PBDB Taxon

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

Avisaurus archibaldi

Reptilia - Avisauridae

Taxonomy

Avisaurus archibaldi was named by Brett-Surman and Paul (1985). Its type specimen is UCMP 117600, a limb element (left metatarsus), and it is a 3D body fossil. Its type locality is Brownie Butte, which is in a Lancian terrestrial sandstone in the Hell Creek Formation of Montana.

Sister species lacking formal opinion data

A. darwini

Year	Name and author
1985	Avisaurus archibaldi Brett-Surman and Paul p. 137 fig. 3
1994	Avisaurus archibaldi Chiappe and Calvo p. 237
1995	Avisaurus archibaldi Frey and Martill p. 409
1995	Avisaurus archibaldi Sanz et al. p. 18 fig. 15
1995	Avisaurus archibaldi Varricchio and Chiappe p. 201 fig. 2
2004	Avisaurus archibaldi Padian p. 212
2010	Avisaurus archibaldi Zanno et al. p. 181
2014	Avisaurus archibaldi O'Connor et al.

Time interval	Ma	Country or state	Original ID and collection number
Lancian	72.2 - 66.0	USA (Montana)	Avisaurus archibaldi (type locality: 14515)
Lancian	72.2 - 66.0	USA (North Dakota)	Avisaurus archibaldi (14610)