Magyarosaurus was estimated to be 1.1 metric tons (1.1 long tons; 1.2 short tons) in weight.
It carried strange dermal armour.
The estimated length of Magyarosaurus is 6 metres (20 ft), according to Curry Rogers et al.. In 2010 Gregory S. Paul gave lower estimations of one tonne with the same length.

Stein et al. (
2010) found that none of Magyarosaurus' close relatives had a reduced size.
That means, for its clade, its small size therefore is a distinguishing autapomorphy.

A distal caudal vertebrae was referred to the genus by Codrea et al. (
2008).
It was probably from near the middle of the tail as it has transitional features.
Before it was definitively buried, the neural arch was broken off, probably by repositioning of the vertebrae from its original position.
Its centrum is elongated, and measures 105 millimetres (4.1 in) long.
Both sides that would have articulated with vertebrae were severely damaged.
It is assigned to Magyarosaurus on the basis that no other sauropods are known from the region it was found in, and the fact that it is located between the two vertebrae compared with it because of its intermediate morphology.
Magyarosaurus was estimated to be 1.1 metric tons (1.1 long tons; 1.2 short tons) in weight. It carried strange dermal armour. The estimated length of Magyarosaurus is 6 metres (20 ft), according to Curry Rogers et al.. In 2010 Gregory S. Paul gave lower estimations of one tonne with the same length.
Stein et al. (2010) found that none of Magyarosaurus' close relatives had a reduced size. That means, for its clade, its small size therefore is a distinguishing autapomorphy.
A distal caudal vertebrae was referred to the genus by Codrea et al. (2008). It was probably from near the middle of the tail as it has transitional features. Before it was definitively buried, the neural arch was broken off, probably by repositioning of the vertebrae from its original position. Its centrum is elongated, and measures 105 millimetres (4.1 in) long. Both sides that would have articulated with vertebrae were severely damaged. It is assigned to Magyarosaurus on the basis that no other sauropods are known from the region it was found in, and the fact that it is located between the two vertebrae compared with it because of its intermediate morphology.
Magyarosaurus