There is much to love about Cambrian lobopods, not least the term 'Xenusiids', which is straight from an old BBC script (sent back to the writer because "The name of Dr Who's alien adversaries sounds too silly").
Also their resemblance to ambulatory pear pimples for hairy fish-nuts prickly-pear bushes, or to a homemade Father's Day gift assembled from toadskin wrapped around a pipe-cleaner sculpture, NOT THAT I'M BITTER and IT'S THE THOUGHT THAT COUNTS.
Over to the right of the line-up, note the speculative evolutionary trails from the Xenusiid lobopods to tardigrades, and to Pentastomid parasites like Bockelericambria -- which really deserve a Riddled post to themselves for being so ghastly as to belong in Charlie Stross' next 'Laundry' novel.
As well as Kerygmachela kierkegaardi and Pambdelurion whittingtoni, other lobopods elsewhere in the Cambrian oceans had finished evolving into Anomalocarids a wide variety of seafood-pizza toppings as shown above [art stolen from John Meszaros]. While other Anomalocarids had already evolved into primitive anthropods... ancestors of crustaceans, and in the case of the Megacheira, ancestors of spiders. So if Megacheira evolved from lobopods, how come there are still lobopods?
Image may be NSFW. Clik here to view.Siberion lenaicus is especially scary. No further speciments are likely to turn up because after Dzik's initial report, that particular limestone outcrop in Siberia was destroyed. This was by private fossil collectors and was totally not a cover-up to forestall the piecing together of dissociated knowledge that would open up terrifying vistas of reality.