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Planaterga

Xiphosura - Xiphosurida

Synonymy list
YearName and author
2013Planaterga Dunlop et al. p. 8
2013Planaterga Lamsdell p. 19

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumChelicerataHeymons 1901
EuchelicerataWeygoldt and Paulus 1979
Prosomapoda
classXiphosura()
orderXiphosuridaLatreille 1802
Planaterga
Planaterga

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.

Diagnosis
ReferenceDiagnosis
J. C. Lamsdell 2013Prosomapoda lacking enlarged axial nodes on opisthosomal tergites; genal spines vestigial; opisthosoma broadest at third or fourth tergite; appendages of somite VII reduced; tergite of somite VII beginning to form microtergite.
Measurements
No measurements are available
Locomotion: actively mobilec
Life habit: nektobenthicc
Diet: carnivorec
Vision: limitedo
Created: 2010-02-05 01:13:59
Modified: 2010-02-22 02:35:37
Source: o = order, c = class
References: Bambach et al. 2007, Jell and Adrain 2002

Age range

Maximum range based only on fossils: base of the Llanvirnian to the top of the Holocene or 468.10000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 460.9 Ma

Collections (822 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Llanvirnian468.1 - 460.9USA (Tennessee) Chasmataspis laurencii (37450)
Black River460.9 - 457.5USA (New York) Eurypterida indet. (328)
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 - 433.4United 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)
Llandovery443.4 - 433.4Canada (Ontario) Carcinosoma libertyi (13854)
Llandovery443.4 - 433.4USA (Pennsylvania) Erettopterus globiceps, Hardieopterus myops, Hughmilleria shawangunk, Kiaeropterus otisius, Parahughmilleria maria (12765)
Llandovery443.4 - 433.4USA (Illinois) Onychopterella pumilis (13853)
Llandovery - Wenlock443.4 - 427.4United Kingdom (Scotland) Carcinosoma scorpionoides, Erettopterus bilobus, Nanahughmilleria lanceolata, Paracarcinosoma obesus, Parastylonurus sigmoidalis, Pterygotus lanarkensis, Slimonia acuminata (26889) Erettopterus bilobus, Hardieopterus lanarkensis, Nanahughmilleria lanceolata, Slimonia acuminata (26886)
Llandovery - Wenlock443.4 - 427.4Libya Carcinosoma sp., Pterygotus sp. (26987)
Llandovery - Ludlow443.4 - 423.0USA (New York) Ctenopterus cestrotus, Erettopterus globiceps, Hardieopterus myops, Hughmilleria shawangunk, Kiaeropterus otisius, Nanahughmilleria clarkei, Rhinocarcinosoma cicerops, Ruedemannipterus stylonuroides, Parahughmilleria maria (12764)
Silurian443.4 - 419.2USA (Pennsylvania) Ctenopterus cestrotus, Erettopterus globiceps, Hardieopterus myops, Hughmilleria shawangunk, Kiaeropterus otisius, Nanahughmilleria clarkei, Rhinocarcinosoma cicerops, Ruedemannipterus stylonuroides, Parahughmilleria maria (12763)
Silurian443.4 - 419.2USA (New York) Carcinosoma sp. (10455) Nanahughmilleria prominens (13852) Pterygotus sp., Eurypterus remipes (10456) Slimonia sp. (10454)
Aeronian440.8 - 438.5Morocco Pterygotus sp. (26985)
Telychian438.5 - 433.4China (Hunan) Hughmilleria wangi (184699)
Telychian438.5 - 433.4United Kingdom (Scotland) Palaeophonus loudonensis, Slimonia dubia, Stylonurus macrophthalmus, Stylonurus ornatus, Stylonurus elegans, Drepanopterus lobatus, Drepanopterus bembycoides, Drepanopterus pentlandicus, Eurypterus scoticus, Eurypterus minor, Bembicosoma pomphicus (153581)
Telychian438.5 - 433.4China (Sichuan) Pterygotidae indet. (27907)