Agnathans and the origin of jawed vertebrates
Abstract
The origins of jawed vertebrates (gnathostomes) lie somewhere within the ranks of long-extinct jawless fishes, represented today as the lampreys and hagfishes. Recent discoveries of hitherto unknown kinds of jawless fishes (agnathans), together with re-examination of known agnathans and advances in systematic methods, have revitalized debates about the relationships of ancient fishes and given fresh insights into early vertebrate history.
- Publication:
-
Nature
- Pub Date:
- January 1993
- DOI:
- 10.1038/361129a0
- Bibcode:
- 1993Natur.361..129F