PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Velocisaurus unicus

Reptilia - Noasauridae

Taxonomy

Velocisaurus unicus was named by Bonaparte (1991). Its type specimen is MUCPv-41, a set of limb elements, and it is a 3D body fossil. Its type locality is Universidad Nacional del Comahue (W), which is in a Santonian fluvial-deltaic sandstone in the Bajo de la Carpa Formation of Argentina.

Year	Name and author
1991	Velocisaurus unicus Bonaparte p. 70 figs. 20-21
1994	Velocisaurus unicus Chiappe and Calvo p. 231
1995	Velocisaurus unicus Frey and Martill p. 408
1996	Velocisaurus unicus Bonaparte p. 93
1997	Velocisaurus unicus Novas p. 683
2003	Velocisaurus unicus Rauhut p. 33
2004	Velocisaurus unicus Tykoski and Rowe p. 49
2005	Velocisaurus unicus Candeiro and Martinelli p. 9
2005	Velocisaurus unicus Novas et al. p. 169
2005	Velocisaurus unicus Yates p. 117
2008	Velocisaurus unicus Carrano and Sampson p. 198
2009	Velocisaurus unicus Ezcurra and Méndez p. 547
2010	Velocisaurus unicus Agnolin and Chiarelli p. 296
2011	Velocisaurus unicus Carrano et al. p. 3
2011	Velocisaurus unicus Gianechini et al. p. 7
2012	Velocisaurus unicus Candeiro and Harris p. 74
2013	Velocisaurus unicus Novas et al. p. 176
2014	Velocisaurus unicus Brissón Egli et al. p. 5
2016	Velocisaurus unicus Brissón Egli et al. p. 2
2016	Velocisaurus unicus Cruzado-Caballero et al. p. 53
2016	Velocisaurus unicus Filippi et al. p. 210

Reference	Diagnosis
M. T. Carrano and S. D. Sampson 2008	It is not clear whether Velocisaurus preserves autapomorphies (Rauhut 2003: 33), but it is probably a distinct taxon based on its provenance.
F. Brissón Egli et al. 2016	Small-sized theropod (Table 1) dinosaur diagnosable by the following combination of characters (autapomorphies marked by an asterisk, ): femur with proximal end showing a strongly subtriangular cross-section with lateral and medial surfaces converging anteriorly and resulting in a thick dorsoventral crest; tibia coelurosaur-like, long and slender, with its distal end anteriorly flat, bearing a large surface to accommodate a tall and wide ascending process of the astragalus; metatar- sals II and IV with rod-like shafts, differing from the laminar outer metatarsals present in other small abelisauroids; and pedal phalanx IV-1 anteroposteriorly short, dorsoventraly tall, transversely compressed on its dorsal half, and medially curved.

Time interval	Ma	Country or state	Original ID and collection number
Santonian	85.7 - 83.6	Argentina (Río Negro)	Velocisaurus unicus (84309)
Santonian	85.7 - 83.6	Argentina (Neuquén)	Velocisaurus unicus (type locality: 47796)