#opabiniid — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #opabiniid, aggregated by home.social.
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#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.