patrician, as is clear from the fact of T. Genucius Augurinus having been consul in B. C. 451, and M. Genucius Augurinus in B. C. 445, since in those years plebeians were not yet allowed to hold the consulship. In the earliest as well as in the later times we find plebeian Genucii, who acted as strenuous champions of their order; and they had probably become plebeians in the usual manner, either by mixed marriages or by transition to the plebs. The cognomens of this gens are AVENTINENSIS, AUGURINUS, CIPUS, CLEPSINA.
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890