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Fish, amphibian and reptilian assemblage from the middle Miocene locality Gračanica—Bugojno palaeolake, Bosnia and Herzegovina
Palaeobiodiversity and Palaeoenvironments ( IF 1.4 ) Pub Date : 2019-06-17 , DOI: 10.1007/s12549-019-00381-8
Davit Vasilyan

This paper presents the first fossil fish, amphibian and reptilian fauna from Bosnia and Herzegovina Dinarides. The fauna of ectothermic vertebrates of the Bugojno palaeolake, dated to 15.2–14.0 Ma, composes of killifishes (Cyprinodontiformes indet.), a barb (Barbini indet. (aff. Barbus), a crocodile newt (Chelotriton sp.), a painted frog (Latonia sp.) and a crocodile (Alligatoroidea indet. [?Diplocynodon]). The crocodile remains are confined to the lower part of the section corresponding to the swamp deposit (unit 1). The remaining fauna, which includes fishes and amphibians, come from the upper lacustrine unit 2. A possible Barbus (Barbini indet. (aff. Barbus)) could represent one of the oldest fossil records of the genus found in Europe, which composes of skeletal elements and pharyngeal teeth. The crocodile newt (Chelotriton sp.) represents the first record of this group from the area. For the first time, fossil tadpoles of the genus Latonia are described in this paper, which, moreover, are the first record of tadpole for both the family Discoglossidae and clade of discoglossoid frogs. The crocodile remains, identified as Alligatoroidea indet., should belong to the genus Diplocynodon, which will be tested later on a better preserved material. The fossils, coming from the lacustrine interval, are referred to the deeper water facies. Taphonomic observations of the fossil remains suggest relatively short phase of decay of the animal bodies and their (probably quick) sedimentation in the deeper parts of the lake, with poor oxygen content.

中文翻译:

来自中新世中部地区Gračanica(波斯尼亚和黑塞哥维那的Bugojno古湖)的鱼类,两栖动物和爬虫类动物的组合

本文介绍了来自波斯尼亚和黑塞哥维那Dinarides的第一批化石鱼,两栖动物和爬行动物。在布戈泽诺palaeolake的ectothermic脊椎动物巴比尼indet(AFF该动物群,距今15.2-14.0马,killifishes的组成(鳉形目indet),一个倒钩(),鳄鱼蝾螈(Chelotriton属),涂漆的青蛙(Latonia sp。)和一条鳄鱼(Alligatoroidea indet。[?Diplocynodon ])。鳄鱼遗骸被限制在沼泽沉积物(单元1)的下部,其余的动物包括鱼类和两栖动物,来自上部湖泊单元2,一种可能的(巴比尼indet。(AFF。))可以代表欧洲发现的最古老的化石记录之一,它由骨骼元素和咽齿组成。鳄鱼newChelotriton sp。)代表了该地区的第一批记录。本文首次描述了拉托尼亚属的化石t ,这也是Disc科和and类蛙类进化的the记录。鳄鱼遗骸,被确认为短吻鳄,应属于Diplocynodon,稍后将在保存更好的材料上进行测试。来自湖相间隔的化石被称为深水相。对化石遗迹的塔基力学观察表明,动物体的腐烂期相对较短,并且它们在湖泊深处的沉积(可能很快),含氧量很低。
更新日期:2019-06-17
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