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Cladogram from Mussini et al. (2024):
[1]
Cladogram from Dearden et al. (2023) (extended data fig. 9):
[2]
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^ Mussini, G.; Smith, M. P.; Vinther, J.; Rahman, I. A.; Murdock, D. J. E.; Harper, D. A. T.; Dunn, F. S. (2024).
"A new interpretation of Pikaia reveals the origins of the chordate body plan". Current Biology.
doi:
10.1016/j.cub.2024.05.026.
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^ Dearden, R. P.; Lanzetti, A.; Giles, S.; Johanson, Z.; Jones, A. S.; Lautenschlager, S.; Randle, E.; Sansom, I. J. (2023). "The oldest three-dimensionally preserved vertebrate neurocranium". Nature. 621 (7980): 782–787.
doi:
10.1038/s41586-023-06538-y.