Skandapurana 16.98.3

16.98.3

tretāyugamukhe devi pṛthivyā saṃpratiṣṭhitam..
pūrvamanvaṃtare cāsmim̐lliṅgaṃ pṛthvīśvaraṃ priye .. 3 ..

At the beginning of the Tretāyuga, O goddess, it was established by the Earth; / and in that former manvantara, O beloved, the liṅga was [known as] Pṛthvīśvara. 3