sentences:  The specimen NHMUK PV OR40103b, a short series of cervicodorsal vertebrae preserved in matrix, is also a thalattosuchian due to its possession of several apomorphies of the group.However, it does not belong to the same individual as the holotype as the vertebrae are much smaller than those of NHMUK PV OR40103a, and the matrix is of a different composition.It is unclear whether it belongs to "Plesiosuchus" or another metriorhynchid, and therefore it is considered to be Thalattosuchia indeterminate.