# Cretaceous floodplain

Walk a 60 by 47 metre floodplain built from the Dinosaurs and Prehistoric Life pack: twenty-one animals at real scale, from velociraptors and a nest with a hatchling to a roaring tyrannosaurus, a brachiosaurus and a diplodocus.

- **URL:** https://3dassets.dev/demos/dinosaurs-and-prehistoric-life
- **Pack:** [Dinosaurs and Prehistoric Life](https://3dassets.dev/packs/dinosaurs-and-prehistoric-life) (45 models)
- **Placed:** 36 instances of 24 models
- **Walkable area:** 60 x 47 m
- **Spawn:** (0, 0, 20), facing 180 degrees
- **Pack starter scene GLB:** https://cdn.3dassets.dev/assets/4928/v1/model.glb
- **Units:** metres, +Y up; rotation is yaw in degrees about +Y

## About

One scene from 24 of the pack's 45 models, on plain ground in the outdoor preset with daylight, among ten tree ferns.

You start at the south edge beside a pack of three feathered velociraptors, a footprint slab and a skull fossil. Ahead are the triceratops pair and a styracosaurus, the roaring tyrannosaurus, and further off the stegosaurus, an ankylosaurus, a pachycephalosaurus, a kentrosaurus, an allosaurus and a dilophosaurus. A nest with eggs and a hatchling sits under a standing quetzalcoatlus, two gallimimus run along the west edge, the spinosaurus and a dimetrodon hold the corners, and the brachiosaurus and diplodocus stand at the north end with a parasaurolophus between them and a pteranodon soaring above.

Nothing moves: this pack ships without animation clips, so every animal holds its pose. The ice age steppe and marine reptiles in the pack are not placed here.

## Points of interest

- **Raptor pack** at (2, 0, 17): Three feathered velociraptors at the edge of the floodplain, with a footprint slab and an exposed skull fossil nearby. Every animal here is at real scale. ([velociraptor feathered (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-velociraptor-feathered-29934bbd))
- **The nest** at (-6, 0, 12.20): A nest with eggs and a hatchling, watched by a standing quetzalcoatlus and a stegosaurus. ([nest with eggs (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-nest-with-eggs-85398c73))
- **Triceratops** at (-2.50, 0, 5.50): A triceratops and a charging triceratops, with a styracosaurus behind them. ([triceratops (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-triceratops-5c18d8d2))
- **Tyrannosaurus** at (6.50, 0, 8): The roaring tyrannosaurus is 12 m long and 6.8 m tall. An allosaurus and a dilophosaurus hunt on the east side. ([tyrannosaurus roaring (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-tyrannosaurus-roaring-70ba5f9b))
- **Sauropods** at (0, 0, -12): A brachiosaurus and a diplodocus at the north end, 22 and 26 m long, with a parasaurolophus between them and a pteranodon overhead. ([brachiosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-brachiosaurus-1f1de62d))
- **Spinosaurus** at (-18, 0, 12): The spinosaurus in the south-west corner, and two gallimimus running along the west edge. ([spinosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-spinosaurus-0194ea79))

