Parapassaloteuthis | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
(unranked): | Belemnoidea |
Genus: | Parapassaloteuthis |
Parapassaloteuthis is a genus of belemnite, an extinct group of cephalopods. [1]
A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
A cephalopod is any member of the molluscan class Cephalopoda such as a squid, octopus or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles modified from the primitive molluscan foot. Fishermen sometimes call them inkfish, referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology.
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Conoteuthis is a genus of belemnite, an extinct group of cephalopods.
Curtohibolites is a genus of belemnite, an extinct group of cephalopods.
Dimitobelus is a genus of belemnite, an extinct group of cephalopods.
Diplobelus is a genus of belemnite, an extinct group of cephalopods.
Hastites is a genus of belemnite, an extinct group of cephalopods.
Hibolites is a genus of belemnite, an extinct group of cephalopods.
Holcobelus is a genus of belemnite, an extinct group of cephalopods.
Mesoteuthis is a genus of belemnite, an extinct group of cephalopods.
Neohibolites is a genus of belemnite, an extinct group of cephalopods.
Passaloteuthis is a genus of belemnite, an extinct group of cephalopods.
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Produvalia is a genus of belemnite, an extinct group of cephalopods.
Youngibelus is a genus of belemnite, an extinct group of cephalopods.
Belemnites is a genus of an extinct group of cephalopods belonging to the order Belemnitida. These cephalopods existed in the Early Jurassic period from the Hettangian age to the Toarcian age (175.6–183.0). They were fast-moving nektonic carnivores.
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