It’s kinda of a mystery, and I’m not sure I can solve it, but…
Type I feathers
Ornithofibres (variation of pycnofibres, British spelling and everything)
Dinofuzz type II (typical dinofuzz, sensus Sinosauropteryx, would be “type I”)
I invite viewers to suggest something else … more viable. It doesn’t matter whether they are homologous or not to Prum’s type I feathers/protofeathers/dinofuzz (although I am sure it would help in figuring our WHAT they are). This is strictly about trying to find out what these curvy, bent over structures could reasonably be called.
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