cf. Polycotylidae

O’Gorman, José Patricio & Otero, Rodrigo A., 2023, Revision of the short-necked Cretaceous plesiosaurians from New Zealand, Comptes Rendus Palevol 22 (6), pp. 77-90 : 79

publication ID	https://doi.org/10.5852/cr-palevol2023v22a6
publication LSID	urn:lsid:zoobank.org:pub:AB8DCA69-9BE5-44F1-877D-0E65F73B7186
DOI	https://doi.org/10.5281/zenodo.14224635
persistent identifier	https://treatment.plazi.org/id/0A1587CB-FFB3-7549-8D79-FA4FFEF72C60
treatment provided by	Felipe
scientific name	cf. Polycotylidae
status

Treatment

cf. Polycotylidae

( Fig. 2 I-L)

Polycotylus tenuis – Hector 1874: 335, pl. 27.

Polycotylidae indet . Welles & Gregg 1971: 44.

MATERIAL. — DM R1548 , a juvenile, indeterminate propodium .

LOCALITY AND HORIZON. — No information, but almost certainly from New Zealand ( Welles & Gregg 1971; Fig. 1).

REMARKS

Based on its gracility, DM R1548 probably belongs to a polycotylid. It must be noted that the coeval plesiosaur record from New Zealand includes a very unusual, still indeterminate elasmosaurid (CMZfr 159) that possesses a distinctively elongate propodial ( Hiller et al. 2014: fig. 7), although not so slender as the DM R1548. Similar unusually elongate propodials are known from the late Aptian of Australia, and have also been compared with polycotylids (see Kear 2005: fig. 3A, B). Based on these possibilities, we refer it, with doubts, to cf. Polycotylidae .

Kingdom	Animalia
Phylum	Chordata
Class	Reptilia
SubClass	Sauropterygia
Order	Plesiosauria
SuperFamily	Plesiosauroidea
Family	Polycotylidae