## Models used

| Model | Size | Bounds (m) | GLB |
| --- | --- | --- | --- |
| [brachiosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-brachiosaurus-1f1de62d) | 273 KB | 4.65 x 16.52 x 22 | https://cdn.3dassets.dev/assets/4896/v1/model.glb |
| [diplodocus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-diplodocus-3ec5eaa6) | 273 KB | 3.91 x 7.33 x 26 | https://cdn.3dassets.dev/assets/4897/v1/model.glb |
| [parasaurolophus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-parasaurolophus-24b234db) | 222 KB | 3.42 x 5.82 x 9 | https://cdn.3dassets.dev/assets/4903/v1/model.glb |
| [triceratops (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-triceratops-5c18d8d2) | 239 KB | 2.86 x 3.44 x 8.00 | https://cdn.3dassets.dev/assets/4900/v1/model.glb |
| [triceratops charging (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-triceratops-charging-1cf3ca51) | 239 KB | 2.86 x 3.05 x 8.00 | https://cdn.3dassets.dev/assets/4908/v1/model.glb |
| [tyrannosaurus roaring (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-tyrannosaurus-roaring-70ba5f9b) | 469 KB | 4.44 x 6.77 x 12 | https://cdn.3dassets.dev/assets/4895/v1/model.glb |
| [stegosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-stegosaurus-afd95818) | 241 KB | 2.47 x 3.40 x 7.00 | https://cdn.3dassets.dev/assets/4901/v1/model.glb |
| [ankylosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-ankylosaurus-22269c89) | 268 KB | 2.51 x 2.18 x 6 | https://cdn.3dassets.dev/assets/4902/v1/model.glb |
| [allosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-allosaurus-f3570ae2) | 383 KB | 2.93 x 4.32 x 9 | https://cdn.3dassets.dev/assets/4886/v1/model.glb |
| [dilophosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-dilophosaurus-c7856b30) | 373 KB | 1.95 x 2.90 x 6 | https://cdn.3dassets.dev/assets/4894/v1/model.glb |
| [pachycephalosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-pachycephalosaurus-f8596236) | 212 KB | 1.71 x 2.71 x 4.50 | https://cdn.3dassets.dev/assets/4904/v1/model.glb |
| [styracosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-styracosaurus-789c8212) | 276 KB | 1.97 x 2.57 x 5.50 | https://cdn.3dassets.dev/assets/4906/v1/model.glb |
| [kentrosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-kentrosaurus-79c955dd) | 257 KB | 2.07 x 1.91 x 4.50 | https://cdn.3dassets.dev/assets/4907/v1/model.glb |
| [spinosaurus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-spinosaurus-0194ea79) | 370 KB | 4.37 x 7.60 x 14 | https://cdn.3dassets.dev/assets/4887/v1/model.glb |
| [dimetrodon (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-dimetrodon-f056e35b) | 140 KB | 1.26 x 1.48 x 3.20 | https://cdn.3dassets.dev/assets/4920/v1/model.glb |
| [velociraptor feathered (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-velociraptor-feathered-29934bbd) | 415 KB | 0.51 x 0.82 x 2 | https://cdn.3dassets.dev/assets/4890/v1/model.glb |
| [gallimimus (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-gallimimus-1f1ea141) | 368 KB | 1.17 x 2.23 x 5.50 | https://cdn.3dassets.dev/assets/4892/v1/model.glb |
| [pteranodon soaring (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-pteranodon-soaring-53b9c4c3) | 160 KB | 4.03 x 0.86 x 1.80 | https://cdn.3dassets.dev/assets/4912/v1/model.glb |
| [quetzalcoatlus standing (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-quetzalcoatlus-standing-7d99f21f) | 324 KB | 1.27 x 3.25 x 2.80 | https://cdn.3dassets.dev/assets/4913/v1/model.glb |
| [nest with eggs (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-nest-with-eggs-85398c73) | 302 KB | 1.28 x 0.41 x 1.00 | https://cdn.3dassets.dev/assets/4922/v1/model.glb |
| [hatchling (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-hatchling-eedea149) | 131 KB | 0.15 x 0.24 x 0.40 | https://cdn.3dassets.dev/assets/4923/v1/model.glb |
| [footprint slab (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-footprint-slab-e93f964e) | 30 KB | 1.35 x 0.13 x 1.00 | https://cdn.3dassets.dev/assets/4924/v1/model.glb |
| [exposed skull fossil in rock (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-exposed-skull-fossil-in-f3cb4839) | 120 KB | 1.27 x 0.29 x 1.00 | https://cdn.3dassets.dev/assets/4925/v1/model.glb |
| [tree fern (Dinosaurs and Prehistoric Life)](https://3dassets.dev/assets/dinosaurs-and-prehistoric-life-tree-fern-cb1e849d) | 343 KB | 1.97 x 2.37 x 2 | https://cdn.3dassets.dev/assets/4927/v1/model.glb |

