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Clade of arthropods
Arachnomorpha is a proposed subdivision or clade of Arthropoda, comprising the group formed by the trilobites and their close relatives (Artiopoda), Megacheira
Arachnomorpha
Proposed clade of arthropods
clade is the presence of antennulae. It contrasts with the opposing Arachnomorpha hypothesis, which instead posits that artiopods and marrellomorphs are
Antennulata
Phylum of invertebrates with jointed exoskeletons
subject of dispute. The main hypotheses position them in the clade Arachnomorpha with the Chelicerates. However, one of the newer hypotheses is that
Arthropod
Class of extinct, Paleozoic arthropods
horseshoe crabs, sea spiders, and arachnids) as part of a clade called Arachnomorpha, while others consider them to be more closely related to Mandibulata
Trilobite
Clade of arthropods
Marrellomorpha Myriochelata Pancrustacea Crustaceomorpha Antennulata Arachnomorpha Uniramia "Mandibulata". NCBI. Retrieved 2026-03-23. Chipman, Ariel D
Mandibulata
Group of extinct arthropods
recovering Artiopoda as more closely to chelicerates, forming the clade Arachnomorpha, while others recover Artiopoda as more closely related to mandibulates
Artiopoda
Extinct genus of arthropods
Collins, D. (2007). Reassessment of the Genus Leanchoilia(Arthropoda, Arachnomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada. Palaeontology
Leanchoilia
Extinct family of arthropods
artiopodans. Still, strabopids are often classified as part of the clade Arachnomorpha. In fact, Dunlop & Selden (1998) defined Paleomerus as "perhaps the
Strabopidae
Clade of arthropods
more support among paleontologists who consider it a sister group to Arachnomorpha, which includes trilobites and chelicerates (see cladogram below). Both
Crustaceomorpha
Extinct genus of chelicerate
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10). doi:10.1098/rsos.240499. PMC 11524597
Bunaia
Extinct group of artiopods
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10). doi:10.1098/rsos.240499. ISSN 2054-5703
Vicissicaudata
Extinct class of arthropods
biramous appendages. Various studies have alternatively placed them in the Arachnomorpha as relatives of Artiopoda (trilobites and kin), as related to Mandibulata
Marrellomorpha
Extinct genus of synziphosurine
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10) 240499. Bibcode:2024RSOS...1140499L
Setapedites
Extinct genus of Megacheiran Arthropod
Collins (2007). "Reassessment of the genus Leanchoilia (Arthropoda, Arachnomorpha) from the Middle Cambrian Burgess Shale, British Columbia, Canada".
Lomankus
Geological formation in the Intermountain West of the United States
Gorochov, 2012 Lake Unita A phalangopsine spider cricket. Eozacla †E. arachnomorpha Gorochov, 2012 Lake Unita A phalangopsine spider cricket. †E. problematica
Paleobiota of the Green River Formation
Paleobiota_of_the_Green_River_Formation
Extinct genus of arthropods
Arachnomorpha †Fuxianhuia †Antennulata †Emeraldella †Trilobitomorpha †Sidneyia †Megacheira †Yohoia †Alalcomenaeus †Leanchoilia Chelicerata Pycnogonida
Borchgrevinkium
and true chelicerates. https://web.archive.org/web/20101221002449/http://palaeos.com/Invertebrates/Arthropods/Arachnomorpha.html#Merostomoidea v t e
Merostomoidea
Proposed clade of arthropods
lamellae which evolved into book gills in crown-group chelicerates. Arachnomorpha Boudreaux, H. B. Significance of Intersegmental Tendon System in Arthropod
Cheliceromorpha
Extinct genus of arthropods
Strabops is classified in its own order, Strabopida, in the clade Arachnomorpha, along with Paleomerus, Parapaleomerus and potentially Khankaspis. It
Strabops
Extinct genus of trilobites
and Sinoburius. A position that was supported in subsequent studies. Arachnomorpha Ivantsov, A. Yu. (1999). "Trilobite-like arthropod from the Lower Cambrian
Phytophilaspis
Extinct family of chelicerates
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10) 240499. Bibcode:2024RSOS...1140499L
Offacolidae
Tribe of beetles
These 22 genera belong to the tribe Zygopini: Acopturus Heller, 1895 Arachnomorpha Champion, 1906 Archocopturus Heller, 1895 Colpothorax Desbrochers, 1890
Zygopini
Extinct genus of arthropods
Sanctacaris, Habelia, Sarotrocercus and Sidneyia, somewhere within the arachnomorpha. The closeness of Sanctacaris and Leanchoilia has been supported by
Alalcomenaeus
Geological formation in Ontario, Canada
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10) 240499. Bibcode:2024RSOS...1140499L
Bertie_Group
Extinct genus of arthropods
it. Paleomerus is classified in the order Strabopida, in the clade Arachnomorpha, along with Strabops, Parapaleomerus and potentially Khankaspis. It
Paleomerus
Desmond (May 2007). "REASSESSMENT OF THE GENUS LEANCHOILIA (ARTHROPODA, ARACHNOMORPHA) FROM THE MIDDLE CAMBRIAN BURGESS SHALE, BRITISH COLUMBIA, CANADA".
List_of_Cambrian_arthropods
(Euchelicerata): a new member of Offacolidae providing insight supporting the Arachnomorpha". Royal Society Open Science. 11 (10). 240499. Bibcode:2024RSOS...1140499L
2024 in arthropod paleontology
2024_in_arthropod_paleontology
Apiophorus Roelofs, 1875 Apsophus Hartmann, 1904 Arachnobas Boisduval, 1835 Arachnomorpha Champion, 1906 Archocopturus Heller, 1895 Atelephae Voss, 1940 Balaninurus
List_of_Conoderinae_genera
States Colorado A phalangopsine spider cricket The type species is E. arachnomorpha Genus also includes E. problematica. Heterologus duyiwuer Sp. nov Valid
2012_in_paleoentomology
†Eotrella mira – type locality for species †Eotylopus †Eozacla †Eozacla arachnomorpha – type locality for species †Eozacla problematica – type locality for
List of the Cenozoic life of Colorado
List_of_the_Cenozoic_life_of_Colorado
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