{
  "id": "ancient-earth",
  "version": "muller2019-v1.2-20261004-r2",
  "sourceUrls": [
    "https://zenodo.org/records/10525287",
    "https://gwsdoc.gplates.org/reconstruction/reconstruct-points/"
  ],
  "retrievedAt": "2026-10-04T00:00:00Z",
  "licenseReference": "https://zenodo.org/records/10525287/files/License.txt?download=1",
  "commercialStatus": "approved",
  "exportStatus": "approved",
  "bounds": [
    -180,
    -90,
    180,
    90
  ],
  "time": {
    "kind": "geologic",
    "agesMa": [
      0,
      25,
      50,
      75,
      100,
      125,
      150,
      175,
      200,
      225,
      250
    ],
    "modelId": "MULLER2019"
  },
  "units": {
    "age": "million years before present (Ma)",
    "separation": "km, shorter great-circle"
  },
  "limitations": [
    "One model and six tested present-day locations; arbitrary user coordinates and additional models are not supported.",
    "Point assignments use the model static plate polygons and valid-time intervals. They do not resolve local deformation within plates.",
    "The interface snaps to evaluated 25 Ma milestones between 0 and 250 Ma; trails connect those evaluated positions for illustration.",
    "Honolulu is assigned to oceanic plate 901 with a valid age limit of 83 Ma; older positions remain unavailable rather than inventing motion.",
    "Coastlines are a generalized overview of model polygons; small islands and fine shoreline details are omitted.",
    "Coordinates alone do not establish ancient climate, habitat, elevation, water depth, or the position of a modern building."
  ],
  "assets": [
    {
      "path": "/data/animated/ancient-earth/muller2019-v1.2-20261004-r2/scene.json",
      "sha256": "c76ae741f9e648c5347fa9ec084f0798b2db41355c3ef9cf8c698327f9a00dfe",
      "bytes": 1936738
    },
    {
      "path": "/data/animated/ancient-earth/muller2019-v1.2-20261004-r2/reference-output.json",
      "sha256": "8d58d897ff834e76b2e4d3c0a2f9c7779e24e6fb1a73865c1e567a988a872b9c",
      "bytes": 8554
    },
    {
      "path": "/data/animated/ancient-earth/muller2019-v1.2-20261004-r2/model-license.txt",
      "sha256": "93b0e3272777ad090ca5720c30619412559831dcd8fccbac496cf1bec625dc8f",
      "bytes": 253
    }
  ],
  "sourceInputs": [
    {
      "url": "https://zenodo.org/api/records/10525287/files/Muller_etal_2019_PlateMotionModel_v1.2.zip/content",
      "release": "Muller2019 v1.2 / doi:10.5281/zenodo.10525287",
      "sha256": "bdd5f86a28f6009282694867131260054424ef2f9c9dfa48fc7c13f465c077cd",
      "bytes": 37549700,
      "archivePath": "artifacts/animated/raw/Muller_etal_2019_PlateMotionModel_v1.2.zip"
    }
  ],
  "attribution": "Müller et al. (2019), model dataset v1.2, doi:10.5281/zenodo.10525287, CC BY 4.0. Locations and generalized coastlines reconstructed with pyGPlates 1.0.0; visualization changes by MapifyStats."
}