Some species of Palmoxylon may have looked like this.
Palmoxylon (meaning "Petrified palmwood"), is an extinct palm tree that is named from petrified wood found around the world. There are more than 200 species assigned to the genus Palmoxylon at this time. Palmoxylon lived during Cretaceous and Paleogene periods about 83–34 million years ago.
Fossil of Palmoxylon.