Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Nov 23;305(7):1563–1591. doi: 10.1002/ar.24820

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2021 The Authors. The Anatomical Record published by Wiley Periodicals LLC on behalf of American Association for Anatomy.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

PMC Copyright notice

Systematic position of wing‐propelled diving birds (bolded) and their near outgroups in Aves. The tree is simplified from Ksepka et al. (2020) with the position of Cinclidae modified based on Oliveros et al. (2019) and the position of Plotopteridae based on Mayr et al. (2021)