@article{oai:niigata-u.repo.nii.ac.jp:00006812, author = {Li, Gang and Matsuoka, Atsushi}, journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)}, month = {Mar}, note = {Restudy of the type species of Tylestheria from the First Member of the Upper Cretaceous Nenjiang Formation in Nenjiang County, north-east China under a scanning electron microscope (SEM) revealed morphological features on the carapace that had not been recognized previously: growth lines with serrated lower margins; growth bands near the umbo and in the middle part of the carapace with intercalated fine reticulation between relatively widely spaced radial lirae; growth bands in the ventral part of the carapace ornamented with radial lirae and punctae. According to the recent radiometric dating and magnetostratigraphic data of the Late Cretaceous deposits in the Songliao Basin, the Tylestheria-bearing horizons of the Nenjiang Formation (Songliao Basin) and the Majiacun Formation (dinosaur egg bearing Xixia Basin, Henan) were revised to be late Santonian in age.}, pages = {51--63}, title = {Revision of clam shrimp (“conchostracan”) genus Tylestheria from Late Cretaceous deposits of China}, volume = {28}, year = {2013} }