24 January 2020
Allosaurus jimmandsi is a new dinosaur named from the Morrison Formation at Dinosaur National Monument in Utah.
The name has been around for quite awhile, so you may have heard of it before, but ithis is the formal naming and description.
Though found in Utah, other species found in the same area have been found in Arizona, so it's quite possible this could be added to the dinosaurs of Pinal County. It lived about 5 million years before the more common Allosaurus fragilis.
A new dinosaur species is named and described about every 7 weeks. There are only about 750 species known, which is just a small fraction of the dinosaurs that probably existed.
Image from the article.
Read the article at: https://peerj.com/articles/7803/?fbclid=IwAR1Ay5C3nYLsBn5_wUCfBTPrW8_KWI2Z8p4-hdUQ3vUoetBWty8W5RkXEJ8
2020. Cranial anatomy of Allosaurus jimmadseni, a new species from the lower part of the Morrison Formation (Upper Jurassic) of Western North America. PeerJ 8:e7803 https://doi.org/10.7717/peerj.7803
