Rauhut and colleagues in 2005 noted that the tendency towards shorter-necks seen in dicraeosaurids, and most evident in Brachytrachelopan, runs counter to the lengthening of the neck seen in most sauropod lineages (brachiosaurids, titanosaurs, diplodocids, etc.) and indicates that this group of sauropods was "progressively adapting for low browsing and might have been specialized on specific food sources, as has been suggested for Amargasaurus and Dicraeosaurus."
Rauhut and colleagues in 2005 observed a trend towards shorter necks in dicraeosaurids (specifically Brachytrachelopan), which contrasts with the lengthening of necks seen in most sauropods like brachiosaurids, titanosaurs, and diplodocids. This suggests that dicraeosaurids were likely adapted for low-level browsing and may have specialized on specific food sources, similar to Amargasaurus and Dicraeosaurus.