Thiornis

Thiornis is a fossil genus of Middle Miocene grebe known from a nearly complete specimen from Libros, Spain. Originally classified as a type of moorhen, Thiornis has since been classified as a species of grebe. The overall anatomy of the bird is identical to modern grebes. It contains a single species, T. sociata.

Thiornis
Temporal range:
Fossil slab of Thiornis sociata
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Podicipediformes
Family: Podicipedidae
Genus: Thiornis
Navás, 1922
Type species
Thiornis sociata
Synonyms

Podiceps sociatus (Navás, 1922) sensu Olson, 1995

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