25 July 2017
One of the original papers that describes and discusses Sinosauropteryx that we discussed and is worth bringing back immediately on this site: Ji and Ji 1996. Other articles that mention or describe Sinosauropteryx have been written since 2012, which makes because it is such an interesting and important dinosaur. Lingham-Soliar 2015 examines the postural stages of death in Sinosauropteryx. This paper describes three stages of the tail and neck as they assume what is known as an opisthotonic pose of the tails and necks. Studying the taphonomy of Sinosauropteryx is not all that has occurred in the last few years. Due to its important position as the first non-avian dinosaur positively sporting feathers, Sinosauropteryx has also been studied as a means of better understanding the evolution of the feathers. Studying the epidermis and dermis of the tail, Lingham-Soliar 2013 details the death pose (prior to his paper specifically on the death pose). Scaling and feathers and the fibers of the epidermis are all in play throughout this paper. Enjoy the reading this evening and learn some more about feathers and Sinosauropteryx.
24 July 2017
23 July 2017
|Dinosaur: ©Matt Martyniuk adapted under |
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21 July 2017
20 July 2017
Gargoyleosaurus does not appear in many mainstream popular outlets at all. There are a number of books that mention Gargoyleosaurus in some capacity or another; however, none of these are exceedingly popular, mainstream, or well-regarded within the scientific community. Most of the books are actually short kids books about dinosaurs or generalized field guide-esque books that discuss the most important scientific aspects and discoveries of whichever dinosaur in particular. There are some video game references and toys and these appear in videos or on websites dedicated to toys and video games, not surprisingly. There is a rather interesting video worth sharing here that shows the resulting miniature 3D printed sculpture. Check out the detail here:
19 July 2017
Gargoyleosaurus was a somewhat smaller ankylosaur than its descendants and later cousins. Measuring in with a skull approximately 29cm (11in) long, Gargoyleosaurus' skull was approximately the size of a squirrel (minus the tail). The entire body of the dinosaur was estimated to be up to 4m (13.1ft). The largest Ankylosaurus were estimated to be as long as 10.6m (35ft); about 2.5 times the size of this early member of the family. Estimated weights, likewise, are radically different for this smaller ankylosaur. Gargoyleosaurus was estimated to weigh 1 tonne (2,200lbs) whereas Ankylosaurus was estimated to weigh in at approximately 6.8 tonnes (15,000lbs). Aside from the weight and absolute length of Gargoyleosaurus, the dinosaur was about the size of some common livestock. It could have certainly made an interesting large pet.
18 July 2017
Skulls and postcrania in original descriptions are described together, but this does not mean that later in the research of any given taxa they may not be described separately in equal or greater detail and compared to diverse taxa. The original descriptive material pertaining to Gargoyleosaurus specifically refers to a description of a skull of a Jurassic ankylosaur (the article's title is indeed "Skull of a Jurassic ankylosaur") and does not mention the postcranial material specifically. Many years after this initial description, the pelvis received some individual detailed study and description. The love for the pelvis was part of a dedicated study of ankylosaur pelvic evolution and includes comparative descriptions of other ankylosaur pelves within the family tree. The paper contains a large number of figures showing these different pelves and how they are compared in the paper. Unlike the original description, this paper is open-sourced and therefore open to being read. The one paper significantly missing from reading that turns up on an initial search is a new description of the original materials. We can learn a lot from these two available descriptions, however, and will certainly make do with them.