Holotype: A trackway in situ (142 m long with 94 consecutive manus- pes print sets; reference G5) at the Galinha tracksite classified as a Natu- ral Monument — Monumento Natural das Pegadas de Dinossaurio da Serra de Aire (Serra de Aire Dinosaur Tracks Natural Monument), Por- tugal. In MNDPDSA centre there is a cast with a sequence of a left manus print, two pairs of manus-pes prints and a right pes print (refer- ence MNDPDSA-GS).

Type horizon: Serra de Aire Formation, close to the Bajocian — Batho- nian boundary, Middle Jurassic (Azeredo 1993; Azeredo et al. 1995). Type los~hi,ty: Galinha tracksite, Municipal area of Bairro, Serra de Aire, West-Central Portugal.

Diagnosis.— %ide gauge sauropod trackway revealing low heteropody (manus-pes area ratio I:2) and two autapomor- phies: (I) asymmetric manus prints with large digit I marks oriented in a medial direction with a large, posteriorly ori- ented, triangular claw mark, and impressions of digits II, III, IV and V; (2) pes prints with four claw marks: claws I — II with an anterior orientation, and III — IV laterally oriented. Manus digits II — V show a slightly bent arrangement.

Description.— This trackway is a wide gauge sauropod track- way with an inner trackway width 1.2 times the footprint width (Wit/Pw; see Tables I and 2, Fig. 5). The manus prints are wider than long with a rounded lateral edge (digit mark V), a large digit I mark oriented in a medial direction and with a large, posteriorly oriented, triangular claw mark I, and impres- sions of digits II — IV (Fig. 4A). Other manus prints of trackway 65 show digit II — IV marks at the anterior margin. The pes prints are longer than wide, oval shaped, and have four claw marks (claws I — II with an anterior orientation, and III — IV lat- erally oriented). The ichnospecies shows low heteropody (the pes area is about twice the manus print area). Occasionally, the manus print centres are closer to the trackway midline than the