Xinhuanet jinan on December 4 special telegram (reporter LiuBaoSen) Chinese ancient experts in shandong probince the excavated one of the fiber horn dragon of dinosaur fossils were confirmed as a new dinosaur species _ and for research in late cretaceous horn dragon evolution provides empirical complexity.
Reporters from are shandong probince held 2010 shandong probince cretaceous terrestrial ecosystem international symposium on that, this new dinosaur species _ named "dragon", the accident on the corner of the discovery of research achievement already in November published in the journal plos integrated "(PLoSone).
The corner dragon "accident" the discovery and named person, Chinese academy of sciences paleovertebrates and paleoanthropoids researcher at the institute riken said, this kind XuXing dinosaur besides having strong jaw teeth with wide Angle dragon distinct characteristics such as fiber outside, still have horns CaiJu some LongKe dinosaur characteristics, such as spinal flat, ribs, but without horns slender, etc, and neck shield short, so will the classified as fiber Angle LongKe dinosaurs.
Use the word "accidents" named mainly because this fossil from zhucheng dragons have street library ditch dinosaur fossils passageways, its located strata with large scattered hadrosaurs skeleton, and this one fiber horn dragon fossil surprisingly burial in this, not only save, and associated abnormal integrity. Previously, fine horn dragon fossil in Asia is very rare, the main producing area in North America.
As we have learned, current in cities dinosaur fossils buried point has found four horns dragon fossils, except the corner accident "dragon" outside, still found outside North America the sole large horn dragon fossils, named "China's horn dragon" giving. Two other horn dragon is researching process, is also expected to fill horn dragon research blank.
"I can say cities is Angle of dragon paradise." XuXing thinks, the Angle of accident "dragon" illustrates horn dragon class differences between the dinosaur species than previously thought much larger, This fossil also confirmed that fiber horn dragon horn dragon class dinosaur progress taxa, is with horns LongKe dinosaur such as "Chinese cities such as dragon horn in the cretaceous age of dinosaurs living together the most advanced dinosaur, this also for research in late cretaceous horn dragon evolutionary complexity provides a demonstration.
At present, this fossil is preserved in cities cretaceous dinosaur geological park inside of dinosaur fossils repair outfit frame center.
Shandong probince is important to large hadrosaurs class as a representative of the late cretaceous dinosaur fossils output. Proven dinosaur fossils point is 30 place, exposure fossil 20,000 pieces, discovered the hadrosaurs class, horn dragon type, tyrannosaurus rex classes, the ankylosaurus class, virtual bone dragons kind, lizard feet more than 10 taxa of dragon of dinosaur fossils, part for the world's first found. Taxa
新华网济南12月4日专电(记者刘宝森)中国古生物专家在山东诸城发掘出土的一件纤角龙类恐龙化石被证实为一个新的恐龙属种,为研究白垩纪晚期角龙演化的复杂性提供了实证。
记者从正在山东诸城召开2010年山东诸城国际白垩纪陆相生态系统学术研讨会上获悉,这一新恐龙属种被命名为"意外诸城角龙",关于这一发现的研究成果已于11月份发表在《公共科学图书馆·综合类》(PLoSone )中。
"意外诸城角龙"的发现和命名者、中国科学院古脊椎动物与古人类研究所研究员徐星介绍说,这一类恐龙除具有粗壮的下颚和宽大的牙齿等纤角龙鲜明特征外,还具有角龙科恐龙才具有的一些特征,如脊椎扁平、肋骨细长等,但没有角,且颈盾短小,所以将其归类为纤角龙科恐龙。
用"意外"这个词命名主要是因为这件化石产于诸城市龙都街道库沟恐龙化石长廊,其所处的地层中拥有大量零散的鸭嘴龙骨骼化石,而这一纤角龙化石却意外地埋藏于此,不仅关联保存,而且异常完整。此前,纤角龙化石在亚洲非常罕见,主要产地在北美地区。
据了解,目前在诸城恐龙化石埋藏点已发现4种角龙化石,除"意外诸城角龙"外,还发现了北美地区以外唯一的大型角龙化石,被命名为"诸城中国角龙"。另外两种角龙正在研究过程中,也有望填补角龙科研空白。
"可以说诸城是角龙的乐园。"徐星认为,"意外诸城角龙"说明了角龙类恐龙不同种群间的差异性要比之前所认为的大得多;这一化石还证实纤角龙为角龙类恐龙的进步属种,是与角龙科恐龙如"诸城中国角龙"等一起生存在白垩纪恐龙时代最晚期的恐龙,这也为研究白垩纪晚期角龙演化的复杂性提供了一个实证。
目前,这件化石被保存在诸城白垩纪恐龙地质公园内的恐龙化石修复装架中心。
山东诸城是重要的以大型鸭嘴龙类为代表的晚白垩纪恐龙化石产出地。已探明恐龙化石点达30处,曝露化石2万多块,发现了鸭嘴龙类、角龙类、暴龙类、甲龙类、虚骨龙类、蜥脚龙类等10多个属种的恐龙化石,部分属种为世界首次发现。