The
type species Panamericansaurus schroederi was named and described by
Jorge Orlando Calvo and
Juan Domingo Porfiri in
2010. The generic name refers to the Pan American Energy company which financially supported the paleontological investigations. The
specific name honours the Schroeder family on whose land the remains were found. The describers placed
Panamericansaurus in a
clade within the
Titanosauridae, the
Aeolosaurini, of which also
Aeolosaurus and
Gondwanatitan are also members. The
holotype,
MUCPv-417, was found in June 2003 in a layer of the
Allen Formation (
Campanian-
Maastrichtian) near
San Patricio del Chañar, in
Neuquén, Argentina. It consists of five tail vertebrae, a sacral vertebra, a left humerus,
haemal arches and rib fragments. The humerus is 123 centimetres long. The length of the holotype individual has been estimated at . ==References==