Five-Eyed, Nozzle-Nosed Oddity Lingered Far beyond the #Cambrian Period https://www.scientificamerican.com/article/five-eyed-nozzle-nosed-oddity-lingered-far-beyond-the-cambrian-period/ by Riley Black

#Ordovician opabiniid-like #animals and the role of the #proboscis in #euarthropod head evolution https://www.nature.com/articles/s41467-022-34204-w

Joanna Wolfe: "We have more questions now about how #opabiniids may have survived and what kinds of environments or life histories they were restricted to."

#Welsh 'weird wonder' #fossils add piece to puzzle of #arthropod #evolution https://phys.org/news/2022-11-welsh-weird-fossils-piece-puzzle.html

#Ordovician #opabiniid-like animals and the role of the #proboscis in #euarthropod head evolution https://www.nature.com/articles/s41467-022-34204-w

A proboscis—thought to represent a fused pair of head appendages—was not unique to #opabiniids, but instead was present in the common ancestor of #radiodonts and modern #arthropods, and through evolutionary time may have reduced to become the labrum of modern arthropods.