I got about halfway through Edwin Colbert’s The Age of Reptiles today, but I had to put it down. While the book sports a fair number of illustrations, Colbert was not a gifted writer and (like many other paleontology texts) the work is more of a list of what lived where and when than anything else. I further found it curious that rather than editing the new work as a whole an addendum was tacked on, making some corrections about Plate Tectonics, but otherwise the book is left intact. I might try to make it through the 2nd half tomorrow, but I can’t say that it is particularly useful other than as a snapshot of ideas in vertebrate paleontology in the mid-1960’s.
Anyway, Colbert often refers to Allosaurus with the name Antrodemus, a term that I have to admit I had not seen previously. While I will have to look into the matter further, apparently a fragmentary allosaur was described under the genus name Antrodemus by Joeseph Leidy in 1870, but there simply was not enough material to determine precisely what it was. Given the rules about priority, some scientists seem to have preferred the genus name Antrodemus to Allosaurus, but like similar controversies about fragmentary theropods, Allosaurus was much better established and rightly remained the genus name for the Jurassic theropods.
I actually just happened across this name a second time, looking for information about the Princeton Geology Museum (I was planning on making a visit in the next week or so). I have seen plenty of rumors about the museum being closed in favor of more office space, but I guess I’ll just have to make the trip and find out for myself. The old fossil hall, featuring
Antrodemus Allosaurus as it’s centerpiece. If the skeleton is still there you can fully expect photographs after I make my visit.