When it was first named, Europasaurus was considered to be a taxon within Macronaria that didn't fall within the family Brachiosauridae or the clade Titanosauromorpha.
This indicated that the dwarfism of the taxon was a result of evolution, instead of being a characteristic of a group.
Three matrices were analysed with the inclusion of Europasaurus, that of Wilson (2002) and Upchurch (1998) and Upchurch et al. (
2004).
All analyses resulted in similar phylogenetics, where Europasaurus placed more derived than Camarasaurus but outside a clade of Brachiosauridae and Titanosauromorpha (now named Titanosauriformes).
The results of the favoured analysis of Sander et al. (
2006) are shown below on the left:
 


 
 
 
During a description of the vertebrae of Europasaurus by Carballido & Sander (2013), another phylogenetic analysis was conducted (right column above).
The cladistic matrix was expanded to include more sauropod taxa, such as Bellusaurus, Cedarosaurus and Tapuiasaurus.
The taxon Brachiosaurus was also separated into true Brachiosaurus (B. altithorax) and Giraffatitan (B. brancai), based on Taylor (2009).
Based on this newer and more expansive analysis, Europasaurus was found to be in a similar placement, as a basal camarasauromorph closer to titanosaurs than Camarasaurus.
However, Euhelopus, Tehuelchesaurus, Tastavinsaurus and Galvesaurus were placed between Europasaurus and Brachiosauridae.
When it was first named, Europasaurus was considered to be a taxon within Macronaria that didn't fall within the family Brachiosauridae or the clade Titanosauromorpha. This indicated that the dwarfism of the taxon was a result of evolution, instead of being a characteristic of a group. Three matrices were analysed with the inclusion of Europasaurus, that of Wilson (2002) and Upchurch (1998) and Upchurch et al. (2004). All analyses resulted in similar phylogenetics, where Europasaurus placed more derived than Camarasaurus but outside a clade of Brachiosauridae and Titanosauromorpha (now named Titanosauriformes). The results of the favoured analysis of Sander et al. (2006) are shown below on the left:
 


 
 
 
During a description of the vertebrae of Europasaurus by Carballido & Sander (2013), another phylogenetic analysis was conducted (right column above). The cladistic matrix was expanded to include more sauropod taxa, such as Bellusaurus, Cedarosaurus and Tapuiasaurus. The taxon Brachiosaurus was also separated into true Brachiosaurus (B. altithorax) and Giraffatitan (B. brancai), based on Taylor (2009). Based on this newer and more expansive analysis, Europasaurus was found to be in a similar placement, as a basal camarasauromorph closer to titanosaurs than Camarasaurus. However, Euhelopus, Tehuelchesaurus, Tastavinsaurus and Galvesaurus were placed between Europasaurus and Brachiosauridae.
Europasaurus