Dicerocardium jani Stoppani, 1860

Teruzzi, Giorgio, 2015, The Stoppani Collection of Large Bivalves (Bivalvia, Megalodontida) from the Upper Triassic of Lombardy, Italy, Natural History Sciences 2 (1), pp. 15-24 : 16

Dicerocardium jani Stoppani, 1860 -65

MSNM i 28034 a,b,c - Fig. 4

Dicerocardium jani Stoppani, 1860 -65, T. 41-42.

Reconstruction of a right valve (2 copies, MSNM i 28034 a,c); reconstruction of a left valve, MSNM i28034 b. Stoppani stated (p. 244) that he figured at Tab. 41, 42 and 43 the only specimen with intact umbos, integrating the missing part of the shell with that of other specimens. He did not mention creating reconstructions of both valves, as he had done for C. infraliasicus . In the reconstruction, the right and the left valve fit perfectly together: the two halves are remarkably similar to the illustration of D. jani (T. 41-42), and are also the same size. When viewed at the correct angle, the right valve is exactly the same as that drawn in T. 43. Internal views of two separated valves of D. jani are given in Stoppani, 1873, p. 364, fig. 67; the illustration is not as accurate as that of the plates in Paléontologie Lombarde and may have been executed directly from the reconstructions in question.

Figures

Fig.4 - MSNM i28034 a,b. Plaster reconstruction of the shell of Dicerocardium jani Stoppani 1860-65, as in Stoppani, 1860-65, Tavv. 41-42.A) anterior view. B) posterior view. x 0.28 ca.