Good article Taxobox name Chelicerata fossil range fossilrange 445 0 Late Ordovician but see text Recent image horseshoe crab female.jpg image caption Horseshoe crab underside regnum Animal ia phylum Arthropod a subphylum Chelicerata subphylum authority Richard Heymons Heymons , 1901 subdivision ranks ... Chelicerata pronounced IPA en k l s re t or IPA en k l s r t New Latin, from French ... name RuppertFoxBarnes2004P518 Segmentation and cuticle The Chelicerata are arthropod s as they have ..., L.I., Mikulic, D.G., and Kluessendorf, J. title A new synziphosurine Chelicerata, Xiphosura from ..., S.J., Nowlan, G.S, Glasser, P.M., and Devereux, M.G. title A New Eurypterid Chelicerata from the Upper ... 1 Hexapoda 2 Crustacean Crustacea label2 Paradoxopoda 2 clade 1 Myriapoda 2 Chelicerata div A recent ... silver padding 5px clade label1 Arthropoda 1 clade 1 Chelicerata label2 Mandibulata 2 clade 1 Crustacean ... phylogeny Shultz 2007 It is generally agreed that the Chelicerata contain the Class biology classes ..., Loganamaraspis dunlopi gen. et sp. nov. Chelicerata Chasmataspidida from Lesmahagow, Scotland, and its ... 4983.2006.00583.x ref However the structure of family tree relationships within the Chelicerata has ... citation author Weygoldt, P. title Evolution and systematics of the Chelicerata ... publications. ref name Shultz2001ArachnidsInEncOfLifeSci citation contribution Chelicerata ... Category Arthropods ar az Xeliseril r ca Quelicerat cs Klep tkatci da Chelicerata de Kieferklauentr ger et L ugtundlased es Chelicerata eo Chelicerata eu Chelicerata fa fr Chelicerata ko hr Klije tari id Chelicerata it Chelicerata he ka la Chelicerata lv Helicer ti lt Cheliceriniai hu Cs pr g sok mk nl Chelicerata ja oc Chelicerata nds Keevklauendregers pl Szcz koczu kowce pt Chelicerata ro Chelicerata ru simple Chelicerata sk Klepietkavce sl Pipalkarji sr fi Leukakoukulliset sv Palpk kar tr Chelicerata ... more details
Italic title Taxobox name Angarocaris regnum Animal ia phylum Arthropod a subphylum Chelicerata superclassis Aglaspidida familia Paleomeridae genus Angarocaris genus authority Tchernyshev, 1953 Angarocaris is an extinct genus of Chelicerata chelicerate . External links http paleodb.org cgi bin bridge.pl?action checkTaxonInfo&taxon no 18896&is real user 1 Angarocaris at the Paleobiology Database Paleo arthropod stub Category Prehistoric arthropods ... more details
taxobox name Merostomoidea fossil range fossil range Cambrian regnum Animal ia phylum Arthropod a subphylum Chelicerata ? classis Merostomoidea classis authority St rmer, 1944 subdivision ranks Order biology Order s subdivision Limulavida Emeraldellida Merostomoidea is a paraphyly paraphyletic group of fossil arthropods. They have been described as a transitional form between trilobita trilobites and true chelicerata chelicerates . Sources http www.palaeos.com Invertebrates Arthropods Arachnomorpha.html Merostomoidea paleo arthropod stub Category Prehistoric arthropods ru ... more details
Taxobox regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Arachnid a subclassis Acari ordo Acariformes superfamilia Pyroglyphoidea familia Pyroglyphidae Pyroglyphidae is a family of mite s. ref name Mesh MeshName Pyroglyphidae ref References wikispecies reflist acari stub Acari Category Acari ... more details
automatic taxobox fossil range geological range Early Cambrian authority Dzik and Lendzion, 1988 Liwia is a genus of Nektaspida nektaspid , a soft bodied stem group Chelicerata chelicerate . ref name Budd1996 cite doi 10.1111 1475 4983.00064 ref References reflist Category Trilobites Category Cambrian trilobites paleo arthropod stub ... more details
Taxobox name Xaniopyramis fossil range early Carboniferous image regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Xiphosura ordo Xiphosurida subordo Limulina familia Moravuridae genus Xaniopyramis genus authority subdivision ranks Species subdivision Xaniopyramis is an extinct genus of xiphosura n, related to the modern horseshoe crab . It lived in the early Carboniferous . Sources Invertebrate Palaeontology & Evolution by Euan Neilson Kerr Clarkson External links http www.palaeos.com Invertebrates Arthropods Chelicerata Merostomata Xiphosura.html Xiphosura at Palaeos.com paleo arthropod stub Category Xiphosura Category Carboniferous animals portal Paleontology ... more details
