The earliest known fully quadrupedal sirenian by Daryl P. Domning (source code)

= The earliest known fully quadrupedal sirenian by Daryl P. Domning
{c}
{title2=2001}

https://www.nature.com/articles/35098072[Publication record or author/institutional full text].

First author: <Daryl P. Domning>. Nature 413, pp. 625–627; Pezosiren locomotor and aquatic character mosaic.