Agni Purana 50.31

50.31

gajacarmabhṛdūrdhvāsyapādā syāt rudracarcikā /
saiva cāṣṭabhujā devī śiroḍamarukānvitā //

wearing an elephant skin, with feet raised upward, Rudracarcikā should be. / That very goddess has eight arms, endowed with a severed head and hand-drum;