"太古代" meaning in Japanese

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        "3": "代",
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        "tr2": "dai"
      },
      "expansion": "太古 (taiko, “ancient times”) + 代 (-dai, “era”)",
      "name": "suffix"
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  ],
  "etymology_text": "太古 (taiko, “ancient times”) + 代 (-dai, “era”)",
  "forms": [
    {
      "form": "太古代",
      "ruby": [
        [
          "太",
          "たい"
        ],
        [
          "古",
          "こ"
        ],
        [
          "代",
          "だい"
        ]
      ],
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      "args": {
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        "2": "たいこだい"
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      "expansion": "太(たい)古(こ)代(だい) • (Taikodai)",
      "name": "ja-pos"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "name",
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        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Geology",
          "orig": "ja:Geology",
          "parents": [
            "Earth sciences",
            "Sciences",
            "All topics",
            "Fundamental"
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          "name": "Time",
          "orig": "ja:Time",
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            "All topics",
            "Fundamental"
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      ],
      "glosses": [
        "Synonym of 始生代"
      ],
      "id": "en-太古代-ja-name-otsjXHnh",
      "links": [
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          "始生代",
          "始生代#Japanese"
        ]
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          "word": "始生代"
        }
      ]
    }
  ],
  "sounds": [
    {
      "other": "たいこだい"
    },
    {
      "ipa": "[ta̠iko̞da̠i]"
    }
  ],
  "word": "太古代"
}

{
  "etymology_templates": [
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      "args": {
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        "2": "太古",
        "3": "代",
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        "tr2": "dai"
      },
      "expansion": "太古 (taiko, “ancient times”) + 代 (-dai, “era”)",
      "name": "suffix"
    }
  ],
  "etymology_text": "太古 (taiko, “ancient times”) + 代 (-dai, “era”)",
  "forms": [
    {
      "form": "太古代",
      "ruby": [
        [
          "太",
          "たい"
        ],
        [
          "古",
          "こ"
        ],
        [
          "代",
          "だい"
        ]
      ],
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      ]
    },
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      "form": "Taikodai",
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  ],
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    {
      "args": {
        "1": "proper",
        "2": "たいこだい"
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      "expansion": "太(たい)古(こ)代(だい) • (Taikodai)",
      "name": "ja-pos"
    }
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  "lang_code": "ja",
  "pos": "name",
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        "Japanese terms suffixed with 代",
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      "glosses": [
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    {
      "other": "たいこだい"
    },
    {
      "ipa": "[ta̠iko̞da̠i]"
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  "word": "太古代"
}

{
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  "path": [
    "太古代"
  ],
  "section": "Japanese",
  "subsection": "proper noun",
  "title": "太古代",
  "trace": ""
}