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''Titanites'' is an extinct
Species of the genus ''Titanites'' can reach large sizes, with a diameter over for ''Titanites giganteus'' and for ''T. anguiformis''. Much larger species, ''Titanites occidentalis'' with estimated diameter about is reassigned to genus '' Corbinites''. They were fast-moving
Universal Biological Indexer
The Paleobiology Database
Jurassic ammonites Jurassic animals of Asia Perisphinctoidea Ammonitida genera {{ammonitina-stub
ammonite
Ammonoids are extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish (which comprise the clade Coleoidea) than they are to nautiluses (family N ...
cephalopod
A cephalopod is any member of the molluscan Taxonomic rank, class Cephalopoda (Greek language, Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral symm ...
genus within the family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Dorsoplanitidae, that lived during the late Tithonian
In the geological timescale, the Tithonian is the latest age (geology), age of the Late Jurassic Epoch and the uppermost stage (stratigraphy), stage of the Upper Jurassic Series. It spans the time between 149.2 ±0.7 annum, Ma and 143.1 ±0.6 (mi ...
of the Late Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...
. Its fossils have been found in Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
and the United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
.
Description
Species of the genus ''Titanites'' can reach large sizes, with a diameter over for ''Titanites giganteus'' and for ''T. anguiformis''. Much larger species, ''Titanites occidentalis'' with estimated diameter about is reassigned to genus '' Corbinites''. They were fast-moving nektonic
Nekton or necton (from the ) is any aquatic organism that can actively and persistently propel itself through a water column (i.e. swimming) without touching the bottom. Nektons generally have powerful tails and appendages (e.g. fins, pleopods ...
carnivores.
See also
*Cephalopod size
Cephalopods, which include squids and octopuses, vary enormously in size. The smallest are only about long and weigh less than at maturity, while the giant squid can exceed in length and the colossal squid weighs close to half a tonne (), makin ...
References
Universal Biological Indexer
The Paleobiology Database
Jurassic ammonites Jurassic animals of Asia Perisphinctoidea Ammonitida genera {{ammonitina-stub