New dinosaur jacket

Having completed our Diplodocus scapulocoracoid, during Dino Day last Saturday we opened a new dinosaur jacket. This appears to be a somewhat crushed sauropod right femur (thigh bone). You’re looking at the posterior surface, with the proximal end at the left and the distal (knee) end  at the right (the distal end is poorly preserved). The bulge near the middle is the fourth trochanter, a muscle attachment point. The large light-colored patches at each end are gypsum deposits, which need to be removed. Compare the shape to this Apatosaurus mount from the Sam Noble Oklahoma Museum of Natural History:

I’m not sure yet what taxon our specimen represents. It’s a pretty small femur (length is about 134 cm). We have found CamarasaurusApatosaurus, and Diplodocus at the same site.

I’ll have more updates as the preparation progresses.

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4 Responses to New dinosaur jacket

  1. Doug says:

    Looks pretty cool. Wow, only dinosaurs can call four and a half feet “pretty small”.

  2. Alton Dooley says:

    No, whales can say the same thing. The dentary in blue whales can approach 20 feet in length–probably the largest individual bone ever.

  3. Doug says:

    D’oh, of course! how could i have forgotten about whales?!

  4. ScienceTim says:

    Do I know that bone? It looks familiar…

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