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Euchelicerata
Taxonomy
Euchelicerata was named by Weygoldt and Paulus (1979). It is extant.
It was assigned to Chelicerata by Dunlop et al. (2003), Lamsdell (2013) and Dunlop et al. (2020).
It was assigned to Chelicerata by Dunlop et al. (2003), Lamsdell (2013) and Dunlop et al. (2020).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Euchelicerata Weygoldt and Paulus |
| 2003 | Euchelicerata Dunlop et al. p. 222 |
| 2013 | Euchelicerata Lamsdell p. 19 |
| 2020 | Euchelicerata Dunlop et al. p. 8 |
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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.
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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Fm. †Chasmataspididae Caster and Brooks 1956
Fm. †Diploaspididae Stormer 1972
Invalid names: Chasmataspidacea Caster and Brooks 1956 [empty], Diploaspidida Simonetta and Delle Cave 1978 [synonym], Heteroaspididae Størmer 1972 [empty]
Unr. Sclerophorata Kamenz et al. 2011
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Cl. Arachnida Lamarck 1801
Or. †Eurypterida Burmeister 1843 [eurypterid]
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Invalid names: Cyrtoctenida Stoermer and Waterston 1968 [synonym], Gigantostraca Haeckel 1896 [synonym]
Fm. †Weinberginidae Richter 1929
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Cl. Xiphosura Latreille 1802
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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
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Fm. †Belinuridae Zittel and Eastman 1913
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Invalid names: Euproopidae Eller 1938 [synonym], Liomesaspididae Raymond 1944 [synonym]
Superfm. †Eolimulacea Bergström 1968
Invalid names: Belinuracea Zittel and Eastman 1913 [invalid subgroup], Euproopacea Eller 1938 [invalid subgroup]
Subor. Limulina Richter and Richter 1929
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Superfm. Limuloidea Leach 1819
Fm. †Rolfeiidae Selden and Siveter 1987
Invalid names: Limulacea Leach 1819 [empty]
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]
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 Early/Lower Cambrian to the top of the Holocene or 541.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 513.0 Ma
Minimum age of oldest fossil (stem group age): 513.0 Ma
Collections (1134 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cambrian | Sweden (Öland) | Eolimulus alata (210576) | |
| Franconian | USA (Idaho) | Merostomata indet. (184601) | |
| Tremadoc | USA (Montana) | Merostomata indet. (275) | |
| Tulean | USA (Montana) | Merostomata indet. (287) | |
| Llanvirnian | USA (Tennessee) | Chasmataspis laurencii (37450) | |
| Darriwilian | United Kingdom (Wales) | Xiphosura indet. (230215) | |
| Darriwilian | USA (Iowa) | Pentecopterus decorahensis (225212) | |
| 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) | |
| Sandbian | United Kingdom (Wales) | Brachyopterus stubblefieldi (206522) | |
| Katian | Canada (Manitoba) | Lunataspis aurora (216760 216761) | |
| Katian | USA (Ohio) | Megalograptus ohioensis (204962) Megalograptus shideleri (204963) Megalograptus welchi (204994) Megalograptus williamsae (204993) | |
| Katian | Turkey | Paraeurypterus anatoliensis (184932) | |
| Katian | USA (New York) | Echinognathus clevelandi (204767) | |
| Richmond - Ashgill | USA (Ohio) | Megalograptus sp. (392) | |
| Richmondian - Ashgill | USA (Ohio) | Megalograptus sp. (393) | |
| Hirnantian | South Africa | Onychopterella augusti (26994) | |
| Llandovery | Canada (Ontario) | Carcinosoma libertyi (13854) | |