脊椎动物的进化：无颌类头部顺应潮流。

Vertebrate Evolution: Jawless Heads Go with the Flow.

作者信息

Johanson Zerina

机构信息

Department of Earth Sciences, Natural History Museum, London, UK.

出版信息

Curr Biol. 2020 Dec 7;30(23):R1431-R1433. doi: 10.1016/j.cub.2020.09.055.

DOI:10.1016/j.cub.2020.09.055

PMID:33290712

Abstract

New hydrodynamic analyses demonstrate that Palaeozoic jawless vertebrates, laden with heavy bony armour, were active, capable swimmers. This challenges previous hypotheses suggesting they were bottom feeders and impacts our understanding of the evolutionary transition from jawless to jawed vertebrates.

摘要

新的流体动力学分析表明，身披厚重骨质甲胄的古生代无颌脊椎动物是活跃的、具备游泳能力的。这对之前认为它们是底栖生物的假说提出了挑战，并影响了我们对从无颌脊椎动物到有颌脊椎动物进化转变的理解。