Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica.

  title={Early evolution of the angiosperm clade Asteraceae in the Cretaceous of Antarctica.},
  author={Viviana D. Barreda and Luis Palazzesi and Mar{\'i}a Cristina Teller{\'i}a and Eduardo B. Olivero and J. Ian Raine and F{\'e}lix Forest},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={112 35},
The Asteraceae (sunflowers and daisies) are the most diverse family of flowering plants. Despite their prominent role in extant terrestrial ecosystems, the early evolutionary history of this family remains poorly understood. Here we report the discovery of a number of fossil pollen grains preserved in dinosaur-bearing deposits from the Late Cretaceous of Antarctica that drastically pushes back the timing of assumed origin of the family. Reliably dated to ∼76-66 Mya, these specimens are about 20… CONTINUE READING
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