肢口綱
肢口綱（學名：）是一綱水生的螯肢亞門，其下包括了鱟。現存的肢口綱只剩一個劍尾目4個物種，分別為中華鱟、南方鱟、美洲鱟、圓尾鱟，但有大量主要屬於古生代的化石物種。
肢口綱 | |
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| 美洲鱟 Limulus polyphemus | |
科学分类  | |
| 界： | 动物界 Animalia |
| 门： | 节肢动物门 Arthropoda |
| 演化支： | 蛛形类 Arachnomorpha |
| 亚门： | 螯肢亚门 Chelicerata |
| 演化支： | 真螯肢类 Euchelicerata |
| 演化支： | 頭胸足類 Prosomapoda |
| 纲： | 肢口纲 Merostomata Woodward, 1866 |
| 目 | |
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肢口綱是螯肢亞門之中唯一擁有複眼的，而蛛形綱則失去了節肢動物祖先發展完好的側前複眼。
史前的板足鱟綱（Eurypterida）曾被归类為本綱之下的一個亞綱，但後來被許多學者認為更接近蛛形綱，因而將板足鱟綱分出去獨立成為一綱，與蛛形綱另組成硬器類（Sclerophorata）或Cryptopneustida。[1][2]
詞源
肢口綱的學名“Merostomata”是從希臘文 μηρός（meros，“大腿”）和στόμα（stoma，“口”）組合而來，因本綱動物的口器附近擁有附肢而得名。
下属分类
本纲包括以下目：[3]
- 剑尾目 Xiphosurida
- Adelophthalmidae
- Brachyopterellidae
- Bunodidae
- Carcinosomatidae
- Chasmataspidae
- Cyrtoctenidae
- Diploaspididae
- Dolichopteridae
- Drepanopteridae
- Erieopteridae
- Euproopidae
- Eurypteridae
- Hardieopteridae
- Heteroaspididae
- Heterolimulidae
- 希氏鲎科 Hibbertopteridae
- Hughmilleriidae
- Jaekelopteridae
- Kokomopteridae
- Lanarkopteridae
- Laurieopteridae
- Liomesaspidae
- Liomesaspididae
- Megalograptidae
- Mixopteridae
- Moravuridae
- Moselopteridae
- Mycteropidae
- Parastylonuridae
- Pterygotidae
- Rhenopteridae
- Slimoniidae
- Stylonuridae
- Weinberginidae
- Woodwardopteridae
- Aglaspidichnus Radwanksi & Roniewicz, 1967
- Anderella Moore, McKenzie & Lieberman, 2007
- Anthraconectes Meek & Worthen, 1868
- Baltoeurypterus Størmer, 1973
- Beaumontia David, 1928
- Belinuropsis Matthew, 1909
- Bembicosoma Laurie, 1900
- Bembycosoma Laurie, 1900
- Bifarius Tasch, 1961
- Borchgrevinkium Novojilov, 1958
- Brachopterella
- Bunaia Clarke, 1920
- Camanchia Moore, Briggs, Braddy & Shultz, 2011
- Caragassia Vologdin, 1965
- Carbonolimulus Hong, 1985
- Chasmataspis Caster & Brooks, 1956
- Curviramus Ruedemann, 1935
- Cyamocephalus Currie, 1927
- Dibasterium Briggs, Siveter, Siveter, Sutton, Garwood & Legg, 2012
- Dibasterium durgae[4]
- Dickinsonia Tasch, 1963
- Dipeltis Packard, 1885
- Dvulikiaspis Marshall, Lamsdell, Shpinev & Braddy, 2013
- Elleria Raymond, 1944
- Elmocephalus Tasch, 1964
- Eocarcinsoma Caster & Kjellesvig-Waering, 1964
- Eurypterella Matthew, 1889
- Eusarcus Grote & Pitt, 1875
- Exoculatus Pirozhnikov, 1966
- Gdowia Yanishevsky, 1950
- Glaucodes Pruvost, 1924
- Grossopterus Størmer, 1935
- Habcyne Meyer, 1844
- Hastimima Seward, 1909
- Heteroaspis Stormer, 1972
- 侯氏翅鲎属 Holmipterus Kjellesvig-Waering, 1979
- Hypatocephala Tasch, 1961
- Ikeyia Vologdin, 1965
- Iyaia Vologdin, 1965
- Kasibelinurus Pickett, 1993
- Kioeria Størmer, 1933
- Lagrandella Eldredge, 1974
- Laurieopterus
- Legrandella Eldredge, 1974
- Limulicubichnus Miller, 1982
- Limulites Krueger, 1823
- Mazonipterus Kjellesvig-Waering, 1963
- Nahlyostaspis Marshall, Lamsdell, Shpinev & Braddy, 2013
- Neobelinuropsis Eller, 1938
- Neolimulus Woodward, 1868
- Onychopterella Størmer, 1951
- Orcanopterus Stott, Tetlie, Braddy, Nowlan, Glasser & Devereux, 2005
- Palatinaspis Malz & Poschmann, 1993
- Paraeurypterus Lamsdell, Hosgör & Selden, 2013
- Parahughmillera Kjellesvig-Waering, 1961
- Parka Fleming, 1864
- Pasternakevia Selden & Drygant, 1987
- Pentlandopterus Lamsdell, Hosgör & Selden, 2013
- Permolimulinella Tasch, 1963
- Pincombella Chapman, 1932
- Polystomurum Novozhilov, 1958
- Psammonlimulus
- Pseudoniscus Nieszkowski, 1859
- Pseudostylonurus Xie & Xie, 1989
- Raaschichnus Hesselbo, 1988
- Rutroclypeus Withers, 1933
- Sanctacarus
- Selenichnites Romano & Whyte, 1990
- Skrytyaspis Marshall, Lamsdell, Shpinev & Braddy, 2013
- Steropis Bailey, 1858
- Strongylocephalus Tasch, 1961
- Stylonarus Page, 1856
- Stylonuroides Kjellesvig-Waering, 1966
- Syntomopterella Tetlie, 2007
- Syntomopterus Kjellesvig-Waering, 1961
- Thurandina Stormer, 1974
- Tremaglaspis Fortey & Rushton, 2003
- Truncatiramus Kjellesvig-Waering, 1961
- Willwerathia Stormer, 1969
註記
- Boudreaux H. B. . New York, Chichester, Brisbane, Toronto: John Willey & sons. 1979: 320 pp.
- Weygoldt, P. & Paulus, H.F. . Zeitschrift für zoologische Systematik und Evolutionsforschung. 1979, 17: 85–116, 177–200.
- . GBIF. [2023-03-23]. （原始内容存档于2022-08-19）.
- Eric Gershon, Dibasterium durgae • Silurian horseshoe crab illuminates the evolution of arthropod limbs
參考資料
石川良輔編『節足動物の多様性と系統』,(2008),バイオディバーシティ・シリーズ6(裳華房)
外部連結
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