#chelicerata — Public Fediverse posts

#Trilobites were primeval #arthropods, still unknown whether they belong to the ancestor lineage of #Chelicerata or all #Euarthropada. Besides their body segmentation, they possess #compoundeyes. #Asaphus #kowalewskii lived in the Ordovician and had #stalkedeyes, allowing it an overview of its surroundings even when covered with sediment.
©#StefanFWirth

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Reading
B.Schoenemann (2021)
https://doi.org/10.1016/j.asd.2021.101032

Pics
©S.F.Wirth

Any ideas? It looks vaguely copepod-y to me (which is sort of an admission of ignorance), but others have suggested that it might be some sort of water mite. Both of these identities require that the creature was somehow replaced with silica. #crustacea #chelicerata #acari #copepoda #cryptozoology #arthropoda #borneo
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