FossilNotes

The time ruler of rock layers

Free · Designed for iPad. Not verified for macOS.

New: full 3D-model licensing cleanup — every model is now CC0 / CC-BY and safe for study & teaching. **Index Fossil Notes** is a bilingual (中文 / English) reference app for geology enthusiasts, students, and educators. It puts the "time ruler of rock layers" — index fossils — in your pocket: - **Systematic notes on 68 classic index-fossil genera**, spanning the Cambrian through the Neogene — from trilobites, graptolites, and fusulinids to ammonites and foraminifera — tracing the whole timeline of life's evolution. - **39 high-precision 3D models**: rotate, zoom, and inspect the parts of each specimen, turning flat textbook images into tangible 3D objects. - Every genus is annotated with its **age range, stratigraphic value, diagnostic features, and global distribution**, with references and provenance. - **Fully licensed models**: every 3D model comes from academic institutions and openly licensed sources (CC0 / CC-BY), safe for study and teaching. - **Bilingual**: switch between Simplified Chinese and English with one tap, fully offline — consult it anytime, even in the field. Whether you're preparing for a geology exam, writing popular-science articles, or simply moved by life from hundreds of millions of years ago, Index Fossil Notes gives you a reliable "biological clock.

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The developer, 际 郭, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • 际 郭
    Size
    • 148.4 MB
    Category
    • Reference
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    4+
    Copyright
    • © 2026 GUOJI
  • Privacy Policy

    • More by 际 郭

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