Things With Feathers is a Tumblr where paleoartist and scientific illustrator Emily Willoughby will post science, illustration, dinosaurs, feathers, fossils, and occasionally a little bit of silliness.

 

Another diagram for the upcoming evolution book!
Everything but pigeon referenced from Greg Paul diagrams; pigeon referenced from various photographs of pigeon skeletons I could find. The position of metatarsal III on the Deinonychus pes is modeled after Fowler et al. 2011.
Two interesting points as an animal becomes more “birdlike”: the hallux moves towards greater mobility, and the tarsometatarsus fuses. The tarsometatarsus of Archaeopteryx represents a unique semi-fused “transition” state between unfused and totally fused metatarsal bones.

Another diagram for the upcoming evolution book!

Everything but pigeon referenced from Greg Paul diagrams; pigeon referenced from various photographs of pigeon skeletons I could find. The position of metatarsal III on the Deinonychus pes is modeled after Fowler et al. 2011.

Two interesting points as an animal becomes more “birdlike”: the hallux moves towards greater mobility, and the tarsometatarsus fuses. The tarsometatarsus of Archaeopteryx represents a unique semi-fused “transition” state between unfused and totally fused metatarsal bones.

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