Ancient Goose Fossil Challenges Long-Held Theories About New Zealand Birds
scitechdaily.com
A tiny ancient goose fossil from New Zealand is dismantling a beloved evolutionary narrative — showing how a single specimen can overturn decades of accepted theory.
PhylogeneticsPunctuated EquilibriumAncestral Lineage TheoryIsland Biogeography
Theory Briefing
- The St Bathans goose fossil was once believed to be the direct ancestor of New Zealand's giant flightless Cnemiornis geese, a theory now challenged.
- New analysis suggests the lineage's history is far more complex, undermining the clean linear descent model scientists had long accepted.
- The find illustrates how fossil record gaps can lock researchers into flawed evolutionary frameworks until a single discovery forces a rethink.