led to eudicots split from other plants about 134 million years ago or 155-160 million years ago. Fossil records suggested that basal eudicots were already diverse around 121 million years ago.

Taxonomy

The earlier name for the eudicots is tricolpates, a name which refers to the grooved structure of the pollen. Members of the group have tricolpate pollen, or forms derived from it. These pollens have three or more pores set in furrows called colpi.

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