Taxobox name Austrolimulus fossil range Middle Triassic image regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Xiphosura ordo Xiphosurida subordo Limulina familia Austrolimulidae genus Austrolimulus genus authority subdivision ranks Species subdivision Austrolimulus is an extinct genus of xiphosura n, related to the modern horseshoe crab . It lived in the Middle Triassic . Sources Evolution What the Fossils Say and Why It Matters by Donald R. Prothero and Carl Buell External links http www.palaeos.com Invertebrates Arthropods Chelicerata Merostomata Xiphosura.html Xiphosura at Palaeos.com paleo arthropod stub Triassic stub Category Xiphosura Category Triassic animals portal Paleontology portal Paleontology ... more details
Taxobox regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Merostomata ordo Eurypterida superfamilia Pterygotioidea superfamilia authority Clarke & Ruedemann, 1912 Pterygotioidea is an extinct superfamily zoology superfamily of Palaeozoic eurypterid s, and includes the family Pterygotidae together with the more basal genera Hughmilleria , Herefordopterus and Slimonia . ref cite journal author O. Erik Tetlie & Derek E. G. Briggs year 2009 title The origin of pterygotid eurypterids Chelicerata Eurypterida journal Palaeontology journal Palaeontology volume 52 issue 5 pages 1141 1148 doi 10.1111 j.1475 4983.2009.00907.x ref A total of around 54 species in 9 genera are included in the superfamily. ref cite journal author O. Erik Tetlie year 2007 title Distribution and dispersal history of Eurypterida Chelicerata journal Palaeogeography, Palaeoclimatology, Palaeoecology volume 252 issue 3 4 pages 557 574 url http fossilinsects.net pdfs tetlie 2007 PX3 DistribDispersalEurypterida.pdf format Portable Document Format PDF doi 10.1016 j.palaeo.2007.05.011 ref References reflist Category Eurypterida paleo arthropod stub ... more details
Taxobox name Tylopterella image image caption fossil range regnum Animal ia phylum Arthropod a classis Chelicerata ordo Eurypterida superfamilia familia genus Tylopterella Tylopterella is a genus of prehistoric eurypterid which lived from the Ordovician to the Upper Carboniferous period. It is of incertae sedis uncertain taxonomic placement within the order Eurypterida . Description Tylopterella is distinguishable by its small size, and its thick, partly calcareous exoskeleton with curved ridges of confluent tubercules and large knobs near the median line. Its prosoma head has a raised margin ref aut St rmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata , P34. ref . Species Tylopterella small St rmer, 1851 small Tylopterella boyli small Whiteaves, 1884 small Silurian, USA & Canada ? Tylopterella menneri small Novojilov, 1959 small Devonian, Talmyr, Russia References reflist Category Eurypterida paleo arthropod stub ... more details
Taxobox name Liomesaspis fossil range late Carboniferous Early Permian image regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Xiphosura ordo Xiphosurida subordo Bellinurina familia Euproopidae genus Liomesaspis genus authority subdivision ranks Species subdivision Liomesaspis is an extinct genus of xiphosura n, related to the modern horseshoe crab . It lived from the late Carboniferous to the Early Permian . Sources Evolution What the Fossils Say and Why It Matters by Donald R. Prothero and Carl Buell Bringing Fossils To Life An Introduction To Paleobiology by Donald R. Prothero External links http www.palaeos.com Invertebrates Arthropods Chelicerata Merostomata Xiphosura.html Xiphosura at Palaeos.com paleo arthropod stub Category Xiphosura Category Carboniferous animals Category Permian animals ... more details
Peltidium is a prodorsal shield found in animals of the Subphylum Chelicerata , in the Phylum Arthropoda . In some groups Schizomida , Palpigradi , Solpugida and Opiliones the peltidium, also known as schizopeltid , can be subdivided in propeltidium , a capace like shield that covers the proterosoma , which comprises the fused acron protocerebral region and first four segments and two free segments, mesopeltidium and metapeltidium Online Dictionary of Invertebrate Zoology . External links http digitalcommons.unl.edu onlinedictinvertzoology Online Dictionary of Invertebrate Zoology References reflist Category Chelicerate anatomy ... more details
