceras magister (Shimanskiy, 1967)
*Domatoceras mattoonense (Tucker, 1976)
*Domatoceras moorei (Miller, Dunbar, & Condra)
*Domatoceras mosquense
*Domatoceras northropi (Miller & Unklesbay)
*Domatoceras ogatsuense (Ehiro & Takizawa, 1989)
*Domatoceras parallelum
*Domatoceras podolskense
*Domatoceras texanum (Tucker & Mapes, 1978)
*Domatoceras tulense
*Domatoceras umbilicatus (Hyatt)
*Domatoceras walteri (Miller & Unklesbay, 1942)
*Domatoceras wortheni (Tucker, 1976) (en)
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| - Domatoceras is a nautiloid genus and member of the Grypoceratidae from the Pennsylvanian and Permian with a wide spread distribution. The shell of Domatoceras is evolute, coiled with whorls touching but not overlapping, some growing to be moderately large. Whorl section subquadrate, higher than wide. Sides essentially straight to slightly bowed and slightly convergent on a broad slightly arched venter on the outer rim. Shoulder are narrow but rounded. Chambers are short but lengthen slightly before the mature living chamber, septa close spaced, sutures form broad shallow lateral and ventral lobes and sharp ventro-lateral saddles. The dorsum in slightly impressed (indented) where it rides over the previous whorl. The siphuncle is subventral, located between the center and the ventral margin and, where known, slightly expanded so as to be longitudinally spindle shaped. (en)
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