Acutichiton

Acutichiton Temporal range: Lower Devonian– Carboniferous[1][2] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Polyplacophora
Order:	Lepidopleurida
Family:	Leptochitonidae
Subfamily:	†Helminthochitoninae
Genus:	†Acutichiton Hoare, R.D.; Sturgeon, M.T.; Hoare, T.B. (1972). "Middle Pennsylvanian (Allegheny Group) Polyplacophora from Ohio". Journal of Paleontology. 46 (5): 675–680. JSTOR 1303024.
Species
A. PYRMIDALUS Hoare, R.D.; Sturgeon, M.T.; Hoare, T.B. (1972). "Middle Pennsylvanian (Allegheny Group) Polyplacophora from Ohio". Journal of Paleontology. 46 (5): 675–680. JSTOR 1303024. A. PANNUCEUS Hoare, R.D.; Mapes, R.H. (1985). "A New Species of Pennsylvanian Polyplacophora (Mollusca) from Texas". Journal of Paleontology. 59 (5): 1324–1326. JSTOR 1305023. A. ALLYNSMITHI HOARE, R. D., R. H. MAPES, AND D. E. ATWATER. 1983. Pennsylvanian Polyplacophora (Mollusca) from Oklahoma and Texas. Journal of Paleontology, 57:992-1000 A. depressolatus Hoare, Richard D. (June 1999). "New Occurrences and a New Species of Pennsylvanian Polyplacophorans (Mollusca) in Ohio". The Ohio Journal of Science. 99 (3): 49–52. hdl:1811/23819. A. gracilis Hoare, R. D.; Plas, LEO P.; Yancey, T. E. (2002). "Permian Polyplacophora (Mollusca) from Nevada, Utah, and Arizona". Journal of Paleontology. 76 (2): 256. doi:10.1666/0022-3360(2002)076<0256:PPMFNU>2.0.CO;2. ISSN 0022-3360. A. nevadensis Hoare, R. D.; Plas, LEO P.; Yancey, T. E. (2002). "Permian Polyplacophora (Mollusca) from Nevada, Utah, and Arizona". Journal of Paleontology. 76 (2): 256. doi:10.1666/0022-3360(2002)076<0256:PPMFNU>2.0.CO;2. ISSN 0022-3360. A. etheridgei Smith, Allyn G.; Hoare, Richard D. (Feb 25, 1987). PALEOZOIC POLYPLACOPHORA: A CHECKLIST AND BIBLIOGRAPHY. Occasional Papers of the California Academy of Sciences. San Francisco: California Academy of Sciences. ASIN B00070YQGM. ISSN 0068-5461.

Acutichiton is among the most primitive genera of Neoloricate chitons.[3] Acutichiton became extinct during the Carboniferous period.[1] Articulated specimens are known.[4]

References

1. van Belle, R. A. (1981). Catalogue of Fossil Chitons. ISBN 90 6279 018 6.
2. Hoare, R. D.; Farrell, J. R. (2004). "Lower Devonian Polyplacophora from New South Wales, Australia". Palaeontology. 47 (6): 1495. Bibcode:2004Palgy..47.1495H. doi:10.1111/j.0031-0239.2004.00415.x.
3. Sigwart, J. D.; Sutton, M. D. (Oct 2007). "Deep molluscan phylogeny: synthesis of palaeontological and neontological data". Proceedings of the Royal Society B: Biological Sciences. 274 (1624): 2413–2419. doi:10.1098/rspb.2007.0701. PMC 2274978. PMID 17652065. For a summary, see "The Mollusca". University of California Museum of Paleontology. Retrieved 2 October 2008.
4. Hoare, R. D; Mapes, R. H (1989). "Articulated Specimen of Acutichiton allynsmithi (Mollusca, Polyplacophora) from Oklahoma". Journal of Paleontology. 63 (2): 251. Bibcode:1989JPal...63..251H. doi:10.1017/S0022336000019302. JSTOR 1305363. S2CID 130857296.