New Horned Dinosaur Species Found in Prehistoric Graveyard in the Badlands of Alberta, Canada.CLEVELAND -- A new species of horned dinosaur that lived during the Late Cretaceous Period, about 76 million years ago, was found in a fossil bed at a prehistoric graveyard in the badlands of Alberta, Canada. Dr. Michael J. Ryan, curator and head of the Department of Vertebrate Paleontology paleontology (pā'lēəntŏl`əjē) [Gr.,= study of early beings], science of the life of past geologic periods based on fossil remains. for The Cleveland Museum of Natural History The Cleveland Museum of Natural History is a natural history museum located approximately five miles (8 km) east of downtown Cleveland, Ohio in University Circle, a 550-acre (220 ha) concentration of educational, cultural and medical institutions. made the announcement today to coincide with the publication on the new species in the latest volume of the Canadian Journal of Earth Sciences. The new species, named Centrosaurus brinkmani, belongs to the group of dinosaurs related to the well-known Triceratops Triceratops (trīsĕr`ətŏps) [Gr., = three-horn face], genus of ornithischian quadruped dinosaurs of the late Cretaceous period. , but lived about 10 million years earlier. Remains of the dinosaur were discovered in bone beds in southern Alberta, the largest of which is in Dinosaur Provincial Park Dinosaur Provincial Park is a World Heritage Site located about 2 hours drive east of Calgary, Alberta, Canada or 48 kilometres northeast of the community of Brooks. The park is situated in the valley of the Red Deer River, which is noted for its striking badland topography. , a UNESCO UNESCO: see United Nations Educational, Scientific, and Cultural Organization. UNESCO in full United Nations Educational, Scientific and Cultural Organization World Heritage Site. Ceratopsian (horned) dinosaurs can be distinguished from one another by the ornamentation on their frills Frills see frilled. that extend shield-like from the back of their skulls. Distinctive hooks and "spikelets" on the frill allowed scientists to identify this dinosaur as a new species. "It looks like someone stuck a bunch of long-spined sea anemones all around the margin of the frill," Ryan said. "The ornamentation on the frill was probably not used as defensive weaponry -- the clusters of spikes would have been too small," said co-author Dr. Tony Russell, professor of Zoology at the University of Calgary. "The spikes were probably more important in signaling sexual maturity to others in the group," said Russell. "The centrosaurus may have even used them to push each other around in battles over females just as Bighorn sheep Bighorn sheep a tall (up to 3 ft), heavy (up to 300 lb body weight) wild sheep that lives in inaccessible mountain country where it exercises its principal achievement of prodigious leaping and climbing. Called also Ovis canadensis. Several regional varieties, e.g. O. c. rams do today." "These bone beds are good evidence that Centrosaurus brinkmani lived and moved in large herds for at least part of the year," said Ryan. "Whatever killed them deposited their bodies together, where they decayed and fell apart before they were fossilized fos·sil·ize v. fos·sil·ized, fos·sil·iz·ing, fos·sil·iz·es v.tr. 1. To convert into a fossil. 2. To make outmoded or inflexible with time; antiquate. v.intr. . Because all the bones had come apart it took us a couple of years of excavation to recover enough pieces to realize that we had something new." The species is named in honor of Dr. Donald Brinkman, a paleontologist at the Royal Tyrrell Museum and long-time colleague of Ryan. "Don's been a great supporter of vertebrate paleontology in Alberta and helping students, so it's a pleasure to tip my field cap to him in this way," said Ryan. Centrosaurus brinkmani is one of the few new dinosaurs to be named from Alberta in the past few decades, and the first new dinosaur to be named based on complete skeletal material from Dinosaur Provincial Park since the 1970's. The Royal Tyrrell Museum is 6 km northwest of Drumheller. Call (403) 823-7707. Call The Cleveland Museum of Natural History at (216) 231-4600 or 800-317-9155. Artwork is available at the Museum's web site www.cmnh.org. |
|

Printer friendly
Cite/link
Email
Feedback
Reader Opinion