Aside from being a very small neosauropod, Europasaurus was thought to have multiple unique morphological features to distinguish it from close relatives by its original describers, Sander et al. (
2006).
The nasal process of the premaxilla was thought to curve anteriorly while projecting upwards (now known to be preservational), there is a notch on the upper surface of the centra of cervical vertebrae, the scapula has a prominent process on the posterior surface of its body, and the astragalus (an ankle bone) is twice as wide as tall.

When compared to Camarasaurus, Europasaurus has a different morphology of the postorbital where the posterior flange is not as short, a short contact between the nasal and frontal bones of the skull, the shape of its parietal (rectangular in Europasaurus), and the neural spines of its vertebrae in front of the pelvis are unsplit.
Comparisons with Brachiosaurus (now named Giraffatitan) were also mentioned, and it was identified that Europasaurus has a shorter snout, a contact between the quadratojugal and squamosal, and a humerus (upper forelimb bone) that has flattened and aligned proximal and distal surfaces.
There were finally quick comparisons to the potential brachiosaurid Lusotitan, which has a different ilium and astragalus shape, and Cetiosaurus humerocristatus (named Duriatitan), which has a deltopectoral crest that is less prominent and extends across less of the humerus.
Aside from being a very small neosauropod, Europasaurus was thought to have multiple unique morphological features to distinguish it from close relatives by its original describers, Sander et al. (2006). The nasal process of the premaxilla was thought to curve anteriorly while projecting upwards (now known to be preservational), there is a notch on the upper surface of the centra of cervical vertebrae, the scapula has a prominent process on the posterior surface of its body, and the astragalus (an ankle bone) is twice as wide as tall.
When compared to Camarasaurus, Europasaurus has a different morphology of the postorbital where the posterior flange is not as short, a short contact between the nasal and frontal bones of the skull, the shape of its parietal (rectangular in Europasaurus), and the neural spines of its vertebrae in front of the pelvis are unsplit. Comparisons with Brachiosaurus (now named Giraffatitan) were also mentioned, and it was identified that Europasaurus has a shorter snout, a contact between the quadratojugal and squamosal, and a humerus (upper forelimb bone) that has flattened and aligned proximal and distal surfaces. There were finally quick comparisons to the potential brachiosaurid Lusotitan, which has a different ilium and astragalus shape, and Cetiosaurus humerocristatus (named Duriatitan), which has a deltopectoral crest that is less prominent and extends across less of the humerus.
Europasaurus