Nautilus praepompilius: Difference between revisions
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{{Short description|Extinct species of mollusc}} |
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{{Taxobox |
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{{Speciesbox |
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| color = pink |
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| fossil_range = {{Geological range|Late Paleocene|Oligocene}} |
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| image = Growth_in_shell_circumference_and_diameter_of_Nautilus_pompilius.png |
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| image = |
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| regnum = [[Animal]]ia |
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| phylum = [[Mollusca]] |
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| classis = [[Cephalopod]]a |
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| ordo = [[Nautilus|Nautilida]] |
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| familia = [[Nautilus|Nautilidae]] |
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| genus = ''[[Nautilus (genus)|Nautilus]]'' |
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| binomial = †''Nautilus praepompilius'' |
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'''''Nautilus praepompilius''''' is an [[extinction|extinct]] species of [[nautilus]]. It lived |
'''''Nautilus praepompilius''''' is an [[extinction|extinct]] species of [[nautilus]]. It lived from the [[Late Paleocene]] through [[Oligocene]] [[Epoch (reference date)|epoch]]s. The first [[fossil]] specimens discovered in the [[Late Eocene]] to [[Oligocene]]-aged [[Chegan Formation]] of [[Kazakhstan]]: an additional, older specimen was found in the Late or Latest Paleocene-aged [[Pebble Point]] Formation in [[Victoria, Australia]].<ref name="flannery">Ward, P. D., et al. "The Paleocene cephalopod fauna from pebble point, Victoria (Australia)-fulcrum between two Eras." (2016): 391.</ref> ''N. praepompilius'' has been grouped into a single [[genus]] together with extant species based on their shared shell characters. It is morphologically closest to ''[[Chambered Nautilus|N. pompilius]]'', hence the name. The nepionic constriction shows that the hatching size was approximately 23 mm, close to that for ''N. pompilius'' (around 26 mm).<ref>Ward, P.D. & W.B. Saunders 1997. [https://www.jstor.org/stable/1306604 ''Allonautilus'': a new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida]. ''Journal of Paleontology'' '''71'''(6): 1054–1064.</ref> ''N. praepompilius'', along with [[Nautilus cookanum|aff. ''N. cookanum'']] fossils from the late Eocene [[Hoko River Formation]] in [[Washington (U.S. state)|Washington state]] are the oldest occurrences of the genus.<ref name="Ryoji2008">{{cite journal |last1=Ryoji |first1=W. |year=2008 |title= First discovery of fossil ''Nautilus pompilius'' (Nautilidae, Cephalopoda) from Pangasinan, northwestern Philippines |journal= Paleontological Research |volume=12 |issue=1 |pages=89–95 |doi= 10.2517/1342-8144(2008)12[89:FDOFNP]2.0.CO;2|display-authors=etal}}</ref> |
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==References== |
==References== |
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{{Reflist}} |
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{{Taxonbar|from=Q3758437}} |
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* [http://www.findarticles.com/p/articles/mi_qa3790/is_199711/ai_n8768905/pg_2 ''Allonautilus'': A new genus of living nautiloid cephalopod and its bearing on phylogeny of the Nautilida] |
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[[Category:Prehistoric nautiloids]] |
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{{cephalopod-stub}} |
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[[Category:Paleocene molluscs]] |
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[[Category:Eocene molluscs]] |
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[[Category:Oligocene molluscs]] |
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[[Category:Paleogene animals of Asia]] |
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[[Category:Paleogene animals of Australia]] |
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[[Category:Fossil taxa described in 1957]] |
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{{paleo-Nautiloidea-stub}} |
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Latest revision as of 05:59, 15 December 2023
| Nautilus praepompilius Temporal range:
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | Nautiloidea |
| Order: | Nautilida |
| Family: | Nautilidae |
| Genus: | Nautilus |
| Species: | N. praepompilius
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| Binomial name | |
| Nautilus praepompilius Shimansky, 1957
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Nautilus praepompilius is an extinct species of nautilus. It lived from the Late Paleocene through Oligocene epochs. The first fossil specimens discovered in the Late Eocene to Oligocene-aged Chegan Formation of Kazakhstan: an additional, older specimen was found in the Late or Latest Paleocene-aged Pebble Point Formation in Victoria, Australia.[1] N. praepompilius has been grouped into a single genus together with extant species based on their shared shell characters. It is morphologically closest to N. pompilius, hence the name. The nepionic constriction shows that the hatching size was approximately 23 mm, close to that for N. pompilius (around 26 mm).[2] N. praepompilius, along with aff. N. cookanum fossils from the late Eocene Hoko River Formation in Washington state are the oldest occurrences of the genus.[3]
References
[edit]- ^ Ward, P. D., et al. "The Paleocene cephalopod fauna from pebble point, Victoria (Australia)-fulcrum between two Eras." (2016): 391.
- ^ 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.
- ^ Ryoji, W.; 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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