Overview
Brief Summary
There are six living species of nautilus. They are called “living fossils” because they have existed for about 550 million years. Nautiluses live in shells that are divided into chambers. As they grow, they move into a new, larger chamber and close the old one.
- “Nautilus.” Wikipedia, the Free Encyclopedia. Available from: http://en.wikipedia.org/wiki/Nautilus
- “Nautilidae”. Encyclopedia of Life, available from: http://www.eol.org/pages/2314/entries/33331117/details
- Young, Richard E. 2010. Nautiloidea. Nautilidae Blainville 1825. Pearly nautiluses. Version 15 August 2010 (under construction). http://tolweb.org/Nautilidae/19397/2010.08.15 in The Tree of Life Web Project, http://tolweb.org/
© Sebastian Velvez
Supplier: Life on Earth
Unreviewed
Ecology
Habitat
Water temperature and chemistry ranges based on 14 samples.
Environmental ranges
Depth range (m): 150 - 475
Temperature range (°C): 9.138 - 16.374
Nitrate (umol/L): 8.806 - 30.508
Salinity (PPS): 34.531 - 35.312
Oxygen (ml/l): 1.675 - 4.409
Phosphate (umol/l): 0.812 - 2.286
Silicate (umol/l): 4.233 - 38.274
Graphical representation
Depth range (m): 150 - 475
Temperature range (°C): 9.138 - 16.374
Nitrate (umol/L): 8.806 - 30.508
Salinity (PPS): 34.531 - 35.312
Oxygen (ml/l): 1.675 - 4.409
Phosphate (umol/l): 0.812 - 2.286
Silicate (umol/l): 4.233 - 38.274
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Molecular Biology and Genetics
Molecular Biology
Statistics of barcoding coverage
| Specimen Records: | 422 | Public Records: | 4 |
| Specimens with Sequences: | 421 | Public Species: | 2 |
| Specimens with Barcodes: | 421 | Public BINs: | 2 |
| Species: | 2 | ||
| Species With Barcodes: | 2 | ||
© Barcode of Life Data Systems
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Barcode data
© Barcode of Life Data Systems
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Wikipedia
Nautilus (genus)
Nautilus is a genus of cephalopods in the family Nautilidae. Species in this genus differ significantly in terms of morphology from those placed in the sister taxon Allonautilus.[1] The oldest fossils of the genus are known from the Late Eocene Hoko River Formation, in Washington State and from Late-Eocene to Early Oligocene sediments in Kazakhstan.[2] The oldest fossils of the modern species Nautilus pompilius are from Early Pleistocene sediments off the coast of Luzon in the Philippines.[2]
The common term nautilus usually refers to any extant members of the Nautilidae family.
Species
Extinct species are denoted with a dagger (†).
- N. belauensis
- †N. cookanum
- N. macromphalus
- N. pompilius (type)
- N. p. pompilius
- N. p. suluensis
- †N. praepompilius
- N. stenomphalus
See also
References
- ^ Ward, P.D. & W.B. Saunders 1997. Allonautilus: a new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida. Journal of Paleontology 71(6): 1054–1064.
- ^ a b Wani, R.; et al (2008). "First discovery of fossil Nautilus pompilius (Nautilidae, Cephalopoda) from Pangasinan, northwestern Philippines". Paleontological Research 12 (1): 89–95. doi:10.2517/1342-8144(2008)12[89:FDOFNP]2.0.CO;2.
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Wikipedia
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