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     "groupId": "1",
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     "label": "Induan",
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     "groupId": "1",
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     "label": "Paleozoic",
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     "label": "Permian",
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     "label": "Lopingian",
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    {
     "label": "Carboniferous",
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     "groupId": "2",
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    },
    {
     "label": "Pennsylvanian",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWOZ+fTMfwYqgXRpE0YWBioDllEDKQYslBuBCkYNpBywUMEMFDBqIOWAZQQamC5twkhNEwFZ+AUIKbxuPgAAAABJRU5ErkJggg==",
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     "groupId": "2",
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    },
    {
     "label": "Kasimovian",
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     "groupId": "2",
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     "label": "Bashkirian",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWOZ+fTMfwYqgXRpE0YWBioDllEDKQYslBuBCkYNpBywUMEMFDBqIOWAZQQamC5twkhNEwFZ+AUIKbxuPgAAAABJRU5ErkJggg==",
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     "groupId": "2",
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    {
     "label": "Mississippian",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWNJ21/8n4FKYJZjLyMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1kHLAMgINnOXYy0hNEwFb6AW6m9siUwAAAABJRU5ErkJggg==",
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     "groupId": "2",
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     "width": 20,
     "values": [
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    {
     "label": "Serpukhovian",
     "url": "3d7ac46c5190085ef11cbf6ef138a4bc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWPZf7P4PwOVgKN6LyMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1kHLAMgINdFTvZaSmiQBaNgVH6QdafwAAAABJRU5ErkJggg==",
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     "groupId": "2",
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     "width": 20,
     "values": [
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    },
    {
     "label": "Devonian",
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     "groupId": "2",
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     "width": 20,
     "values": [
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    },
    {
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     "url": "cba0b9bfd88e5d39b3195578eaa6503b",
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    {
     "label": "Middle Devonian",
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    },
    {
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWP59LTnPwOVAJ90CSMLA5UBy6iBFAMWyo1ABaMGUg5YqGAGChg1kHLAMgIN5JMuYaSmiQBZFATveNSK2gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "2",
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     "values": [
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    },
    {
     "label": "Eifelian",
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     "groupId": "2",
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     "values": [
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    },
    {
     "label": "Lower Devonian",
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     "groupId": "2",
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     "values": [
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    },
    {
     "label": "Emsian",
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    },
    {
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    },
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    },
    {
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     "values": [
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    },
    {
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    },
    {
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    },
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    },
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    },
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    {
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     "groupId": "2",
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    },
    {
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     "groupId": "2",
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     "values": [
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    },
    {
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    },
    {
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     "groupId": "3",
     "height": 20,
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     "values": [
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    },
    {
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAN0lEQVQ4je3MsQ0AMAgDMCLlvXJsOZDOzMlWfIDZ93SYIAsMM24oo15MG+poOIYNdfwwRBac4wNZ9wVUc8epTgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "3",
     "height": 20,
     "width": 20,
     "values": [
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     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Cenozoic"
    },
    {
     "id": "1",
     "heading": "Mesozoic"
    },
    {
     "id": "2",
     "heading": "Paleozoic"
    },
    {
     "id": "3",
     "heading": "Precambrian"
    }
   ]
  }
 ]
}