"示準化石" meaning in Japanese

{
  "forms": [
    {
      "form": "示準化石",
      "ruby": [
        [
          "示",
          "し"
        ],
        [
          "準",
          "じゅん"
        ],
        [
          "化",
          "か"
        ],
        [
          "石",
          "せき"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shijun kaseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "sizyunkwaseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "しじゆんくわせき",
      "roman": "sizyunkwaseki",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しじゅん かせき",
        "head": "示準化石",
        "hhira": "しじゆんくわせき"
      },
      "expansion": "示(し)準(じゅん)化(か)石(せき) • (shijun kaseki) ^(←しじゆんくわせき (sizyunkwaseki)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 4 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with Nakadaka pitch accent (Tōkyō)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "ja",
          "name": "Paleontology",
          "orig": "ja:Paleontology",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "index fossil"
      ],
      "id": "en-示準化石-ja-noun-DvqEbmxp",
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "index fossil",
          "index fossil"
        ]
      ],
      "raw_glosses": [
        "(paleontology) index fossil"
      ],
      "synonyms": [
        {
          "roman": "hyōjun kaseki",
          "ruby": [
            [
              "標準化石",
              "ひょうじゅんかせき"
            ]
          ],
          "word": "標準化石"
        }
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ],
      "wikipedia": [
        "ja:示準化石"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しじゅんかせき"
    },
    {
      "ipa": "[ɕiʑɨŋ ka̠se̞kʲi]"
    }
  ],
  "word": "示準化石"
}

{
  "forms": [
    {
      "form": "示準化石",
      "ruby": [
        [
          "示",
          "し"
        ],
        [
          "準",
          "じゅん"
        ],
        [
          "化",
          "か"
        ],
        [
          "石",
          "せき"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "shijun kaseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "sizyunkwaseki",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "しじゆんくわせき",
      "roman": "sizyunkwaseki",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "しじゅん かせき",
        "head": "示準化石",
        "hhira": "しじゆんくわせき"
      },
      "expansion": "示(し)準(じゅん)化(か)石(せき) • (shijun kaseki) ^(←しじゆんくわせき (sizyunkwaseki)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms historically spelled with わ",
        "Japanese terms spelled with fifth grade kanji",
        "Japanese terms spelled with first grade kanji",
        "Japanese terms spelled with third grade kanji",
        "Japanese terms with 4 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with Nakadaka pitch accent (Tōkyō)",
        "Japanese terms with multiple readings",
        "Japanese terms with redundant sortkeys",
        "Pages with 1 entry",
        "Pages with entries",
        "ja:Paleontology"
      ],
      "glosses": [
        "index fossil"
      ],
      "links": [
        [
          "paleontology",
          "paleontology"
        ],
        [
          "index fossil",
          "index fossil"
        ]
      ],
      "raw_glosses": [
        "(paleontology) index fossil"
      ],
      "topics": [
        "biology",
        "history",
        "human-sciences",
        "natural-sciences",
        "paleontology",
        "sciences"
      ],
      "wikipedia": [
        "ja:示準化石"
      ]
    }
  ],
  "sounds": [
    {
      "other": "しじゅんかせき"
    },
    {
      "ipa": "[ɕiʑɨŋ ka̠se̞kʲi]"
    }
  ],
  "synonyms": [
    {
      "roman": "hyōjun kaseki",
      "ruby": [
        [
          "標準化石",
          "ひょうじゅんかせき"
        ]
      ],
      "word": "標準化石"
    }
  ],
  "word": "示準化石"
}