Taxobox name Euproops fossil range Carboniferous image Euproops danae.jpg image width 200px image caption Euproops danae regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Xiphosura ordo Xiphosurida subordo Bellinurina familia Euproopidae genus Euproops genus authority subdivision ranks Species subdivision Euproops is an extinct genus of xiphosura n, related to the modern horseshoe crab . It lived in the Carboniferous . The Treatise on Invertebrate Paleontology describes Euproopidae as small forms with wedge shaped cardiac lobe bordered by distinct axial furrows, abdominal shield with annulated axis bearing a high boss on last segment. The same source describes Euprops as follows. Prosoma with flat genal spines and carinate opthamalic spines cardiopthamalic region with or without intercardiopthamalic area abdomen with raised pleural ridges that cross flattened rim and are prolonged as marginal spines annulated axis with knob on 1st and 3rd segments and elevated boss or short spine on hindmost segment telson long. U.Carb Perm. ref St rmer, L. 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata , P 20. ref References references Sources Fossils Smithsonian Handbooks by David Ward Leif St rmer, 1955, Merestomata, Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, Geological Society of America and the University of Kansas, p. P20 External links http www.palaeos.com Invertebrates Arthropods Chelicerata Merostomata Xiphosura.html Xiphosura at Palaeos.com paleo arthropod stub Category Xiphosura Category Carboniferous animals portal Paleontology it Euproops ... more details
italictitle Taxobox name Phyllocoptes image image caption regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Arachnid a subclassis Acari ordo Prostigmata familia Eriophyidae genus Phyllocoptes genus authority Phyllocoptes is a genus of acari , including the following species Phyllocoptes abaenus small Keifer, 1940 small Phyllocoptes coprosmae small Lamb, 1952 small Phyllocoptes hazelae small Manson, 1984 small Phyllocoptes metrosideri small Manson, 1989 small Acari References Category Eriophyidae Trombidiformes stub ... more details
italictitle Taxobox name Tegolophus image image caption regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Arachnid a subclassis Acari ordo Prostigmata familia Eriophyidae genus Tegolophus genus authority Tegolophus is a genus of acari , including the following species Tegolophus alicis small Manson, 1984 small Tegolophus australis small Keifer, 1964 small Tegolophus meliflorus small Manson, 1984 small Tegolophus poriruensis small Manson, 1984 small References Acari Category Eriophyidae Trombidiformes stub ... more details
NF , 23 163 327. ref to consider the Olenellinae as sister group to the Chelicerata has been refuted ... Broili, 1932 Chelicerata Heymons 1901 Euchelicerata Weygoldt & Paulus, 1979 Class Xiphosura Latreille ... more details
Italic title Automatic taxobox fossil range Fossil range Carboniferous Permian image image caption taxon Campylocephalus authority Eichwald, 1860 display parents 2 type species Campylocephalus oculatus type species authority Kutorga, 1852 subdivision ranks Species subdivision See text synonyms range map range map alt range map caption Taxobox name Campylocephalus regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Eurypterid a suberfamily family genus Campylocephalus Campylocephalus is a genus of prehistoric eurypterid of the Family Hibbertopteridae . Description Campylocephalus is distinguished by its prosoma head , which is subsemicircular and strongly convex, with subcentral compound eyes separated by inflated lobes. Its abdominal tergites are convex, with articular processes. Its appendages are almost unknown ref name ReferenceB aut St rmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata , P39. ref . Species Campylocephalus small Eichwald, 1860 small C. oculatus small Kutorga, 1852 small Permian , Russia ? C. salmi small Stur, 1877 small Carboniferous , Czech Republic References Reflist See also List of eurypterids Category Eurypterida paleo arthropod stub ... more details
Italic title Automatic taxobox fossil range Fossil range Silurian image image caption taxon Salteropterus authority Salter, 1859 display parents 2 type species type species authority subdivision ranks Species subdivision See text synonyms range map range map alt range map caption Taxobox name Salteropterus fossil range fossil range Lower Devonian regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Eurypterida superfamilia Eurypteracea familia Hughmilleriidae genus Salteropterus Salteropterus is a genus of prehistoric eurypterid of the family Slimonidae . Salteropterus lived in the Silurian period, and specimens have been recovered in Britain. Description Salteropterus is distinguishable by its distinctive telson , or tail, described as follows anterior part of carinate telson broadly trigonal with serrated posterior edges and followed by a long flat median stem which expands into a flattened posterior end . ref name St rmer cite book author Leif St rmer year 1955 chapter Merostomata series Treatise on Invertebrate Paleontology title Part P Arthropoda 2, Chelicerata page 30 ref Species Salteropterus contains only one species S. abbreviatus small Salter, 1859 small Silurian, Herfordshire, England References Reflist Category Eurypterida paleo arthropod stub ... more details
