Aglaspidida is an extinct order of aquatic arthropods that were once regarded as primitive chelicerates. However, anatomical comparisons demonstrate that the aglaspidids cannot be accommodated within the chelicerates,[2] and that they lie instead within the Artiopoda, thus placing them closer to the trilobites.[3] Aglaspidida contains the subgroups Aglaspididae and Tremaglaspididae, which are distinguished by the presence of acute/spinose genal angles and a long spiniform tailspine in the Aglaspididae.[1]
Aglaspidid fossils are found in North America (upper Mississippi valley, Missouri and Utah), Europe, Australia, and China. Certain other artiopods are believed to be closely related to the aglaspidids, including the order Strabopida, which includes the genera Strabops, Paleomerus, Parapaleomerus, and possibly Khankaspis.
^ abcLerosey-Aubril, Rudy; Zhu, Xuejian; Ortega-Hernández, Javier (September 11, 2017). "The Vicissicaudata revisited – insights from a new aglaspidid arthropod with caudal appendages from the Furongian of China". Scientific Reports. 7 (1): 11117. doi:10.1038/s41598-017-11610-5. PMC 5593897. PMID 28894246.
^Ortega-Hernández, J.; Braddy, S. J.; Jago, J. B.; Baillie, P. W. (2010). "A new aglaspidid arthropod from the Upper Cambrian of Tasmania". Palaeontology. 53 (5): 1065–1076. doi:10.1111/j.1475-4983.2010.00974.x.
^Ortega-Hernández, J.; Legg, D. A.; Braddy, S. J. (2013). "The phylogeny of aglaspidid arthropods and the internal relationships within Artiopoda". Cladistics. 29: 15–45. doi:10.1111/j.1096-0031.2012.00413.x.
Aglaspidida is an extinct order of aquatic arthropods that were once regarded as primitive chelicerates. However, anatomical comparisons demonstrate that...
Gogglops Gen. et sp. nov Valid Siveter et al. Ordovician China A member of Aglaspidida. Genus includes new species G. ensifer. Isoxys globulus Sp. nov Valid...
the type genus of the family Aglaspididae within the arthropod order Aglaspidida. It lived on the seafloor in what is now Wisconsin during late Cambrian...
Order †Cheloniellida Order †Sidneyiformes Order †Acanthomeridiida Order †Aglaspidida Order †Strabopida Order †Sinoburiida Order †Xandarellida Order †Nectaspidida...
as a relative/member of either Crustacea, Trilobita, Chelicerata or Aglaspidida. Some species even had been misidentified as polyplacophoran mollusks...
a member of Vicissicaudata within Artiopoda, more closely related to Aglaspidida, Kodymirus and Eozetetes than to Cheloniellida, Sidneyia or Emeraldella...
with this and have classified Strabops and its allies as part of the Aglaspidida order, while others classify them in their own order. Although the latter...
Ordovician of Morocco with remarks on the affinities and limitations of Aglaspidida". Transactions of the Royal Society of Edinburgh: Earth Sciences. 96...
may refer to: Beckwithia (arthropod), an arthropod genus in the order Aglaspidida Beckwithia (plant), a plant genus in the family Ranunculaceae This disambiguation...
Strabops and Neostrabops) and Paleomeridae (only Paleomerus) from the order Aglaspidida based on the fact that the head tagma was too short to accommodate the...
It is possible that other extinct arthropods, such as members of the Aglaspidida, may also have produced some of these trackways. Trilobites have been...
abdominal segments and a tail spine. It is a typical member of the group Aglaspidida. Beckwithia was named after Frank Beckwith, editor and publisher of the...
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