Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 89. (Budapest 1997)

Vremir, M., Codrea, V. ; Farkas, B.: Trionyx stiriacus Peters, 1855 (Reptilia, Testudines) from the Sarmatian (Middle Miocene) of Minişu de Sus (Romania)

Table 4. MTB V-23; dimensions of neurals (in mm) No. Length Anterior width Posterior width Maximal width N 3 20* 8* 16* N4 34 10* 1 1 17* N 5 31 10 12 16 N6 28 15 9 15 N7 15 14* 14* mated: carapace length (CL), 325 mm; maximum carapace width (CW) at the level of P 4, 336 mm. The index CL/CW is 0.96. MTB 21636/2 (Figs 1, 3) - The remains of the plastron include the distal half of the hyo- and hypoplastra, as well as the xiphiplastron sin. The hyo- and hypoplastra show a morphology specific for the genus Trionyx (sensu lato), comparable to that of the species T. stiriacus, with clearly visible digited apophyses, better developed than those of the xiphiplastron. The hyoplastron is mainly preserved as an imprint, presenting an anterior margin with a slightly curved line and three well-developed middle-anterior apophyses. On the axial line, the bone has a length of 40 mm. The hypoplastron is broad in its distal extremity, its marginal border presents a continuous line that surrounds the central fontanel as well as the six middle-posterior apophyses, very smooth, well-developed, having lengths of 6-14 mm. The caudal part shows a sinuous line, which enables the estimation of the probable orientation of the marginal apophyses, enclosing an angle of approximately 95°. The length of the proximal side is approximately 41 mm, the apophyses are grouped in a posterior direction following the formula 3-2-1, the last one being isolated. The xiphiplastron is triangular shaped, enlarged anteriorly, with its distal margin slightly curved to the inside. The cranial side has a width of 60 mm and a length of approximately 65 mm on the axial side. Endoskeletal bones: cervical vertebrae, the last two being preserved, yet in an extremely poor condition, with lengths of 40—41 mm; humerus sin., recovered in a bad state of preservation. The dorsal part is clearly visible, with damaged epiphysis and a complete diaphysis. The proximal epiphysis with its humeral head pointing towards the internal part is rather narrow, showing less evolved medial and delto-pectoral processes, which probably continue within the rock. Length, 82 mm; proximal width, 25 mm; elements of the scapular belt: a proximal fragment of the coracoid anatomically connected Table 5. TCM 8377; dimensions of pleurals (in mm) No. Length Length without free rib ends Distal width Proximal width P 1 50 27 24 11 P 2 70 41 23 15 P 3 65* 46 21 15.5 P4 76.5 48 21 15 P 5 58* 45 20 13 P6 44 36 17 13 P7 30 25 15 10 (* - incomplete)