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Chelicerata
Taxonomy
Chelicerata was named by Heymons (1901). It is extant.
It was assigned to Arthropoda by Bengtson (1992), Sutton et al. (2002), Dunlop et al. (2003), Siveter et al. (2004), Nielsen (2012) and Lamsdell (2016); and to Deuteropoda by Ortega-Hernández (2016).
It was assigned to Arthropoda by Bengtson (1992), Sutton et al. (2002), Dunlop et al. (2003), Siveter et al. (2004), Nielsen (2012) and Lamsdell (2016); and to Deuteropoda by Ortega-Hernández (2016).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1901 | Chelicerata Heymons |
| 1906 | Limulus nathorsti Jackson p. 1 fig. 1,2 |
| 1992 | Chelicerata Bengtson p. 1022 |
| 2002 | Chelicerata Sutton et al. p. 1198 |
| 2003 | Chelicerata Dunlop et al. p. 222 |
| 2004 | Chelicerata Siveter et al. p. 978 |
| 2012 | Chelicerata Nielsen p. 240 figs. Fig. 44.2 |
| 2016 | Chelicerata Lamsdell p. 185 |
| 2016 | Chelicerata Ortega-Hernández |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Subph. Chelicerata Heymons 1901
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Unr. Euchelicerata Weygoldt and Paulus 1979
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Unr. Prosomapoda Lamsdell 2013
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Unr. Planaterga Lamsdell 2013
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G. †Bunaia Clarke 1919
G. †Bunodes Eichwald 1859
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†Bunodes lunula Eichwald 1854
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Invalid names: Bunodes rugosus Eichwald 1854 [synonym], Exapinurus schrenki Nieszkowski 1859 [synonym]
Invalid names: Exapinurus Nieszkowski 1859 [synonym]
G. †Cyamocephalus Currie 1927
Unr. Dekatriata Lamsdell 2013
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Or. †Chasmataspidida Caster and Brooks 1956
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Invalid names: Diploaspidida Simonetta and Delle Cave 1978 [synonym]
Unr. Sclerophorata Kamenz et al. 2011
Fm. †Weinberginidae Richter 1929
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Cl. Xiphosura Latreille 1802
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Fm. †Kasibelinuridae Pickett 1993
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G. †Kasibelinurus Pickett 1993
G. †Pickettia Bicknell et al. 2019
Invalid names: Elleriidae Raymond 1944 [synonym]
G. †Maldybulakia Tesakov and Alekseev 1998
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†Maldybulakia angusi Edgecombe 1998
†Maldybulakia malcolmi Edgecombe 1998
Invalid names: Lophodesmus Tesakov and Alekseev 1992 [replaced]
G. †Micrichnus Abel 1926
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†Micrichnus scotti Abel 1926
Invalid names: Artiodactylus Abel 1935 [synonym]
G. †Patesia Bicknell and Smith 2021
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G. †Willwerathia Størmer 1969
Or. Xiphosurida Latreille 1802
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Subor. †Belinurina Bergström 1975
Subor. Limulina Richter and Richter 1929
Invalid names: Bellinurina Zittel and Eastman 1913 [empty], Omoptilus Pruvost 1919 [nomen dubium], Omoptilus hispidus Pruvost 1919 [nomen dubium], Paleolimuloidea Anderson and Selden 1997 [empty]
Invalid names: Gnathopoda Straus-Durkheim 1829 [synonym], Merostomata Dana 1852 [synonym], Poecilopoda Claus 1868 [synonym], Xyphosures Latrielle 1802 [synonym]
Invalid names: Synziphosurina Packard 1886 [invalid subgroup]
Or. †Habeliida Aria and Caron 2017
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G. †Messorocaris Lerosey-Aubril and Skabelund 2018
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†Messorocaris magna Lerosey-Aubril and Skabelund 2018
Or. †Mollisoniida Lerosey-Aubril et al.
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Fm. †Mollisoniidae Simonetta and Della Cava 1975
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G. †Corcorania
G. †Thelxiope
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†Thelxiope holmani Lerosey-Aubril et al. 2020
†Thelxiope palaeothalassia Simonetta and Delle Cave 1975
†Thelxiope spinosa Conway Morris and Robison 1988
Invalid names: Ecnomocaris Conway Morris and Robison 1988 [synonym], Parahabelia Simonetta 1964 [replaced]
Fm. †Offacolidae Sutton et al. 2002
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Invalid names: Limulus nathorsti Jackson 1906 [nomen dubium]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Atdabanian to the top of the Holocene or 520.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 516.0 Ma
Minimum age of oldest fossil (stem group age): 516.0 Ma
Collections (1155 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cambrian | Sweden (Öland) | Eolimulus alata (210576) | |
| Atdabanian | China (Yunnan) | Urokodia aequalis (68083 86846) Urokodia sp. (86929) | |
| Nangaoian | China (Hubai) | Mollisonia sp. (219687) | |
| Nangaoian | China (Yunnan) | Urokodia aequalis (194143 194153 194155) | |
| Delamaran | Canada (British Columbia) | Mollisonia sp. (84426 84427 84428) | |
| Middle Cambrian | USA (Utah) | Mollisonia symmetrica (80122 80127) | |
| Middle Cambrian | Canada (Brithish Columbia) | Mollisonia sp. (188664) Sanctacaris uncata (188662) | |
| Middle Cambrian | Canada (British Columbia) | Mollisonia sp. (171308) | |
| Marjumian | USA (Utah) | Messorocaris magna (80125 228654) | |
| Franconian | USA (Idaho) | Merostomata indet. (184601) | |
| Tremadoc | USA (Montana) | Merostomata indet. (275) | |
| Tulean | USA (Montana) | Merostomata indet. (287) | |
| Floian | Morocco | Thelxiope sp. (96113) | |
| Llanvirnian | USA (Tennessee) | Chasmataspis laurencii (37450) | |
| Darriwilian | USA (Iowa) | Pentecopterus decorahensis (225212) | |
| Darriwilian | United Kingdom (Wales) | Xiphosura indet. (230215) | |
| Sarka | Czech Republic | Archeolimulus sp. (3857) | |
| Black River | USA (New York) | Eurypterida indet. (328) | |
| Caradoc | USA (Virginia) | Megalograptus alveolatus (204960) | |
| Edenian | USA (Pennsylvania) | Megalograptus sp. (34895) | |