The egg mentioned previously is, however, a "new" and important discovery. The egg is actually associated with gastralia from a 1931 dig and, as such, is not actually new, but has not been studied in depth until recently (some may be able to generate the full pdf through EBSCO). The egg is small and crushed, but shares many characters with known theropod eggs and is confidently placed between oviraptorid and troodontid egg characters, making its likelihood of being representative of Deinonychus, and therefore one of the first recovered Dromaeosaurid, eggs much more likely. Preservation of the shell itself is considered to be phenomenal and the images taken from the egg by various means including high resolution microscopic images, are astounding. The fact that the authors determined it to be associated with the adult skeleton makes the find that much more remarkable and, with certainty, we can now say that we have recovered the first Dromaeosaurid (and Deinonychus) incubating an egg as well as the first egg of its kind. It makes the image at the top of today's entry seem that much more relevant.