New opabiniid diversifies the weirdest wonders of the euarthropod stem group

Joanna Wolfe, Stephen Pates, Rudy Lerosey-Aubril, Allison C. Daley & Javier Ortega-Hernández
Once considered ‘weird wonders’ of the Cambrian, the emblematic Burgess Shale animals Anomalocaris and Opabinia are now recognized as lower stem group euarthropods and have provided crucial data for constraining the polarity of key morphological characters in the group. Anomalocaris and its relatives (radiodonts) had a worldwide distribution and survived until at least the Devonian. However, despite intense study, Opabinia remains the only formally described opabiniid to date. Here we reinterpret a fossil from the...
1 citation reported since publication in 2021.
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