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Polyplacophora
Sign in to saveAlso known as Polyplacophoran, Chitons, Sea cradle, chiton
Chitons () are marine molluscs of varying size in the class Polyplacophora ( ), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
OverviewAI-generated
Polyplacophora is a class within the phylum Mollusca and the kingdom Animalia. The taxon, whose common name is chitons, was described by Gray in 1821 and is currently accepted. These marine organisms possess a radula and a mouth, with algae serving as their main food source. The class has existed since the Cambrian period.
Common names for this group include Keverslakken, leddsnegler, quitón, and Käferschnecken. The taxon is documented in the Encyclopædia Britannica 11th edition. Records of Polyplacophora are held by institutions such as LACM in the United States, where 6,542 records and 299 media items are cataloged. A total of 534,850 occurrences have been recorded globally.
Synthesized by Vinony from 33 facts across 7 sources: Wikidata, GBIF, PubMed, Gbif Occ, iDigBio, WoRMS, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Species
chitons
Polyplacophora
CLASS
- KingdomAnimalia
- PhylumMollusca
- ClassPolyplacophora
多板纲（學名：Polyplacophora），又名石鱉綱（Loricata[1]），是软体动物门的一个纲，約有900多個物種[2]。本綱物種生活於海中，當中大部分的物种生活在潮间带和潮下带浅水区的岩石上，但也有一些物种类生活在较深海域[3]。其特徵為，內圈一般都有八片緊鄰排列之硬殼，外圈則是肌肉組織。多板纲包括各种石鳖，常可在退潮后的潮间带岩石上见到。可以食用。 分類 現時本綱物種的分類基本上依從Sirenko (2006)的分類，大致如下[4]： 多板纲 Polyplacophora de Blainville, 1816 古石鱉亞綱 Paleoloricata Bergenhayn, 1955 Order Chelodida Bergenhayn, 1943 Order Septemchitonida Bergenhayn, 1955 新石鱉亞綱 Neoloricata Bergenhayn, 1955 石鳖目 Chitonida Thiele, 1909：包括多板纲中绝大多数的种类，例如：花斑锉石鳖。 毛肤石鳖亚目 Acanthochitonina Superfamily Cryptoplacoidea H. Adams & A. Adams, 1858 毛肤石鳖科 Acanthochitonidae Pilsbry, 1893 Family Cryptoplacidae（英语：Cryptoplacidae） H. Adams & A. Adams, 1858 Family Hemiarthridae Sirenko, 1997 Family Makarenkoplacidae Sirenko & Dell'Angelo, 2015 † Superfamily Mopalioidea Dall, 1889 Family Choriplacidae Ashby, 1928 Family Lepidochitonidae Iredale, 1914 鬃毛石鳖科 Mopaliidae Dall, 1889 Family Schizoplacidae Bergenhayn, 1955 Family Tonicellidae Simroth, 1894 石鳖亞目 Chitonina（英语：Chitonina） Superfamily Chitonoidea Rafinesque, 1815 Family Callistoplacidae Pilsbry, 1893 Family Callochitonidae Plate, 1901 Family Chaetopleuridae（英语：Chaetopleuridae） Plate, 1899 石鱉科 Chitonidae Rafinesque, 1815 薄石鱉科 Ischnochiton
via GBIF
Research
240 papers- The Cenozoic European Polyplacophora (Mollusca).Zootaxa · 2025Dellangelo B, Sosso M, Taviani MDOI: 10.11646/zootaxa.5704.1.1
- From Polyplacophora to Cephalopoda: comparative analysis of nitric oxide signalling in mollusca.ReviewActa biologica Hungarica · 1995Moroz LL, Gillette R
- Chitons of the genus Lepidochitona (Mollusca: Polyplacophora) in the Indian Ocean and ordering of species compositions of some genera of the subfamily Tonicellinae.ReviewZootaxa · 2023Sirenko BDOI: 10.11646/zootaxa.5228.3.4
- A mitogenomic phylogeny of chitons (Mollusca: Polyplacophora).BMC evolutionary biology · 2020Irisarri I, Uribe JE, Eernisse DJ et al.DOI: 10.1186/s12862-019-1573-2
- A Chromosome-Level Genome Assembly of Chiton Acanthochiton rubrolineatus (Chitonida, Polyplacophora, Mollusca).Animals : an open access journal from MDPI · 2024Qu J, Lu X, Tu C et al.DOI: 10.3390/ani14213161
- Late Pleistocene Red Sea Mollusca: 1. Polyplacophora.Zootaxa · 2020Dell'angelo B, Landau BM, Sosso M et al.DOI: 10.11646/zootaxa.4772.3.1
- Complete mitochondrial genome of Acanthochitona defilippii (Polyplacophora: Chitonida) from South Korea.Mitochondrial DNA. Part B, Resources · 2024Kim IH, Shin CR, Kim G et al.DOI: 10.1080/23802359.2024.2386403
- Chitons of the genus Cryptoplax (Mollusca: Polyplacophora) from the Spratly Islands, South China Sea.Zootaxa · 2024Sirenko BI, Saito H, Nguyen TTDOI: 10.11646/zootaxa.5492.1.3
via PubMed
~26 min read
Encyclopedic overview
18 sectionsContents
- Habitat
- Morphology
- Shell
- Girdle ornament
- Internal anatomy
- Senses
- Homing ability
- Culinary uses
- Life habits
- Reproduction and life cycle
- Predators
- Evolutionary origins
- History of scientific investigation
- Etymology
- Taxonomy
- Phylogeny
- References
- External links
Chitons () are marine molluscs of varying size in the class Polyplacophora ( ), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
They are also sometimes known as sea cradles, coat-of-mail shells, or suck-rocks, or more formally as loricates, polyplacophorans, and occasionally as polyplacophores.
Excerpted from Wikipedia’s “Polyplacophora” article, available under the CC BY-SA 4.0 licence.