Prehistoric Kingdom mixed-species exhibits

[AnimalLoverCJ]

(For context, Prehistoric Kingdom is an early access game where you build a zoo with extinct species, essentially Planet Zoo mixed with a scientifically accurate Jurassic Park)
I've been wanting to make a Mammoth Steppe area analogous to the African Savanna section seen in many zoos, and I've been wondering which species I could use for mixed-species enclosures, since I want my zoo to be realistic. I've compiled a list of potential species below, with in-game stats listed. I would appreciate any suggestions on what species I could keep together.

Coelodonta antiquitatus (Woolly Rhinoceros)
Avg. Length: 5m
Avg. Height: 3m
Avg. Weight: 1.46t
Herd Size: Min 0.3, Max 3.10
Closest extant relative: Sumatran rhinoceros (Dicerorhinus sumatrensis)

Elasmotherium sibiricum ("Siberian Unicorn")
Avg. Length: 6m
Avg. Height: 3m
Avg. Weight: 2.10t
Herd Size: Min 1.1, Max 1.2
Closest extant relative: Rhinoceros (Rhinocerotidae spp.)

Mammuthus primigenius (Woolly Mammoth)
Avg. Length: 7m
Avg. Height: 4m
Avg. Weight: 3.91t
Herd Size: Min 0.3, Max 0.30
Closest extant relative: Asian elephant (Elephas maximus)

Megaloceros giganteus (Irish Elk)
Avg. Length: 3m
Avg. Height: 3m
Avg. Weight: 757kg
Herd Size: Min 1.2, Max 3.12
Closest extant relative: Fallow deer (Dama spp.)

The tarpan (Equus ferus ferus) and steppe bison (Bison priscus) were once planned, and may be added at some point in the future, but remain unconfirmed.

 

[Wisp O' Mist]

The tarpan (Equus ferus ferus)

Tarpan are no longer recognized as an extinct subspecies of wild horse. At best, they were hybrids between feral domesticated horses and genuine wild horses.

 

[AnimalLoverCJ]

Tarpan are no longer recognized as an extinct subspecies of wild horse. At best, they were hybrids between feral domesticated horses and genuine wild horses.

Alright, good to know.

 

[Wisp O' Mist]

Alright, good to know.

If you want a replacement for the Tarpans, then Przewalski's horses would be your best bet. They actually are a genuine wild species and the general consensus is that they do closely resemble ancient wild horses.

 

[AnimalLoverCJ]

I'd love to have Przewalski's horses in the game, but since the game focuses on extinct species, I doubt they'll ever be added.

 

[Wisp O' Mist]

I'd love to have Przewalski's horses in the game, but since the game focuses on extinct species, I doubt they'll ever be added.

You should write to the creators and tell them that Tarpans are no longer recognized as a species, then.

 

[AnimalLoverCJ]

You should write to the creators and tell them that Tarpans are no longer recognized as a species, then.

To be fair, the only mention of tarpans was as a silhouette on a Kickstarter stretch goal 8 years ago that wasn't even reached, so I'm not expecting it to come into the game anytime soon, if ever. The only reason I mentioned it is because "Special Exhibits" (now adapted into Terrariums) also weren't reached, but were still added and will be revamped very soon.
Edit: spelling