Periphragnis

Periphragnis; Temporal range: Middle Eocene-Early Oligocene; ~
	Fossilized remains of Periphragnis exactus.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Isotemnidae
Genus:	†Periphragnis; Roth 1899
Type species
	†Periphragnis harmeri; Roth, 1899
Species
	P. circunglexus Ameghino 1901; P. cristatus Roth 1904; P. exauctus Ameghino 1902; P. harmeri Roth 1899; P. palmeri Roth 1904; P. vicentei Bradham et al 2015;
Synonyms
	Coelodontherium Roth 1903; Lemudeus Roth 1903; Proasmodeus Ameghino 1902; Tehuelia Roth 1902;

Periphragnis is an extinct genus of isotemnid notoungulates that lived from the Middle Eocene to the Early Oligocene in what is now Argentina and Chile.

Periphragnis Temporal range: Middle Eocene-Early Oligocene ~

Fossilized remains of Periphragnis exactus.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Isotemnidae
Genus:	†Periphragnis Roth 1899
Type species
†Periphragnis harmeri Roth, 1899
Species
P. circunglexus Ameghino 1901 P. cristatus Roth 1904 P. exauctus Ameghino 1902 P. harmeri Roth 1899 P. palmeri Roth 1904 P. vicentei Bradham et al 2015
Synonyms
Coelodontherium Roth 1903 Lemudeus Roth 1903 Proasmodeus Ameghino 1902 Tehuelia Roth 1902