Given dates (all in the Common Era) are approximate and represent the upper and lower possible extremes of the person's lifetime.
The wrong retranslation of the name dge (b)srung(s) as *Kalyāṇarakṣita by Vidyabhusana 1909, p. 328, is unfortunately still found in more recent literature (Correction: Frauwallner 1933 p. 240; cf. Hattori M. 1960; Miyasaka 1959 pp. 53f.).
Kamalaśīla calls him Bhadanta Śubhagupta; representative of the Vaibhāṣika school; teacher of Dharmottara (doubtful) [according to Bu ston (cf. Obermiller 1931 II p. 155)]; life dates: 720–780 (Frauwallner 1961 p. 147).