A fossil snake with limbs

被引：166

作者：

Tchernov, E

Rieppel, O

Zaher, H

Polcyn, MJ

Jacobs, LL

机构：

[1] Field Museum Nat Hist, Dept Geol, Chicago, IL 60605 USA

[2] Hebrew Univ Jerusalem, Dept Evolut Syst & Ecol, IL-91904 Jerusalem, Israel

[3] Univ Sao Paulo, Dept Zool, Inst Biociencias, BR-05508900 Sao Paulo, Brazil

[4] So Methodist Univ, Shuler Museum Paleontol, Dallas, TX 75275 USA

来源：

SCIENCE | 2000年 / 287卷 / 5460期

关键词：

D O I：

10.1126/science.287.5460.2010

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A 95-million-year-old fossil snake from the Middle East documents the most extreme hindlimb development of any known member of that group, as it preserves the tibia, fibula, tarsals, metatarsals, and phalanges. It is more complete than Pachyrhachis, a second fossil snake with hindlimbs that was recently portrayed to be basal to all other snakes. Phylogenetic analysis of the relationships of the new taxon, as well as reanalysis of Pachyrhachis, shows both to be related to macrostomatans, a group that includes relatively advanced snakes such as pythons, boas, and colubroids to the exclusion of more primitive snakes such as blindsnakes and pipesnakes.

引用

页码：2010 / 2012

页数：3

共 24 条

[1]

BARRIE DJ, 1990, MEMOIRS QUEENSLAND M, V28, P139

[2] A snake with legs from the marine Cretaceous of the Middle East [J].