Italic title Automatic taxobox fossil range image image caption taxon Tarsopterella authority St rmer, 1951 display parents 2 type species Tarsopterella scotica type species authority Woodward, 1872 subdivision ranks subdivision synonyms range map range map alt range map caption Taxobox name Tarsopterella image image caption fossil range regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Eurypterida suberfamily family genus Tarsopterella Tarsopterella is a genus of prehistoric eurypterid of the Family Hardieopteridae . It contains only one species . Description Tarsopterella is distinguished by its prosoma head , which is subrectangular and slightly concave in front, with small compound eyes. Its abdomen has pronounced lateral epimera marginal spines similar to those of horseshoe crabs . Tarsopterella dates from the Lower Devonian period ref name ReferenceB aut St rmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata , P38 P39. ref . Species Tarsopterella small St rmer, 1951 small T. scoticus small Woodward 1864 small Lower Devonian, Scotland. small small Erieopterus brewsteri Woodward, 1864 small small Stylonurus armatus Page, 1867 small References references Category Eurypterida paleo arthropod stub ... more details
Taxobox name Cheloniellida image image caption Reconstruction of Cheloniellon calmani Broili, 1932. regnum Animal ia phylum Arthropoda classis Cheloniellida classis authority Broili , 1932 subdivision ranks Genera subdivision See text for list. The Cheloniellida Broili, 1932 are an unranked taxon usually referred to as a class or order of extinct Paleozoic Arthropoda arthropods , currently Dunlop & Selden, 1997 Dunlop, 2002 thought to be a member of the Arachnomorpha and related to the Chelicerata and the Trilobita , while not included in any of those. There are six included genera, dating from Ordovician , Silurian and Devonian . Included genera Cheloniellon Broili, 1932 Lower Devonian, Germany Duslia Jahn, 1893 Upper Ordovician, Czech Republic Neostrabops Caster & Macke, 1952 Upper Ordovician, USA Paraduslia Dunlop, 2002 Lower Devonian, Russia. Pseudarthron Selden & White, 1984 Upper Silurian Triopus Barrande, 1872 Upper Ordovician Relationships varied proposals Originally Cheloniellon was believed to be similar to trilobites Broili 1932 , though subsequent authors have suggested suggested that it is related to trilobites and Cambrian merostomoids St rmer 1944 , that it is a late representative of a trilobitomorph group giving rise to Chelicerata St rmer & Bergstr m 1978 , that it is related to loricate crustaceans Delle Cave & Simonetta 1991 or that it is the sister group to Chelicerata Wills et al. 1995 Dunlop & Selden 1997 . Account by Dunlop, 2002 . Class Cheloniellida, sister group to class Crustacea Boudreaux, 1979 . Order Cheloniellida in subclass Petalopleura in class Artiopoda , this being sister to class Marellomorpha Hou & Bergstr m, 1997 . One of the five major taxa of the Arachnomorpha , sister group to the Chelicerata. The other three are Trilobita , Aglaspidida and Strabopida Dunlop & Selden 1997, repeated by Budd, 1997 . References Boudreaux H. B. 1979 . Arthropod phylogeny with special reference to insects. John Willey & sons, New York, Chichester ... more details
Taxobox regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Pycnogonida ordo Pantopoda familia Phoxichilidiidae diversity link Phoxichilidiidae diversity 3 genera, c. 150 species subdivision ranks Genus Genera subdivision Anoplodactylus br Phoxichilidium br Phoxiphilyra Phoxichilidiidae is a family of sea spider s. About 150 species are described, almost all in the genus Anoplodactylus small Wilson, 1878 small . References PycnoBase http www.marinespecies.org pycnobase aphia.php?p browser&id 22617&expand false ct World list of Pycnogonida wikispecies Phoxichilidiidae Category Pycnogonids arthropod stub fr Phoxichilidiidae ... more details
Taxobox regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Pycnogonida ordo Pantopoda familia Austrodecidae familia authority Stock, 1954 diversity link Austrodecidae diversity 2 genera, c. 55 species subdivision ranks Genus Genera subdivision Austrodecus Pantopipetta Austrodecidae is a family of sea spider s. Austrodecids tend to be small measuring only 1 2 mm. This family is polyphyletic and will be split into two groups. References PycnoBase http www.marinespecies.org pycnobase aphia.php?p browser&id 22617&expand false ct World list of Pycnogonida wikispecies Austrodecidae Category Pycnogonids arthropod stub fr Austrodecidae pt Austrodecidae ... more details
