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Historical record · An evolutionary branch · still alive

Dinosaurs to Birds

Explore the fossils connecting birds with theropod dinosaurs, from early dinosaurs to living feathered descendants.

Primary topic: Nature & the Universe

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Scope of this guide

A curated selection of milestones, not a complete history or a claim that every step is a direct ancestor of the next. Earlier reading-path context is separate from the chapters selected for this subject.

Actual source-review status

0 completed · 0 partial · 7 pending chapter reviews in this subject.

The factual audit is unfinished. These counts come from recorded chapter reviews, not legacy “reviewed” wording, confidence labels or image checks. A completed source review retains scientific and historical uncertainty.

Key chapters

  1. c. 165–150 million years ago

    Feathers before modern birds →

    Some non-avian dinosaurs already wear feathered coverings.

    Full chapter source review pending. Confidence labels are editorial assessments.
  2. c. 150 million years ago

    Archaeopteryx combines old and new →

    Feathered wings occur alongside teeth and a long bony tail.

    Full chapter source review pending. Confidence labels are editorial assessments.
  3. Present day

    The dinosaurs outside your window →

    Every living bird belongs to the dinosaur family tree.

    Full chapter source review pending. Confidence labels are editorial assessments.

Connected roads

These are authored connections in the existing catalogue, not an automatically inferred family tree.

Earlier reading context: Big Bang to Us · Large multicellular life spreads. A reading-path prefix is not itself an ancestry claim.

No additional outgoing subject connections are authored for this road yet.

All chapters & review records

Sources

Sources cited by the existing chapters. Listing a source does not mean every claim has been verified.