Nautilus
Related Category: Zoology: Invertebrates
cephalopod mollusk belonging to the sole surviving genus (Nautilus) of a subclass that flourished 200 million years ago, known as the nautiloids.
Nautilus (from Greek nautilos, 'sailor') is the common name of any marine creatures of the cephalopod family Nautilidae, the sole family of the suborder Nautilina.
Nautilus pompilus
Video
Click Here to See a Chambered Nautilus Eating a Crab
Species Information
Exhibit Name and Location ...
Nautiluses first appeared about 500 million years ago during the Cambrian Explosion-they were jet-propelling themselves through ancient seas 265 million years before dinosaurs inhabited the Earth.
The emperor nautilus, Nautilus pompilius pompilius (Linnaeus, 1758), reaches about 20 cm in length. The spiral shell of this chambered nautilus is thin and smooth with a brown and white pattern.
This species is probably the most common nautilus.
The chambered nautilus also has small tentacles that it uses to swim or pull itself along rocks.
Nautilus (Nautilus pompilius)
Information on this species is currently being researched and written and will appear here shortly... More 11 Images 4 Videos ...
Nautiluses
Giant cuttlefish (species)
Prehistoric life
All Prehistoric Cephalopods ...
Nautilus - Received J from someone somewhere
Q: Where would I find information about the systems of the nautilus?
A: The Cephalopod Page is a good site with a lot of information.
Click here for information on Australian Nautilus.
Nautilus subtruncatus fossil
Schindewolf in1942 proposed that the Nautilida evolved from straight-shelled ("Orthoceras") nautiloids, which gradually developed a curved shell through transitional forms like the Ordovician Lituites.
Nautilus Environmental
Comprehensive Analysis of Enhancements and Impacts Associated with Discharge of Treated Effluent from the Ventura Water Reclamation Facility to the Santa Clara River Estuary
15% ...
chambered nautilus (Nautilus nautilus)
chocolate chip sea star (Protoreastor nodosus)
christmas tree worm (Spirobranchus giganteus)
cleaner shrimp (Lysmata amboinesis)
closed brain coral (Favites sp.)
common urchin (Echinometra mathaei) ...
Assuming that these ancestral forms resembled the existing Nautilus in their internal anatomy, they had two pairs of renal ducts and one pair of genital ducts, which would apparently indicate, not a single metamere or unsegmented body, ...
Octopuses, squids, cuttlefish and the chambered nautilus belong to class Cephalopoda, which means 'head foot'.
It was exciting to find nautilus shells washed up on the beach. I put this one up on a marker stick. We thought this achieved a sort of "Lord of the Flies" look.
The first usage of the term "torpedo" to refer to a naval explosive was by the inventor Robert Fulton who used the word for the towed gunpowder charge used by his submarine Nautilus in 1800-1805 to demonstrate that it could sink warships.
Cephlapodia: Common Cuttlefish (Sepia officinalis), Giant Octopus (Octopus dolfeini), Nautiluses, Paper Nautilus, Squids, Two-Spotted octopus (Octopus bimaculoides) ...
The major invertebrate phyla are porifera (sponges), platyhelminthes (flatworms), nematoda (round worms), annelida (earthworms, marine worms and leeches), cnidaria (jellyfish, coral and sea anemones), mollusca (octopus, nautilus, squid, slugs, ...
Coloration reflects the octopus mood. White is for fear, red is for anger, and brown is the usual color. The octopuses lack any internal shell. Their closest relatives are the chambered nautilus, cuttlefish and squids.
 See also: Octopus, Cephalopod, Squid, Cuttlefish, Shell
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