italictitle Taxobox name Sitticus pubescens image Sitticus pubescens female front aka .jpg image width 240px regnum Animal ia subregnum Eumetazoa phylum Arthropoda subphylum Chelicerata classis Arachnida ordo Araneae infraordo Araneomorphae zoosectio Dionycha superfamilia Salticoidea familia Salticidae subfamilia Sitticinae genus Sitticus species S. pubescens binomial Sitticus pubescens binomial authority Fabricius, 1775 Sitticus pubescens is a jumping spider . Distribution S. pubescens lives in Europe , Russia and the USA . External links commons http www.canadianarachnology.org data spiders 36261 http www.nicksspiders.com nicksspiders sitticuspubescens.htm Category Salticidae Salticidae stub de Vierpunktspringspinne nl Harige springspin no Sitticus pubescens ... more details
italictitle Taxobox name Allococalodes cornutus image image width 250px image caption regnum Animal ia subregnum Eumetazoa phylum Arthropoda subphylum Chelicerata classis Arachnida ordo Spider Araneae infraordo Araneomorphae zoosectio Dionycha superfamilia Salticoidea familia Salticidae subfamilia Cocalodinae tribus genus Allococalodes series Entelegynae species A. cornutus binomial Allococalodes cornutus binomial authority Fred R. Wanless Wanless , 1982 subdivision see text subdivision ranks Subspecies Allococalodes cornutus is a jumping spider species in the gensus Allococalodes endemic ecology endemic to New Guinea . References External links Category Salticidae Salticidae stub ... more details
Italic title Taxobox name Centruroides elegans image image caption regnum Animal ia phylum Arthropod a subphylum Chelicerata classis Arachnid a subclassis Dromopoda ordo Scorpion es infraordo Orthosterni parvordo Buthida superfamilia Buthoidea familia Buthidae genus Centruroides species C. elegans binomial Centruroides elegans binomial authority Tamerlan Thorell Thorell , 1876 synonyms subdivision ranks Subspecies subdivision Centruroides elegans is a scorpion species in the genus Centruroides found in Mexico. References reflist External links wikispecies commons http www.flickr.com photos carlos mancilla 4513200144 Centruroides elegans photo on www.flickr.com Category Buthidae Category Animals described in 1876 Scorpion stub ... more details
File Spider characteristics.png thumb right 180px Arachnid anatomy br 1 four pairs of arthropod leg legs br 2 prosoma cephalothorax br 3 opisthosoma abdomen The opisthosoma is the posterior part of the body in some arthropod s, behind the prosoma cephalothorax . ref cite book author Peter Ax year title Multicellular Animals publisher Springer Science Business Media Springer isbn 9783540674061 chapter Chelicerata pages 83 85 url http books.google.co.uk books?id FweHI7uZ198C&pg PA83 ref It is a distinctive feature of the subphylum Chelicerata arachnid s, horseshoe crab s and others . Although it is similar in most respects to an abdomen and is often referred to as such , the opisthosoma is differentiated by its inclusion of the respiratory organs book lungs and the heart . Segments The number of segments and appendages on the opisthosoma vary. Scorpion s have 13, but the first is only seen during its embryological development. Other arachnids have fewer Opiliones harvestmen , for instance, have only ten. ref cite book author Ricardo Pinto da Rocha, Glauco Machado & Gonzalo Giribet year 2007 title Harvestmen the Biology of Opiliones publisher Harvard University Press isbn 9780674023437 chapter Morphology and functional anatomy pages 14 61 author Jeffrey W. Shultz & Ricardo Pinto da Rocha url http books.google.co.uk books?id pbdpSKHkKDIC&pg PA18 ref In general, appendages are absent or reduced, although in horseshoe crab s they persist as large plate like limbs, called opercula or branchiophores, bearing the book gill s, and that function in locomotion and gas exchange. In most Chelicerata chelicerates the opisthosomal limbs are greatly reduced and persist only as specialized structures, such as the silk producing Spinneret spider spinnerets of spider s or the Pecten biology pectines of scorpions. In animals like whip scorpion s and whip spider s the first two sternites bearing the book lung s may actually be highly modified opisthosomal limbs. References reflist Spider ... more details
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