UvA M 4895, consisting of two cervical vertebrae from a different individual, was assigned as a paratype, referred because it was found in the same lot of 25 chalk nodules bought from collectors. Additional remains, including a notarium (fused vertebrae supporting the shoulder) were subsequently referred to the taxon by Wellnhofer et al.
A specimen consisting of two cervical vertebrae from a different individual was designated as a paratype and referred because it originated from the same collection of 25 chalk nodules purchased from collectors. Additional remains, including a notarium, were later associated with the taxon by Wellnhofer et al.