Rineceras
Encyclopedia
Rhineceras is an extinct genus from the nautilid
family Trigonoceratidae
which is part of the Trigonocerataceae
, that lived during the Mississippian Period in the late Paleozoic.
Rhineceas is described in the Treatise
, in Kummel, 1964, as being evolute with volutions in contact but not deeply impressed at maturity and the whorl section elliptical and depressed; the conch (shell) bearing prominent longitudinal ridges , which may be spinose. Rhinceras is illustrated , fig. 311-4 p. K429, as a closely coiled gyrocone of about two volutions, whorls not in contact. Longitudinal ridges (ribs) are shown. The illustration is designated as R. propinquum (DeKoninck), the type.
Rhineceras is similar to Pararineceras, Thrincoceras, Discitoceras
, and Chouteauoceras
in that all are covered by numerous longitudinal ridges.
Rhineceras was named by Hyatt in 1893. It is based on Gyroceras propinquum DeKoninck, 1880, found in the Lower Carboniferous of Belgium.
Nautilida
The Nautilida constitute a large and diverse order of generally coiled nautiloid cephalopods that began in the mid Paleozoic and continues to the present with a single family, the Nautilidae which includes two genera, Nautilus and Allonautilus, with six species...
family Trigonoceratidae
Trigonoceratidae
The Trigonoceratidae is a family of coiled nautiloid cephalopods that lived during the period from the Early Carboniferous to the Early Permian.-Diagnosis:...
which is part of the Trigonocerataceae
Trigonocerataceae
The Trigonocerataceae is a superfamily within the Nautilida that ranged from the Devonian to the Triassic that is thought to have contained the source for the Nautilaceae in which Nautilus is found....
, that lived during the Mississippian Period in the late Paleozoic.
Rhineceas is described in the Treatise
Treatise on Invertebrate Paleontology
The Treatise on Invertebrate Paleontology published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and covering every phylum, class, order, family, and genus of fossil and...
, in Kummel, 1964, as being evolute with volutions in contact but not deeply impressed at maturity and the whorl section elliptical and depressed; the conch (shell) bearing prominent longitudinal ridges , which may be spinose. Rhinceras is illustrated , fig. 311-4 p. K429, as a closely coiled gyrocone of about two volutions, whorls not in contact. Longitudinal ridges (ribs) are shown. The illustration is designated as R. propinquum (DeKoninck), the type.
Rhineceras is similar to Pararineceras, Thrincoceras, Discitoceras
Discitoceras
Discitoceras is an extinct genus of nautiloid from the Lower Carboniferous....
, and Chouteauoceras
Chouteauoceras
Chouteauceras is an openly coiled, gyroconic, nautiloid cephalopod from the Mississippian of North America belonging to the Nautilid family Trigonoceratidae, and superfamily Trigonocerataceae....
in that all are covered by numerous longitudinal ridges.
Rhineceras was named by Hyatt in 1893. It is based on Gyroceras propinquum DeKoninck, 1880, found in the Lower Carboniferous of Belgium.
References
- Kummel, B, 1964; Nautiloidea- Nautilida; Treatise on Invertebrate Paleontology Part K Nautiloidea; Geological Society of America and University of Kansas Press.