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Showing results for tags 'paraves'.
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From the album: Hell Creek / Lance Formations
Even in the final years of the non-avian dinosaurs, the paravians remained diverse, with many species represented in the famed Hell Creek formation.- 1 comment
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- acheroraptor
- acheroraptor temertyorum
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From the album: Hell Creek / Lance Formations
Pectinodon (meaning "comb-tooth") is a tooth taxon, since no remains attributable to the genus beyond teeth have been found. Pectinodon seems to be a rare member of the Hell Creek fauna, with their teeth being fairly uncommon (though being so small, I'd guess that few people actively search for them). It was a small Troodontid theropod, with teeth that couldn't handle stresses as well as their Dromaeosaurid and Tyrannosaurid cousins (Torices et al. (2018)). This coupled with their small size suggest that Pectinodon was a small/soft prey specialist, preferring the rodent-sized mammals of the time, lizards, insects, etc. Some researchers have proposed omnivory as a possibility for Troodontids (cf. Holtz et al. (1998)). Troodontids famously are regarded as among the most intelligent dinosaurs for their large brain size / body size ratio. This notion serves as fodder for speculation that had the dinosaurs not gone extinct, Troodontids (Pectinodon being (one of?) the last) would have continued to grow in intelligence and develop sentience and civilizations. Troodontid teeth like Pectinodon can be easily identified by their small size, exaggerated, triangular, apically oriented posterior serrations.-
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- hell creek
- hell creek formation
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A new Jurassic theropod from China documents a transitional step in the macrostructure of feathers
haventbaptized posted a topic in Fossil News
Genuine fossils with exquisitely preserved plumage from the Late Jurassic and Early Cretaceous of north-eastern China have recently revealed that bird-like theropod dinosaurs had long pennaceous feathers along their hindlimbs and may have used their four wings to glide or fly. Thus, it has been postulated that early bird flight might initially have involved four wings. Link : https://link.springer.com/epdf/10.1007/s00114-017-1496-y?author_access_token=qK5jILmlXqTUfzaXSeOT4fe4RwlQNchNByi7wbcMAY5XtMiIuzLHT0w7pfMEQCqN57cyEs2GIzoqs5Z9sbEt05ydpRV-wedb1KJ5MwJh8Kg2RuubzDV9r0AJl8jBoI_iqK1-9ikzq8p8bOLVXyh_UA%3D%3D