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Exquisite fossils unearthed in Inner Mongolia reveal how peas got their hard coat

Fossil treasure trove includes possible precursors to today’s flowering plants ....

United Kingdom , Inner Mongolia , Nei Mongol , United States , Soak Spring , Michael Donoghue , Charles Darwin , Charles Gasser , Peter Crane , Gongle Shi , Martin Barraud , Elizabeth Pennisi , Douglas Soltis , Yale University , University Of California , Oak Spring Garden Foundation , University Of Florida , Inner Mongolian , Chinese Academy , Nanjing Institute , ஒன்றுபட்டது கிஂக்டம் , உள் மங்கோலியா , னே மங்கோல் , ஒன்றுபட்டது மாநிலங்களில் , ஓக் வசந்த , மைக்கேல் டொநாஹ்யூ ,

Fossils of extinct plants reveal origins of today's flowering species

Gongle Shi
Newly discovered plant fossils from China, dating back more than 125 million years, may help to establish which seed plants evolved into modern flowering plants.
Flowering plants, known as angiosperms, dominate most land ecosystems, providing food and habitats for a variety of animal species. The hallmarks of angiosperms are the carpel, the female reproductive organ that encloses the ovules, and a second outer layer of tissue covering the seeds. This second outer layer – known as the angiosperm second integument – is a characteristic feature of angiosperms that isn’t seen in other modern seed plants.
However, Peter Crane at Oak Spring Garden Foundation in Virginia and his colleagues think some ancient seed plants did possess a similar and related structure. They excavated several hundred well-preserved, now-extinct, seed plant fossils from a fossilised peat deposit in Inner Mongolia, China, that formed about 125.6 million years ago. The team then exami ....

United States , Inner Mongolia , Nei Mongol , Karina Shah , Gongle Shi , Institute Of Geology , Peter Crane At Oak Spring Garden Foundation , Peter Crane , Oak Spring Garden Foundation , Nanjing Institute , ஒன்றுபட்டது மாநிலங்களில் , உள் மங்கோலியா , னே மங்கோல் , கரினா ஷா , நிறுவனம் ஆஃப் புவியியல் , பீட்டர் கிரேன் , ஓக் வசந்த தோட்டம் அடித்தளம் , நான்ஜிங் நிறுவனம் ,

Evolution: Unearthing the hidden origins of flowering plants | Nature

Research Press Release
Nature
May 27, 2021
Several hundred newly discovered plant specimens from 125-million-year-old peat in China provide novel insights into the origins of flowering plants, or angiosperms. Comparison with other plant fossils suggest that the close fossil relatives of angiosperms are reproductively diverse, according to a study presented in
Nature.
Two hallmarks of angiosperms are the carpel the female reproductive organ that encloses one or more ovules and an outer tissue layer of a cup shaped structure called the cupule, which surrounds the ovule. The outer layer is a characteristic feature of angiosperms that is not seen in other seed plants. Explaining how the these features arose is a vital component for establishing the origins of angiosperms. ....

Inner Mongolia , Nei Mongol , Peter Crane , Gongle Shi , Research Press , Early Cretaceous , உள் மங்கோலியா , னே மங்கோல் , பீட்டர் கிரேன் , ஆராய்ச்சி ப்ரெஸ் , ஆரம்ப கிரேதாஸோஸ் ,