Pezosiren portelli
= Pezosiren portelli
{c}
An <Eocene> Jamaican sirenian retaining four substantial limbs and a strong sacroiliac connection alongside aquatic specializations. It informs the terrestrial-to-aquatic transition without being demonstrated to be a direct ancestor. <The earliest known fully quadrupedal sirenian by Daryl P. Domning>[Nature 413, pp. 625–627; Pezosiren locomotor and aquatic character mosaic]{ref}