Flowering plants,  Darwin's 'Abominable Mystery'

Emergence of Flowering Plants: New Light Shed On Darwin's 'Abominable Mystery'

Link:http://www.sciencedaily.com/releases/2012/12/121206094131.htm

Ingress:

ScienceDaily (Dec. 6, 2012) — Research by Indiana University paleobotanist David L. Dilcher and colleagues in Europe sheds new light on what Charles Darwin famously called "an abominable mystery": the apparently sudden appearance and rapid spread of flowering plants in the fossil record.