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Dilcher said. ▓"It will be a data point that is picked up and used in other work where researcher

es sweet potatoe

s are trying to find the time of the evolution of major groups of flower▓ing plants."Previous fossil evidence had suggested the morning glory family may have o

s and many other

riginated in North A▓merica about 35 million years ago, but m▓olecular a

plants.The r▓e

nalyses supported the idea that it originated ▓earlier and in the Old World. The new research pro▓vides ev

search suggested

idence for that conclusion.The discovery

the family

also suggested the morning glory family and the nightshade family - which includes potatoes and tomatoe

originated in th

s - diverged earlier than previously th▓ought.Together with the recent, separate discovery of 52-million-year-old nightshade fossils in Argentina, it revealed that mornin▓g glories devel

e late P

oped in the East and nightshade▓s in the West.The 17 fossils analyzed in the study are the e▓arliest recorded fossils for both the ▓morning glory family, known as Convolvulaceae, and the ▓orde

aleocene e

r Solanales, which includes morning glories and nightshades.Morning glory fossils are rare b▓ecause the plants' soft structure

poch in

was not easily preserved in rocks.Dilcher's collaborators, Gaurav Srivastava and Rakesh C. Mehrotra of India's Birbal Sahni

the East Gondw

Institute of Palaeosciences, d▓iscovered the fossils in Meghalaya, a state in northeastern India.The morning glor▓y family is widely distributed in tropical and subtropi▓cal regions and inc

ana land mas

ludes about 57 plant genera and 1,880 species. The sweet pot

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