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Subphylum of arthropods
The subphylum Chelicerata (from Neo-Latin, from French chélicère, from Ancient Greek χηλή (khēlḗ) 'claw, chela' and κέρας (kéras) 'horn') constitutes
Chelicerata
Class of arthropods
are arthropods in the class Arachnida (/əˈræknɪdə/) of the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites,
Arachnid
Species of moth
Catharylla chelicerata is a moth of the family Crambidae described by Théo Léger and Bernard Landry in 2014. It is found in French Guiana and Amazonas
Catharylla_chelicerata
Integrated Taxonomic Information System. "ITIS Standard Report Page: Chelicerata". www.itis.gov. "ITIS Standard Report Page: Myriapoda". www.itis.gov
List_of_animal_classes
Proposed clade of arthropods
clade of arthropods comprising Megacheira and Chelicerata. It is equivalent to total-group Chelicerata with the exclusion of Artiopoda (trilobite and
Cheliceromorpha
Posterior body part of some arthropods
prosoma (cephalothorax). It is a distinctive feature of the subphylum Chelicerata (arachnids, horseshoe crabs and others). It is similar in most respects
Opisthosoma
Clade of arthropods
the two major living subdivisions of the phylum Arthropoda, alongside Chelicerata. Mandibulates include the myriapods (centipedes and millipedes, among
Mandibulata
Mouthparts of spiders and horseshoe crabs
The chelicerae (/kəˈlɪsəriː/) are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders
Chelicerae
Group of crustaceans
armoured carapace but a quite different body plan, is a member of the Chelicerata, the group that includes the spiders and scorpions. The crab body form
Crab
Phylum of invertebrates with jointed exoskeletons
Myriapoda, Chelicerata and Pancrustacea remains unclear as of April 2012[update]. In some studies, Myriapoda is grouped with Chelicerata (forming Myriochelata);
Arthropod
Penetrative sexual activity for reproduction or sexual pleasure
ISBN 0-8146-2947-4 Ruppert, E.E.; Fox, R.S. & Barnes, R.D. (2004). "Chelicerata: Araneae". Invertebrate Zoology (7th ed.). Brooks/Cole. pp. 571–584.
Sexual_intercourse
Order of arthropods (fossil)
Arthropoda 2, Chelicerata. University of Kansas Press. ASIN B0043KRIVC. Tetlie, O. Erik (2006). "Two new Silurian species of Eurypterus (Chelicerata: Eurypterida)
Eurypterid
Clade of arthropods
that diverged before the split between the ancestors of Mandibulata and Chelicerata. However, as of the mid 2020s, most researchers favour a "short-stem
Deuteropoda
Family of basal chelicerates
resemble crustaceans but belong to a separate subphylum of the arthropods, Chelicerata. Horseshoe crabs are closely related to the extinct eurypterids (sea
Horseshoe_crab
Anatomical feature of appendages of some arthropods for processing food items
palaeontological and molecular support for a single terrestrialization within Chelicerata". Arthropod Structure & Development. 59 100997. Bibcode:2020ArtSD..5900997H
Gnathobase
singular taxon represented. A high number of arthropods belonging to the chelicerata subphylum are known from Mazon Creek. A large number of arachnids are
Paleofauna of the Mazon Creek fossil beds
Paleofauna_of_the_Mazon_Creek_fossil_beds
Form of jointed appendage of arthropods
Somite (body segment) Trilobite (Trilobitomorpha) Spider (Chelicerata) Centipede (Myriapoda) Insect (Hexapoda) Shrimp (Crustacea) 1 antennae chelicerae
Arthropod_leg
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Gnaphosidae
Herpyllus_ecclesiasticus
Academic journal
Sciences. It covers research in entomology, including studies on Myriapoda, Chelicerata, and terrestrial Crustacea. It was established in 1904 by the Czech Entomological
European Journal of Entomology
European_Journal_of_Entomology
Order of arachnids
Morphologie, Taxonomie und Phylogenie der Chelicerata. II. Cladogramme und die Entfaltung der Chelicerata". Zeitschrift für zoologische Systematik und
Ricinulei
Species of spider
Chi, M. (2015). "Neuropeptide discovery in the Araneae (Arthropoda, Chelicerata, Arachnida): Elucidation of true spider peptidomes using that of the
Latrodectus_tredecimguttatus
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Neoscona_crucifera
Predatory order of arachnids
pulmonate Arachnida (those with book lungs). Arachnida is placed within the Chelicerata, a subphylum of Arthropoda that contains sea spiders and horseshoe crabs
Scorpion
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Salticidae
Platycryptus_undatus
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Agelenidae
Agelenopsis
Chelicerata prodorsal shield
Peltidium is a prodorsal shield found in animals of the subphylum Chelicerata, in the phylum Arthropoda. In some groups (Schizomida, Palpigradi, Solpugida
Peltidium
Species of arthropod
Jesús A. (2019). "A Critical Appraisal of the Placement of Xiphosura (Chelicerata) with Account of Known Sources of Phylogenetic Error". Systematic Biology
Tachypleus_tridentatus
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Theridiidae
Latrodectus_geometricus
Species of jumping spider in the genus ''Phidippus''
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Salticidae
Phidippus_regius
Clade comprising all crustaceans and hexapods
Mandibulata (Myriapoda + Pancrustacea) over Paradoxopoda (Myriapoda + Chelicerata). According to this study, Pancrustacea is divided into four lineages:
Pancrustacea
Extinct genus of Cambrian Arthropod
from North America and China. Studies suggest it is a basal member of Chelicerata, a group which includes horseshoe crabs and arachnids. Reconstruction
Mollisonia
Extinct genus of sea scorpions
Morphologie, Taxonomie und Phylogenie der Chelicerata† II. Cladogramme und die Entfaltung der Chelicerata". Journal of Zoological Systematics and Evolutionary
Eurypterus
Small eight-legged arthropod
Prashant P.; Gavish-Regev, Efrat (2025-01-28). "The Evolutionary Biology of Chelicerata". Annual Review of Entomology. 70 (1): 143–163. doi:10.1146/annurev-ento-022024-011250
Mite
Extinct Devonian genus of Eurypterida
Lamsdell, James C.; Legg, David A. (2010). "An isolated pterygotid ramus (Chelicerata: Eurypterida) from the Devonian Beartooth Butte Formation, Wyoming".
