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This study investigates the balance between deterministic factors and phylogenetic contingency in the evolution of giant filter-feeding vertebrates.

May 8, 2026EvolutionOpen Access

Determinism and contingency in the evolution of giant filter-feeding vertebrates

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Randomized trial explores evolutionary patterns in giant filter-feeders, highlighting adaptive pressures and historical impacts.

This study investigates the balance between deterministic factors and phylogenetic contingency in the evolution of giant filter-feeding vertebrates.
Integrated new selachian data with existing datasets from pachycormiforms and cetaceans.
Reconstructed phylomorphospaces using cranial, dental, and jaw metrics like gape and mechanical advantage.
Employed multivariate evolutionary modeling to assess convergence and evolutionary trajectories.
Identified distinct macrophagous ancestors evolving into similar morphospace regions for efficient plankton capture.
Convergence was strongest between clades, particularly pachycormiforms and selachians, with limited overlap.
Multiregime Ornstein-Uhlenbeck models were favored, suggesting lineage-specific adaptive peaks distinct for cetaceans.

López-Galán et al. (2026) studied this question.

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May 8, 2026EvolutionOpen Access

View Full Paper

Ask AI

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Authors

Randomized trial explores evolutionary patterns in giant filter-feeders, highlighting adaptive pressures and historical impacts.

This study investigates the balance between deterministic factors and phylogenetic contingency in the evolution of giant filter-feeding vertebrates.
Integrated new selachian data with existing datasets from pachycormiforms and cetaceans.
Reconstructed phylomorphospaces using cranial, dental, and jaw metrics like gape and mechanical advantage.
Employed multivariate evolutionary modeling to assess convergence and evolutionary trajectories.
Identified distinct macrophagous ancestors evolving into similar morphospace regions for efficient plankton capture.
Convergence was strongest between clades, particularly pachycormiforms and selachians, with limited overlap.
Multiregime Ornstein-Uhlenbeck models were favored, suggesting lineage-specific adaptive peaks distinct for cetaceans.

López-Galán et al. (2026) studied this question.

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