In Jainism there is no direct mention of “dinosaurs” or a clear mapping of that scientific era to a specific Jain time‑period, so anything we say is only an approximate alignment, not scripturally exact.

Still, we can understand it in a simple Jain way:

1. Which “time zone” (kāl / era) would the dinosaur age fit in?

According to Jainism:

• Time goes in endless cycles (kāl‑chakra) with two halves:

- Utsarpinī – ascending, conditions improve - Avasarpinī – descending, conditions decline

• Each half has 6 eras (ārās). We are now in 5th ara of Avasarpinī (Duṣamā) in Bharat Kṣetra. ( jainknowledge.com)

The dinosaur era was very, very ancient compared to recorded human history. On Jain scales, that would be:

• Somewhere earlier in this Avasarpinī, most likely before our current 5th ara, i.e. during the 3rd or 4th ara of Avasarpinī.
• But: Jain texts do not say this explicitly. They only describe very long lifespans, huge bodies, different human/animal types, not “dinosaurs” by name.

So: > From a Jain perspective, dinosaurs would belong to some earlier phases of the present Avasarpinī half‑cycle, not to our current 5th ara; but the exact ara and dating are not given in scripture.

2. Which continent / kṣetra?

In Jain cosmology, our Earth (where we live and where dinosaurs fossils are found) is part of:

• Jambudvipa – the central continent in the middle world. ( jainknowledge.com)
• Within Jambudvipa, our human region is Bharat Kṣetra (Bharata‑kṣetra), roughly corresponding to the Indian subcontinent and surrounding lands. ( jainknowledge.com)

So, in Jain terms:

> Dinosaurs would be beings of Jambudvipa, in Bharat Kṣetra (and possibly other regions of Jambudvipa) – not of some other dvīpa or upper/lower world.

3. Are dinosaurs connected with Mahāvideh Kṣetra?

• Mahāvideh Kṣetra is a special central region of Jambudvipa where Tirthankars are always present and preaching, even now. ( jainknowledge.com)
• It is a separate kṣetra, not reachable from Bharat by physical travel; one must take rebirth there.

Jain scriptures:

• Do not describe dinosaurs in Mahāvideh Kṣetra.
• Mainly discuss Mahāvideh in terms of present living Tirthankars, like Simandhar Swami, and human spiritual conditions there.

So:

> The “dinosaur era” is best understood as belonging to Bharat Kṣetra of Jambudvipa in very ancient times, not specifically to Mahāvideh Kṣetra.

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In summary, keeping it simple:

• Jainism does not directly talk about dinosaurs.
• On Jain time‑scale, they would fit into a very early part of the current Avasarpinī, before our present 5th era.
• Geographically, they belong to Jambudvipa, mainly Bharat Kṣetra (our Earth region), not specially to Mahāvideh.

If you want a basic overview of the Jain time‑cycle and kṣetras, you can read more here and here .