Jaekelopterus
Class of marine arthropods
or crustaceans in historical studies. However, after the concept of Chelicerata was established in the 20th century, sea spiders have long been considered
Sea_spider
German zoologist and entomologist (1867–1943)
is held in the Museum für Naturkunde Berlin. He also coined the name Chelicerata for arachnids and their relatives. The development of the female reproductive
Richard_Heymons
Order of arachnids known as whip scorpions
Weygoldt, Peter (1–5 July 1996). "Evolution and systematics of the Chelicerata". In Bruin, J. Leo; van der Geest, P.S.; Sabelis, M.W. (eds.). Ecology
Uropygi
Extinct genus of eurypterid
O. Erik (2007). "Distribution and dispersal history of Eurypterida (Chelicerata)" (PDF). Palaeogeography, Palaeoclimatology, Palaeoecology. 252 (3–4):
Pterygotus
Extinct genus of eurypterid
(2010). "The systematics and phylogeny of the Stylonurina (Arthropoda: Chelicerata: Eurypterida)". Journal of Systematic Palaeontology. 8 (1): 49–61. Bibcode:2010JSPal
Megarachne
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Araneus_diadematus
Type of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Agelenidae
Giant_house_spider
Extinct genus of Cambrian radiodont
"Great appendage bivalved forms" †Fengzhengia †Kylinxia †Megacheira Pan-Chelicerata †Kiisortoqia †Bushizheia Antennulata †Artiopoda (including Trilobita)
Anomalocaris
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Argiope_aurantia
Genus of amblypygi
(Chelicerata: Amblypygi): Their Biology, Morphology and Systematics. Apollo Books. ISBN 8788757463. Weygoldt, Peter (2000). Whip Spiders (Chelicerata:
Acanthophrynus
Species of orb-weaver spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Argiope_bruennichi
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Pholcidae
Pholcus_phalangioides
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Lycosidae
Hogna_radiata
Genus of spiders
biogeography of the mygalomorph spider family Hexathelidae (Araneae, Chelicerata)". Journal of Arachnology. 8: 255. Hedin, M.; et al. (2018). "Phylogenomic
Atrax
Species of whipspider endemic to Southern Africa
L (2005-09-01). "Systematics of the group of African whip spiders (Chelicerata: Amblypygi): Evidence from behaviour, morphology and DNA". Organisms
Damon_variegatus
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Sicariidae
Mediterranean_recluse_spider
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Agelenidae
Eratigena
Order of arachnids
Kamenz, Carsten (2006). "The book lungs of Scorpiones and Tetrapulmonata (Chelicerata, Arachnida): evidence for homology and a single terrestrialisation event
Spider
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Theridiidae
Steatoda
Genus of arachnids
RŮŽIČKA, V.; BUCHAR, J. (2001). "BOOK REVIEW: Weygoldt P.: Whip Spiders (Chelicerata: Amblypygi). Their Biology, Morphology and Systematics" (PDF). European
Euphrynichus
Species of arachnid
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Sicariidae
Chilean_recluse_spider
Clade of arachnids
new trigonotarbid arachnid from the late Devonian of North America (Chelicerata, Arachnida, Trigonotarbida)". Journal of Paleontology. 74 (1): 25–31
Tetrapulmonata
Family of scorpions
(October 2007). "First record of the family Pseudochactidae Gromov (Chelicerata, Scorpiones) from Laos and new biogeographic evidence of a Pangaean palaeodistribution"
Pseudochactidae
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Salticidae
Phidippus_johnsoni
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Tetragnathidae
Meta_menardi
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Zoropsidae
Zoropsis_spinimana
Family of sea spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Pycnogonida Order: Pantopoda Suborder: Stiripasterida Family:
Austrodecidae
Order of marine chelicerates
February 2019). "A Critical Appraisal of the Placement of Xiphosura (Chelicerata) with Account of Known Sources of Phylogenetic Error". Systematic Biology
Xiphosura
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Mygalomorphae Family: Theraphosidae
Cobalt_blue_tarantula
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Gnaphosidae
Scotophaeus_blackwalli
Genus of scorpions
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Scorpiones Family: Scorpionidae Subfamily: Heterometrinae
Heterometrus
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Gnaphosidae
Notiodrassus
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Segestriidae
Segestria_florentina
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Theridiidae
