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primitive chelicerates. However, anatomical comparisons demonstrate that the aglaspidids cannot be accommodated within the chelicerates, and that they lie instead...

Ortega-Hernández, Javier; Legg, David A.; Braddy, Simon J. (2013). "The phylogeny of aglaspidid arthropods and the internal relationships within Artiopoda". Cladistics...

Fortey; Xuejian Zhu; Zhiyi Zhou (2018). "A three-dimensionally preserved aglaspidid euarthropod with a calcitic cuticle from the Ordovician of China". Geological...

concilitergans and xandarellids, and the other called Vicissicaudata encompassing aglaspidids, xenopods and cheloniellids. There are some taxa, such as Squamacula...

into Strabopidae. Although often suggested to be closely related to aglaspidids due to their similar morphology, their exact phylogenetic placement is...

Beckwithia, an aglaspidid trilobite relative...

the Czech Republic, which bears some resemblance to eurypterids and aglaspidids. Although it possessed great appendage-like raptorial arms, it was not...

the Czech Republic, which bears some resemblance to the eurypterids, aglaspidids and chelicerates. It is diagnostic of a small and low-diversity fauna...

from the Cambrian of Missouri, are now classified as aglaspidids or strabopids. The aglaspidids, once seen as primitive chelicerates, are now seen as...

Javier; Legg, David A.; Braddy, Simon J. (February 2013). "The phylogeny of aglaspidid arthropods and the internal relationships within Artiopoda". Cladistics...

Angarocaris is an Aglaspidid-like extinct genus of basal chelicerate. Found during the Ordovician period, Angarocaridid fossils are found primarily in...

directed backward, a character that distinguishes Beckwithia from other Aglaspidid genera. Only one species, Beckwithia typa, is currently recognized. "Beckwithia...

Strabopidae of the monotypic order Strabopida, a group closely related to the aglaspidids with uncertain affinities. The generic name is composed by the Ancient...

Sphenothallus, one species of Palaeoscolecida, and arthropods, which include aglaspidid, mollisoniid, and "bivalved" forms. Rare hurdiids were discovered in the...

correct, it means that P. venator is related to trilobites, nektaspids, aglaspidids, xenopods, and xandarellids. However in 2022, its affinity as cheloniellid...

Ortega‐Hernández, Javier; Legg, David A.; Braddy, Simon J. (2013). "The phylogeny of aglaspidid arthropods and the internal relationships within Artiopoda". Cladistics...

of aglaspidid arthropods that lived in shallow seas in what is now Wisconsin during Late Cambrian times. It is distinguished from other aglaspidids by...

of the order Strabopida, a poorly known group closely related to the aglaspidids of uncertain affinities, often being ignored by researchers and authors...

these trackways. Trilobites have been suggested as well; however, no aglaspidids or trilobites have been found thus far in the strata that contain this...

elements. Wisconsin’s Cambrian rocks have also produced fossils of more aglaspidid (a grouping of arthropods closely related to trilobites) species (around...