Which has more species, Evolvulus or Centradenia?
Evolvulus Evolvulus is a genus of flowering plants in the Convolvulaceae, the morning glory family. They are known generally as dwarf morning glories. Most all are native to the Americas. There are about 100 species.
Nautilus (genus) Nautilus is a genus of cephalopods in the family Nautilidae. Species in this genus differ significantly in terms of morphology from those placed in the sister taxon "Allonautilus". The oldest fossils of the genus are known from the Late Eocene Hoko River Formation, in Washington State and from Late-Eocene to Early Oligocene sediments in Kazakhstan. The oldest fossils of the modern species "Nautilus pompilius" are from Early Pleistocene sediments off the coast of Luzon in the Philippines.