Tratayenia information

Tratayenia; Temporal range: Late Cretaceous, 86–83 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Life restoration
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	Theropoda
Clade:	†Megaraptora
Family:	†Megaraptoridae
Genus:	†Tratayenia; Porfiri et al., 2018
Type species
	†Tratayenia rosalesi; Porfiri et al., 2018

Tratayenia is an extinct genus of megaraptoran theropod dinosaurs known from remains found in the Santonian-age Bajo de la Carpa Formation of Argentina.^[1] The type and only species, Tratayenia rosalesi, was described in March 2018.^[2]

Tratayenia can be distinguished from other megaraptorans on the basis of three autapomorphies (unique derived features) of the front portion of each dorsal vertebra, as well as a single autapomorphy of the sacrum. Tratayenia is one of the youngest known genera of megaraptorans, having lived only about 83 million years ago.

^ Porfiri, Juan D; Juárez Valieri, Rubén D; Santos, Domenica D.D; Lamanna, Matthew C (2018). "A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia". Cretaceous Research. 89: 302–319. doi:10.1016/j.cretres.2018.03.014.
^ Fonseca, Lurdes (28 March 2018). "Just out | A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia @ Cretaceous Research". Paleowire.

[Porfiri_2018-1] Porfiri, Juan D; Juárez Valieri, Rubén D; Santos, Domenica D.D; Lamanna, Matthew C (2018). "A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia". Cretaceous Research. 89: 302–319. doi:10.1016/j.cretres.2018.03.014.

[Fonseca_2018-2] Fonseca, Lurdes (28 March 2018). "Just out | A new megaraptoran theropod dinosaur from the Upper Cretaceous Bajo de la Carpa Formation of northwestern Patagonia @ Cretaceous Research". Paleowire.

Tratayenia information

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