Halasya Mahatmiyam was part of skanda purana.
How Madurai Purana – Halasya ( Madurai) – was known in Gupta period is interesting?
It is not an addition made in South either.
Shyamala Dhandakam attributed to Kalidasa is on Meenakshi of Madurai where he mentions Kalyani, Kadmba vana vasini. Again Kadamba Vana is Madurai.
Lalitha Sahsranam which is part of Brahmanda Purana mentions 1. Kamakshi 2. Odyana Peeta Nilaya refering to Kanchi 3. Kadmba Vana vasini.
We also saw Valmiki Ramayan mentioning Swetaranya -Thiruvenkadu and mentions Siva Slaying Yama.
Sangam mentions many skanda leela, ( skanda Puaranam), Krishna Leela ( Bhagavata Purana), Siva leela and Devi leela. ( Siva Purana and Brahmanda Purana)
Hence The puranas might not have been of Gupta origin.
Sankar