TheropodaDromaeosauridae

Bambiraptor feinbergi

Bambiraptor feinbergi skeletal reconstruction, left lateral view, reconstructed length ~1 m.
Scale bar = 25 centimeters
Taxon
Bambiraptor feinbergi Burnham et al., 2000
Reconstructed length
~1 m (3.5 feet)
Life stage
juvenile
View
Left lateral
Drawing
© Scott Hartman
Drawn
2000, revised 2022
Clade
  1. Theropoda
  2. Tetanurae
  3. Coelurosauria
  4. Maniraptoriformes
  5. Maniraptora
  6. Paraves
  7. Dromaeosauridae

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A small dromaeosaurid theropod from the Late Cretaceous of western North America. Bambiraptor is known from a well-preserved juvenile skeleton from Montana, which was found alongside a larger, adult specimen that was less complete and has not been described in as much detail. Although much has been made about the supposedly bird-like proportions of this winged “raptor” dinosaur, in reality it’s about as avian-like in anatomy as any other dromaeosaur.

Found in the same formation as Saurornitholestes langstoni, it’s possible they are actually the same species, although the type material of Saurornitholestes is scrappy, and more recent, more complete specimens have been suggested to differ enough to keep Bambiraptor and Saurornitholestes separate. If so, it would be similar to how many ecosystems have relatives of somewhat different size (e.g. foxes, coyotes and wolves living in the same ecosystem).

The evidence

What the specimen actually preserves

Known skeletal material of Bambiraptor feinbergi: preserved elements shown in white against a black body silhouette.
Known material: elements preserved in the specimen are shown in white; unpreserved regions are left as black silhouette. Drawn 2003, revised 2026