Cycads

You may have heard of a paper in Science from October called Recent Synchronous Radiation of a Living Fossil. (full pdf) For example, it was attacked on evolutionary biologist Jerry Coyn’s blog Why Evolution is True as “missing the point.” What he’s talking about is how they claim to shed some light over living fossils – he claims that their study “doesn’t … have much bearing on the question.”

But that’s all academic when it comes to Brian Thomas’ DpSU, ‘Dinosaur Plant’ Evolution Stories Conflict. He begins:

Cycads, also called “sago palms,” are cone-bearing plants with long leathery shoots that often adorn dinosaur dioramas. Though there are about 11 living cycad genera, which further divide into about 300 species, many more once existed but are now known only from fossils.

Random Cycad fossil Continue reading