## Layout

| # | Model | Position (x, y, z) | Yaw |
| --- | --- | --- | --- |
| 1 | brachiosaurus (Dinosaurs and Prehistoric Life) | -15, 0, -15 | 30 |
| 2 | diplodocus (Dinosaurs and Prehistoric Life) | 15, 0, -16 | 330 |
| 3 | parasaurolophus (Dinosaurs and Prehistoric Life) | -2, 0, -9 | 20 |
| 4 | triceratops (Dinosaurs and Prehistoric Life) | -6, 0, 2 | 200 |
| 5 | triceratops charging (Dinosaurs and Prehistoric Life) | 3, 0, -4 | 150 |
| 6 | tyrannosaurus roaring (Dinosaurs and Prehistoric Life) | 10, 0, 4 | 240 |
| 7 | stegosaurus (Dinosaurs and Prehistoric Life) | -14, 0, 8 | 60 |
| 8 | ankylosaurus (Dinosaurs and Prehistoric Life) | 14, 0, 12 | 100 |
| 9 | allosaurus (Dinosaurs and Prehistoric Life) | 20, 0, -4 | 280 |
| 10 | dilophosaurus (Dinosaurs and Prehistoric Life) | 22, 0, 10 | 200 |
| 11 | pachycephalosaurus (Dinosaurs and Prehistoric Life) | -24, 0, -4 | 120 |
| 12 | styracosaurus (Dinosaurs and Prehistoric Life) | -12, 0, -4 | 250 |
| 13 | kentrosaurus (Dinosaurs and Prehistoric Life) | 24, 0, -14 | 30 |
| 14 | spinosaurus (Dinosaurs and Prehistoric Life) | -22, 0, 15 | 300 |
| 15 | dimetrodon (Dinosaurs and Prehistoric Life) | 18, 0, 17 | 340 |
| 16 | velociraptor feathered (Dinosaurs and Prehistoric Life) | 5, 0, 14 | 200 |
| 17 | velociraptor feathered (Dinosaurs and Prehistoric Life) | 6.50, 0, 15.50 | 230 |
| 18 | velociraptor feathered (Dinosaurs and Prehistoric Life) | 3.50, 0, 15.80 | 170 |
| 19 | gallimimus (Dinosaurs and Prehistoric Life) | -20, 0, 2 | 90 |
| 20 | gallimimus (Dinosaurs and Prehistoric Life) | -21, 0, 5 | 80 |
| 21 | pteranodon soaring (Dinosaurs and Prehistoric Life) | 0, 8, -2 | 40 |
| 22 | quetzalcoatlus standing (Dinosaurs and Prehistoric Life) | -8, 0, 14 | 130 |
| 23 | nest with eggs (Dinosaurs and Prehistoric Life) | -6, 0, 10 | 0 |
| 24 | hatchling (Dinosaurs and Prehistoric Life) | -5.60, 0.20, 9.80 | 60 |
| 25 | footprint slab (Dinosaurs and Prehistoric Life) | 0, 0, 12 | 20 |
| 26 | exposed skull fossil in rock (Dinosaurs and Prehistoric Life) | -3, 0, 17 | 300 |
| 27 | tree fern (Dinosaurs and Prehistoric Life) | -9, 0, -12 | 0 |
| 28 | tree fern (Dinosaurs and Prehistoric Life) | 9, 0, -9 | 40 |
| 29 | tree fern (Dinosaurs and Prehistoric Life) | -17, 0, 2 | 80 |
| 30 | tree fern (Dinosaurs and Prehistoric Life) | 19, 0, 4 | 120 |
| 31 | tree fern (Dinosaurs and Prehistoric Life) | -2, 0, 6 | 160 |
| 32 | tree fern (Dinosaurs and Prehistoric Life) | 8, 0, 16 | 200 |
| 33 | tree fern (Dinosaurs and Prehistoric Life) | -26, 0, 10 | 240 |
| 34 | tree fern (Dinosaurs and Prehistoric Life) | 26, 0, 2 | 280 |
| 35 | tree fern (Dinosaurs and Prehistoric Life) | 1, 0, -20 | 320 |
| 36 | tree fern (Dinosaurs and Prehistoric Life) | -14, 0, 16 | 360 |

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JSON (the same layout with CDN URLs): https://3dassets.dev/api/v1/demos/dinosaurs-and-prehistoric-life · Every model loads with a plain GLTFLoader: no Draco/KTX2 loaders needed.