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License established 9/9/2012, while previously I was using a CC-BY-ND license instead.
Author Archives: Jaime A. Headden
Today I step away from something that has occupied my life for … over two decades now. I have no idea if I will ever return. It saved my life when I needed it to, and stepping away is almost … Continue reading
So much has been written about Nanotyrannus, a catch-up article is hardly necessary. Indeed, many have been written, some published. The history of the name, and of the specimen that underlies it, is well-known. It behooves us, instead, to look … Continue reading
Taxonomy — the art, or perhaps slightly artistic “science” by which people name things — is not an unfamiliar subject around this blog. So you will notice a few things should you click on that tag at the bottom. For … Continue reading
Not that long ago, a new fossil locality was discovered in Kulinda, Chita (Chininskaya Oblast), Russia, and it has the potential to confirm a recent hypothesis: that the filamentous integument of many theropods, found apparently in some ceratopsian dinosaurs, may … Continue reading
The Saga Continues… Today marks the publication of a new paper describing spinosaurine material from the Kem Kem of Morocco, specifically a set of quadrate bones, the upper portion of the original tetrapod jaw joint. It’s freely available in PLoS … Continue reading
There’s no shortage of fossil archosaurs now named solely from teeth, or partial jaw bones but diagnosed or described primarily on teeth. Last I checked, this number was well over 150. Most recently, some of these used to be dinosaurs, … Continue reading