Journal of Vertebrate Paleontology ( IF 1.4 ) Pub Date : 2020-07-22 , DOI: 10.1080/02724634.2020.1762627 Alison M. Murray 1
The Sangkarewang Formation of the Ombilin Basin in Sumatra, Indonesia, has been known for its fossil fishes for over 150 years, and a monograph on the fishes from freshwater deposits of the basin was published over 80 years ago. Most of the material previously reported was placed in living genera; however, based on reexamination of some previously collected material and newly collected material, none of the taxa from these deposits are considered to be congeneric with any modern fishes. New collections, from paper shales representing deeper water in the paleolake than that previously sampled, are composed predominantly of cyprinoid fishes. Two previously unreported cyprinoid taxa are here named as new: Sangkarewangia sumatranus, gen. et sp. nov., and Hadromos sandersae, gen. et sp. nov. The previously described Puntius bussyi is removed to Pauciuncus, gen. nov., yielding Pauciuncus bussyi, comb. nov. All of the cyprinoids from the formation, those reported here as new as well as those previously reported, are assessed for their possible subfamily affinities. Most belong to Barbinae, with Labeoninae, Smiliogastrinae, and Rasborinae tentatively represented. The age of the Sangkarewang Formation has been controversial; it has been variously attributed to Cretaceous, Paleocene, Eocene, and Miocene. Although the fish fauna does not definitively date the formation, recent studies support an early to mid-Eocene age, and the ichthyofauna does not contradict this.
中文翻译:
来自印度尼西亚苏门答腊的早期新生代类人猿(Ostariophysi:犬形目:Cyprinidae和Danionidae)
印度尼西亚苏门答腊的Ombilin盆地的Sangkarewang组以化石鱼类而闻名,已有150多年的历史,而该盆地淡水沉积物的鱼类专着则出版于80年前。先前报道的大多数材料都放在活着的属中。但是,根据对某些以前收集的材料和新收集的材料的重新检查,这些沉积物中的任何分类单元都不会被认为与任何现代鱼类属同一类。来自纸页岩的新收集物主要代表塞浦路斯鱼类,这些纸页岩代表了古湖中比以前取样的水深的水。在此,两个以前未报告的赛普拉斯类群被命名为新的:Sangkarewangia sumatranus,gen。等。十一月和Hadromos sandersae,gen。等。十一月 先前描述的Puntius bussyi被移除到Pauciuncus,gen。十一月,产生Pauciuncus bussyi,梳子。十一月 评估了地层中所有的类环素,此处报道为新的以及先前报道的,以评估其可能的亚家族亲和力。大部分属于Barbinae,暂定有Labeoninae,Smiliogastrinae和Rasborinae。Sangkarewang组的年龄一直存在争议;它被不同地归因于白垩纪,古新世,始新世和中新世。尽管鱼类动物群并没有确定日期,但最近的研究支持始新世早期至中期,鱼鳞鱼并没有与此相矛盾。