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Bone histology of Thalassocnus. (a,b) General views of a rib (cross sections approximately at midlength in natural transmitted light) of (a) juvenile T. littoralis (MNHN.F.SAS 2) and (b) adult T. littoralis (MNHN.F.SAS 53). (c) Remodelled trabeculae in the medulla of the radius of T. littoralis (MNHN.F.SAS 53). (Online version in colour.)
