A technician scraped away clay to reveal compound leaves, which placed the specimen in the flowering plant group known
as eudicots.
Not exact matches
The compound leaves of Potomacapnos apeleutheron identify the 120 million - year - old plant fossil
as the earliest known North American member of the
eudicots, the largest group of flowering plants.
Scientists use pollen
as a marker of geologic time and environmental conditions, so a change in the evolutionary sequence of
eudicots and their pollen could have important implications for many types of analyses.
They have alternatively been considered to be close relatives of rosids, asterids, or Santalales and are best regarded at this time simply
as one of the major clades of core
eudicots (e.g., D. Soltis et al. 2000).