As you all might know; that many Paleontologists do actively think; that the Pterosaur hatchlings, or reffered to as; 'flaplings' as Superprecocial; means that they are absolutely independent from the moment of hatching/birth; and receive no parental aid...
However! There is this fossil discovery (kind of old news; 2015; but appearently almost nobody actively acknowledged this! Shows how ignorant the 'paleo communities could be) shows that its quite the opposite; that These flaplings quite probably hatch/born helpless and dependant on their brooding parent/s!
â–ŞQuote: '' The eggs, though they survived this long, are delicate. To look inside without causing damage, the team used CT scans and found 16 of the eggs still had remnants of their embryos. Each embryo varied in its stage of development, but all the eggs had well-developed thigh bones and underdeveloped pectoral muscles. One embryo, which the team classified as the most mature, had partially developed wings and skull bones, as well as a complete lower jaw.
From this, the team thinks pterosaur hind legs developed faster than their forelimbs, meaning babies are born able to walk around but unable to fly.
What does this mean for pterosaur parenting?
Other telling signs from the eggs, such as growth marks on bones, helped the team estimate the age of the babies. They report that one of the eggs had a hatchling that was at least 2 years old, which supports a previous hypothesis: Pterosaurs need to develop in the egg for longer periods of time, similar to how human babies develop in the womb for nine months.
The team also discovered that these embryos lacked teeth at this stage of development. If pterosaurs hatched without teeth, then the young reptiles may have needed additional care or help with feeding.
Other paleontologists think if the pterosaurs had stayed in their eggs longer, fully grown teeth and better developed skull would have been more likely.
Where do these eggs leave us?
Before this wealth of pterosaur samples, paleontologists wondered how these prehistoric creatures mingled. So seeing, for the first time, a large colony of nests sparks some interesting ideas. Could raising their young together mean pterosaurs were social and nurturing toward one another? The team hopes to use these eggs, and any others they unearth, to glean even more insight into pterosaur parenting and communal life.
Source/s :
Original Papper/Thesis/Publication
https://www.researchgate.net/publication/323647678_Possible_brooding_of_pterosaur_parents
The News Article
Additional source
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