The first specimen of Camarasaurus (Dinosauria: Sauropoda) from Montana: The northernmost occurrence of the genus
Fig 4
Skull of GPDM 220 in right lateral [I], dorsal [II], anterior [III] posterior [IV], and left lateral [V] views. Note the red inset box in the dorsal view (II) which highlights the postparietal aperture (indicated by the white arrow). All orientations to scale. Scale bar = 10 cm. Abbreviations: l. left, r. right, aof antorbital fenestra, bo basioccipital, eo exoccipital, en external naris, f frontal, fm foramen magnum, itf infratemporal fenestra, j jugal, l lacrimal, m maxilla, n nasal, o orbit, oc occipital condyle, p parietal, pm premaxilla, po postorbital, pt pterygoid, pop paraoccipital process, prf prefrontal, sp squamosal, stf supratemporal fenestra, q quadrate, qj quadratojugal.
