Faster access than browser!
10 relations: Animal, Cephalopod, Cleavage (embryo), Evolute, Lituitidae, Mollusca, Nautiloid, Ophioceras, Ordovician, Tarphycerida.
Animal
Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.
New!!: Xainzanoceras and Animal · See more »
Cephalopod
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet") such as a squid, octopus or nautilus.
New!!: Xainzanoceras and Cephalopod · See more »
Cleavage (embryo)
In embryology, cleavage is the division of cells in the early embryo.
New!!: Xainzanoceras and Cleavage (embryo) · See more »
Evolute
In the differential geometry of curves, the evolute of a curve is the locus of all its centers of curvature.
New!!: Xainzanoceras and Evolute · See more »
Lituitidae
The Lituitidae are a family of evolved tarphycerids characterized by a long orthoconic section that follows a coiled juvenile portion at the apex, along with a generally tubular siphuncle, which like that of the barrandeocerids is composed of thin connecting rings.
New!!: Xainzanoceras and Lituitidae · See more »
Mollusca
Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.
New!!: Xainzanoceras and Mollusca · See more »
Nautiloid
Nautiloids are a large and diverse group of marine cephalopods (Mollusca) belonging to the subclass Nautiloidea that began in the Late Cambrian and are represented today by the living Nautilus and Allonautilus.
New!!: Xainzanoceras and Nautiloid · See more »
Ophioceras
Ophioceras is a genus of closely coiled tarphycerid nautiloid cephalopods, the sole representatives of the family Ophidioceratidae, characterized by an evolute shell with narrow, subrounded, annulated whorls and a subcentral siphuncle composed of thin connecting rings that show no evidence of layering.
New!!: Xainzanoceras and Ophioceras · See more »
Ordovician
The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.
New!!: Xainzanoceras and Ordovician · See more »
Tarphycerida
The Tarphycerida were the first of the coiled cephalopods, found in marine sediments from the Lower Ordovician (middle and upper Canad) to the Middle Devonian.
New!!: Xainzanoceras and Tarphycerida · See more »
