A Pelican Tarsometatarsus (Aves: Pelecanidae) from the Latest Pliocene Siwaliks of India
文献类型：期刊论文
| 作者 | Stidham, Thomas A.1; Krishan, Kewal2; Singh, Bahadur2; Ghosh, Abhik2; Patnaik, Rajeev3 |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2014-11-03 |
| 卷号 | 9期号:11 |
| 文献子类 | Article |
| 英文摘要 | We report a new fossil specimen of a pelican from the Tatrot Formation of the Siwalik Hills, India. It likely represents Pelecanus sivalensis Davies, 1880, the smaller of the two previously published species from the Siwalik Group stratigraphic sequence. This complete tarsometatarsus is the first fossil bone of a pelican collected in India for over 100 years. It is from the latest Pliocene (similar to 2.6 Ma), and is the youngest pelican fossil from the region. The new specimen exhibits a derived distoplantar 'slant' to the plantar margin of the medial crest of the hypotarsus, and a combination of features related to the morphology of the hypotarsus, the distal foramen, trochleae, and overall size that allow further differentiation from known tarsometatarsi of fossil and extant pelicans, including the three species of extant pelicans that occur in India ( Pelecanus crispus, P. onocrotalus, and P. philippensis). It is of appropriate size for Pelecanus sivalensis, which to date has been known only by fragments of other skeletal elements of the wing, leg, and shoulder girdle. Thus, the observation that this tarsometatarsus is morphologically distinct from those of known pelicans provides further support for the distinctiveness of at least one extinct species of pelican from the Siwalik Group sediments. While the morphology of the tarsometatarsus allows for separation from other taxa known from tarsometatarsi, we found no clear shared derived states to place this taxon with any confidence in a phylogenetic context relative to any other pelican species, or even determine if it is part of the crown group of Pelecanidae. However, published molecular data are consistent with an origin of the crown clade prior to the Pleistocene, suggesting (along with one morphological character) the possibility that this species belongs to the Old World clade of pelican species. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000345558100055 |
| 源URL | [http://124.16.247.212/handle/311034/7361]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Systemat, Beijing, Peoples R China 2.Panjab Univ, Dept Anthropol, Chandigarh 160014, India 3.Panjab Univ, Dept Geol, Chandigarh 160014, India |
| 推荐引用方式 GB/T 7714 | Stidham, Thomas A.,Krishan, Kewal,Singh, Bahadur,et al. A Pelican Tarsometatarsus (Aves: Pelecanidae) from the Latest Pliocene Siwaliks of India[J]. PLOS ONE,2014,9(11). |
| APA | Stidham, Thomas A.,Krishan, Kewal,Singh, Bahadur,Ghosh, Abhik,&Patnaik, Rajeev.(2014).A Pelican Tarsometatarsus (Aves: Pelecanidae) from the Latest Pliocene Siwaliks of India.PLOS ONE,9(11). |
| MLA | Stidham, Thomas A.,et al."A Pelican Tarsometatarsus (Aves: Pelecanidae) from the Latest Pliocene Siwaliks of India".PLOS ONE 9.11(2014). |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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