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Jeholornis
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Baminornis is a newly described genus of prehistoric bird from the Jurassic. While not the only known Jurassic bird (Archaeopteryx and another guy), it is an important discovery due to it having a short tail and a Pygostyle, unlike Archaeopteryx, which has a long tail.
What’s truly bizarre is that Baminornis is more basal than Jeholornis, and early bird from the early Cretaceous with a long tail. Because Baminornis is more derived than Archaeopteryx but more basal than Jeholornis, this suggests that Jeholornis and its allies evolved a long tail independently from other long tailed birds, and also had short tailed ancestors.
Additionally, a new Sperm whale from the Pliocene has been described, named Eophyseter.
And a new genus of Crocodylomorph from the Triassic, named Pattisaura
https://www.tandfonline.com/doi/full/10.1080/02724634.2024.2446604
EDIT: Apparently the bird doesn’t have a Pygostyle, but nonetheless, Jurassic birds are still cool.
(Edited by 11duckhunt)
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Dinosaurs, Pterosaurs and mammals gather around a waterfall in a redwood forest. The ornithopod in the right is Jinzhousaurus. The small theropod is Sinosauropteryx. The pterosaurs are Boreopterus. The lamprey that the Boreopterus is eating is Mesomyzon. The birds to the left are Changchengornis. The bird to the right is Jeholornis. The dromaeosaurid is Zhenyuanlong. The mammals running from the Zhenyuanlong are Eomaia. The large mammal is Repenomamus. The ceratopsian running from it is Liaoceratops.
I'm kind of confused about what they are, there placed in Avialae, but no one calls them birds even though a lot of people call all members of Avialae "Birds".
In other words, I'm asking, are they birds? or are they non avian dinosaurs? Or just something else that goes in between.
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