The dinosaur is thought to have reconsidered bird evolution
Physicists’ view of the oldest Archaeopteryx (Theropoda: Avialiae): Anatomy, systematics and phylogeny
The early understanding of the earliest bird evolution was compared to Archaeopteryx by Zhou, Z. and Zhang. Naturwissenschaften 90, 220–225 (2003).
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Rauhut, O. W., Foth, C. & Tischlinger, H. The oldest Archaeopteryx (Theropoda: Avialiae): a new specimen from the Kimmeridgian/Tithonian boundary of Schamhaupten, Bavaria. PeerJ 6, e4191 (2018).
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A paper by Zheng, X. The early evolution of the bird’s sternum and the absence of sternal elements in Anchiorines and aves are some of the areas where there is no sternal elements. There is a Proc. Natl Acad. Sci. USA 111, 13900–13905 (2014).
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There are patterns in theropod behavior on the way to birds. The PeerJ 9, e10855 will be published in the year 2021.
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The avian ancestral dinosaurs of the Caadn Asfalto Formation: A new dinosaur from an emerging Jurassic terrestrial fauna
There are magmatic rocks along the coast of southeastern China that may be related to paleo-Pacific plate subduction. J. Asian Earth Sci. 210, 104687 (2021).
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Source: A new avialan theropod from an emerging Jurassic terrestrial fauna
Discovery of Fujianvenator: a dinosaur discovered by scientists in a swamp and then fed up with fossilization, the palaeontologist says
A package for inference and estimation about allometric lines has been published. Methods Ecol. Evol. 3, 257–259 (2012).
“This is really a weird animal within the group of birds,” says Mark Loewen, a palaeontologist at the University of Utah in Salt Lake City, who was not involved in the discovery.
Alternatively, those stilts could have been used for wading. The researchers discovered a variety of swamp creatures in the area where Fujianvenator was found. The fossils included fish, turtles and other animal species. Birds used to find swamps a previously unknown area. To know whether the bird’s legginess was an adaptation to swamp life or high-speed running, researchers would need to examine the ends of its toes for signs of webbing — but those digits are poorly preserved. Either scenario is equally possible, the authors write.
The fact that the dinosaur wasn’t in a building was a big deal. There have been no fossils of dinosaurs found before near the site where researchers uncovered the fossil. The hollow bones of late-Jurassic bird like dinosaurs are less able to preserve well than other bones. The ideal conditions for fossilization are the absence of oxygen and swamps or lakes.
He says that there are many things left to be discovered. “We’ve only scratched the surface of the anatomical and lifestyle diversity of these animals.”
The early evolution of the bird’s sternum, absence of sternal elements in anchiorines and aves are some of the areas where there is no sternal elements, according to a study. Re-evaluation of Haarlem Archaeopteryx and radiation of maniraptoran theropod dinosaurs has also been suggested, researchers said. A juvenile coelurosaurian theropod from China indicatesrboreal habits, they added.