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Xiphosura -

Synonymy list
YearName and author
1802Xiphosura Latreille
1852Merostomata Dana
1955Xiphosura Størmer p. 10
1992Merostomata Bengtson p. 1022
2002Merostomata Sepkoski, Jr.
2010Xiphosura Krzemiński et al. p. 134
2012Xiphosura Nielsen p. 244 figs. Fig. 44.2
2013Xiphosura Lamsdell p. 19

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumChelicerataHeymons 1901
EuchelicerataWeygoldt and Paulus 1979

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.

No diagnoses are available
No measurements are available
Locomotion: actively mobilec
Life habit: nektobenthicc
Diet: carnivorec
Created: 2009-09-21 12:33:59
Modified: 2010-02-05 01:20:45
Source: c = class
Reference: Bambach et al. 2007

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

Collections (872 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Atdabanian520.0 - 516.0Poland Paleomerus makowskii (7905)
Atdabanian520.0 - 516.0Sweden Paleomerus hamiltoni (9878 9879 9880)
Middle Cambrian513.0 - 501.0Canada (British Columbia) Aglaspida indet. (171308)
Dresbachian501.0 - 485.4USA (Utah) Beckwithia typa (50592)
Franconian501.0 - 485.4USA (Idaho) Merostomata indet. (184601)
Trempealeauan501.0 - 485.4USA (Wisconsin) Aglaspis sp. (256)
Furongian497.0 - 485.4Russian Federation (Maritime Territory) Beckwithia daubikhensis (10171)
Tremadoc485.4 - 477.7USA (Montana) Merostomata indet. (275)
Tulean485.4 - 471.8USA (Montana) Merostomata indet. (287)
Llanvirnian468.1 - 460.9USA (Tennessee) Chasmataspis laurencii (37450)
Sarka466.0 - 466.0Czech Republic Archeolimulus sp. (3857)
Black River460.9 - 457.5USA (New York) Eurypterida indet. (328)
Letna - Harnagian460.9 - 455.8Czech Republic Triopus draboviensis (3861)
Edenian460.9 - 449.5USA (Pennsylvania) Megalograptus sp. (34895)
Katian453.0 - 445.2Turkey Paraeurypterus anatoliensis (184932)
Richmond - Ashgill449.5 - 443.7USA (Ohio) Megalograptus sp. (392)
Richmondian - Ashgill449.5 - 443.7USA (Ohio) Megalograptus sp. (393)
Hirnantian445.2 - 443.4South Africa Onychopterella augusti (26994)
Llandovery443.4 - 433.4Canada (Ontario) Carcinosoma libertyi (13854)
Llandovery443.4 - 433.4United Kingdom (Scotland) Carcinosoma scoticum, Lamontopterus knoxae, Laurieopterus elegans, Nanahughmilleria conica, Parastylonurus hendersoni, Slimonia dubia, Drepanopterus bembycoides, Drepanopterus pentlandicus, Eurypterus minor, Hardieopterus macrophthalmus, Eurypterus cephalaspis (26885)