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Opposed Thumb Structure revealed by Jurassic Flying Reptile


Apr 25 2021 Read 6 Times
An international team of researchers from China, Brazil, UK, Denmark and Japan have described a new Jurassic pterosaur
Kunpengopterus antipollicatus, as having the oldest true opposed thumb - a novel structure previously not known in pterosaurs.
Discovered in the Tiaojishan Formation of Liaoning, China, the new 160-million year old species dubbed ‘Monkeydactyl’, is a small-bodied darwinopteran pterosaur with an estimated wingspan of 85 cm. Most importantly, the specimen was preserved with an opposed pollex (“thumb”) on both hands.
The research team scanned the fossil of
K. antipollicatus using micro-computed tomography (micro-CT), a technique making use of X-ray to image an object. By studying its forelimb morphology and musculature, they suggest that ....

Sao Bernardo , United Kingdom , Xuanyu Zhou , Waisum Ma , China University Of Geosciences , University Of Birmingham , Tiaojishan Formation , China University , Federal University , ஸ்ம் பெர்னார்டோ , ஒன்றுபட்டது கிஂக்டம் , சீனா பல்கலைக்கழகம் ஆஃப் புவி அறிவியல் , பல்கலைக்கழகம் ஆஃப் பர்மிங்காம் , சீனா பல்கலைக்கழகம் , கூட்டாட்சியின் பல்கலைக்கழகம் ,