FIRST FOSSIL LAMPREY - A RECORD FROM PENNSYLVANIAN OF ILLINOIS

被引：74

作者：

BARDACK, D

ZANGERL, R

机构：

[1] Department of Biological Sciences, University of Illinois, Chicago, IL

[2] Department of Geology, Field Museum of Natural History, Chicago, IL

来源：

SCIENCE | 1968年 / 162卷 / 3859期

关键词：

D O I：

10.1126/science.162.3859.1265

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 fossil record of lampreys has previously been unknown. A new genus demonstrates the presence of this group in the Pennsylvanian. The body outline, parts of the head skeleton, rasping tongue mechanism, gill basket, and other internal organs are preserved. The fossils are very similar in structure to modern forms. The absence of hagfish characters in the fossil supports the view that the common ancestor of lampreys and hagfishes lived prior to the Pennsylvanian.

引用

页码：1265 / &

共 11 条

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