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Articles are behind paywalls, so I don't know if the article confirms this -- the first abstract includes some cladistic analysis, but I'm not familiar with any of the clades mentioned. The second abstract is a little more readable, given what I know, and they don't identify this as a true spider, but only a close relative (the OP carefully refers to it as an "arachnid", not "spider" ). Oh, and there is a cited ref to thelyphonidae (whip scorpions). Apparently modern whip scorpions do not have spinnerets, so this seems to suggest this ancestral spider was a transitional form between whip scorpions and true spiders, as near as I can tell.
Ummmm ... just noticed ... the illustration seems show TEN legs -- apparently the "first pair" are not true legs, but pedipalps.
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