Sentences with phrase «seemingly sudden appearance»
Their modelling showed that moderately accelerated evolution was sufficient to explain the seemingly sudden appearance of many groups of advanced animals in the fossil record during the Cambrian explosion.
https://www.sciencedaily.com/
This fits - and - starts hypothesis [pdf]-- what evolutionary theorists Stephen J. Gould and Niles Eldredge dubbed «punctuated equilibrium» in 1972 — helps explain the seemingly sudden appearance of new species in the fossil record.