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Hagryphus (meaning "Ha's griffin") is a monospecific genus of caenagnathid dinosaur from southern Utah that lived during the Late Cretaceous (upper Campanian stage, 75.95 Ma) in what is now the Kaiparowits Formation of the Grand Staircase–Escalante National Monument. [1]
The parietal bones did not project past the squamosals and had V-shaped hind margins, with emargination (a series of notches) spanning their entire width. [2] [7] Diagram showing the skull from above and the left side. The epiossifications on the squamosal bones of Kosmoceratops became progressively larger towards the back of the neck frill ...
Bones of the first gill arch became the upper and lower jaw, while those from the second arch became the hyomandibula, ceratohyal and basihyal; this closed two of the seven pairs of gills. The gap between the first and second arches just below the braincase (fused with upper jaw) created a pair of spiracles , which opened in the skin and led to ...
Due to the fractures present on the bones being peri-mortem, the blows to the bones could have been made immediately prior (including as cause of) or soon after death. However, because of their precision placement, it seems more likely that most cuts and blows were made soon after the person's death, indicating a process of defleshing and ...
It is rare to find ancient carnivore fossils because there are fewer carnivores in an ecosystem than other animals such as herbivores. (For instance, you’re more likely to see a squirrel or a ...
DNA analysis confirmed the bone fragments were from humans and also that some were linked to the same person or a family member. Tests of animal bones found nearby suggest that the climate was ...
The bones of the skull roof were fused and by a folding of the frontal bones, a "double" skull roof was created. In Triceratops, some specimens show a fontanelle, an opening in the upper roof layer. The cavity between the layers invaded the bone cores of the brow horns. [30] Back of skull, showing rounded joint which connected the head and neck
Archaeologists have unravelled the mystery of a strange skeleton from Belgium consisting of bones from five people who lived 2,500 years apart. The skeleton, unearthed in the 1970s at a Roman ...