Latrodectus_variolus
Taxonomic rank
that are include: Arthropoda: divided into subphyla Trilobitomorpha, Chelicerata, Myriapoda, and Crustacea Brachiopoda: divided into subphyla Linguliformea
Subphylum
Extinct genus of sea spiders
Jason A.; Lamsdell, James C. (2017). "Segmentation and tagmosis in Chelicerata". Arthropod Structure & Development. 46 (3): 395–418. Bibcode:2017ArtSD
Palaeoisopus
Extinct class of arthropods
other extinct groups) or stem-group arthropods outside the split between Chelicerata and the other major group of living arthropods, Mandibulata (which includes
Megacheira
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Nephilidae
Trichonephila_clavata
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Dolomedidae
Dolomedes_tenebrosus
Species of mite
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Mesostigmata Family: Halarachnidae Genus: Halarachne
Halarachne_americana
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Linyphiidae
Mecynidis
Order of arachnids
tentative cladogram of the extant amblypygi in his 2000 book Whip Spiders (Chelicerata: Amblypygi): Their Biology, Morphology, and Systematics. The cladogram
Amblypygi
Species of arachnid
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Mygalomorphae Family: Theraphosidae
Brachypelma_hamorii
Genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Lycosidae
Xerolycosa
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Lycosidae
Rabidosa_rabida
Group of arthropods
Niles; Smith, LeGrande (1974). "Revision of the suborder Synziphosurina (Chelicerata, Merostomata) : with remarks on merostome phylogeny. American Museum
Synziphosurina
Species of tick
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Ixodida Family: Ixodidae Genus: Amblyomma Species:
Amblyomma_americanum
Order of arachnids
Halanych, Ken (ed.). "A Critical Appraisal of the Placement of Xiphosura (Chelicerata) with Account of Known Sources of Phylogenetic Error". Systematic Biology
Opiliones
Order of arachnids
PMID 35273227. Humphreys, W.F., et al. (1989) The biology of Schizomus vinei (Chelicerata: Schizomida) in the caves of Cape Range, Western Australia. J. ZOol.
Schizomida
Proposed clade of arthropods
similar taxa), but excludes Crustacea (such as shrimp and lobsters) and Chelicerata (such as spiders and horseshoe crabs). The name is currently used interchangeably
Atelocerata
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Cheiracanthiidae
Cheiracanthium_inclusum
Species of orb-weaver spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Neoscona_punctigera
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Araneidae
Spined_micrathena
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Theridiidae
Latrodectus_hesperus
Species of tarantula from South America
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Mygalomorphae Family: Theraphosidae
Goliath_birdeater
Species of spider
(1983). "Further studies on the systematics of Australian Dipluridae (Chelicerata: Mygalomorphae: Dipluridae): two new genera from south Western Australia"
Kwonkan_moriartii
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Sparassidae
Giant_huntsman_spider
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Sicariidae
Hexophthalma_hahni
Order of arthropods
diploaspidids. Chasmataspidids have a controversial phylogenetic position within Chelicerata. The first species to be discovered were thought to be unusual fossil
Chasmataspidida
Species of pseudoscorpion
terrestrial predators. Harvey, MS (1991). "The cavernicolous pseudoscorpions (Chelicerata: Pseudoscorpionida) of Cape Range, Western Australia". Records of the
Ideoblothrus_woodi
Family of sea spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Pycnogonida Order: Pantopoda Family: Callipallenidae Flynn, 1929
Callipallenidae
Extinct genus of spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: †Mongolarachnidae
Mongolarachne
Family of mygalomorph spiders
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Mygalomorphae Clade: Avicularioidea
Australian_funnel-web_spider
Species of mite
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Trombidiformes Family: Tetranychidae Genus: Bryobia
Clover_mite
Species of spider
is the coxa and patella which are slightly paler. (See arthropod leg#Chelicerata for details). Marusik, Yuri M.; Azarkina, Galina N.; Koponen, Seppo (2003)
Mongolicosa_glupovi
Species of spider
Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Mygalomorphae Family: Theraphosidae
Antilles_pinktoe_tarantula
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