Not just that but they also cross-reference the skull with that of living crocodilians (an American Alligator, African Slender-snouted Crocodile, and Gharial) and Spinosaurus and found that Baryonyx could withstand just as much torsion as some crocodilians and theropods, contrary to some studies suggesting that Baryonyx could only withstand as much torsion as a gharial. She also found that Baryonyx's skull reacted very different mechanically than a gharial, contrary to many other studies, including her own. At first I thought that this was odd, and even she noted at the end of the paper that her numbers were inconclusive and required more in-depth studies, but now she and Andrew Cuff have come back with a new paper that backs up this idea.īy using the skull of Baryonyx, a close relative of Suchomimus, they ended up with the same results. Despite its length and lack of any notable features that would resist torsion, Suchomimus has a skull that could resist excessive force just as well as other large theropods. Onto another fan-favorite, remember my post about spinosaurids a few month back? In it I talked about how Emily Rayfield conducted a study of a number of different theropods, including Suchomimus, and found something odd. scavenger posts, where I said that T-rex suffered from a large amount of inertia and likely couldn't turn quickly. This also brings to mind one of my old predator vs. The lighter head allowed the head to swerve and move around faster than big, boxy-headed Tyrannosaurus and thus the animal was probably more agile. In other news, Witmer Lab has been at it again. This time they reconstructed the neck musculature of Allosaurus using computer models and found that, unlike Tyrannosaurus, Allosaurus did not suffer from as much forward inertia. For instance, although the Psittacosaurus composite is no longer considered an example of parental care, the 34 juveniles still died together, and Zhao also talked about a new specimen which preserves multiple juveniles of differing age groups together, so there certainly are a lot of interesting points remaining to discuss. Perhaps I'll discuss discoveries of juvenile dinosaurs together in nests separate from adults. Or perhaps I'l focus on less-researched topic than dinosaur parental care, which is what I had originally planned. Updates are being made for the next issue, however. That was really depressing for me, and I felt like I let a lot of people down. All in all very disappointing, especially for myself, as the magazine article I've been writing for the last month happened to focus on this particular specimen, and with the news having been published four days before my article was due for publication, I was unable to revise it in time to make the deadline.
The 34 juveniles and the 'adult' turned out to be glued together, and the 'adult' specimen in question wasn't even of reproductive age.
Until it was found to be a fake.Ī re-analysis of the specimen in question by Zhao and associates found it to be a composite. It's also one of the best known dinosaurs, with hundreds of specimens that include details about its internal and external anatomy (even including color!), as well as its diet, ontogeny, and behavior. One of the greatest examples of the latter was the discovery of 34 juvenile Psittacosaurus nested underneath the body of the adult animal, for a long time considered to be one of the greatest examples of parental care among any dinosaurs. Psittacosaurus is a basal ceratopsian, and also currently holds the record of most known species of any non-avian dinosaur genus.
To start off I wanted to talk about a heartbreaking discovery concerning Psittacosaurus. I won't be talking about every little news item, though. *I don't want this blog to become a sort of news blog where people can come and hear about all the latest discoveries, but if there is something in the news that I find interesting, then I'll post about it.
#MESOZOICA ALLOSAURUS FREE#
Some of these discoveries have been of great interest to me, and it has encouraged me to write about it here before school ends and I get more free time to talk about other stuff.
It seems that within the last month paleontologists have been publishing a lot of new discoveries about some well-known dinosaurs, as well as discoveries from two new guys guy that I'll get to further down.
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