Unless I overlooked something, the etymology of _Oculudentavis_ was
*not* clearly stated at all by Xing &c (Ref. 1). The original
etymology was given as "The generic name _Oculudentavis_ is derived
from the Latin oculus (eye), dentes (teeth) and avis (bird)."
Further on, I could figure out (sort of) why they came up with the
name; but it wasn't at all "clearly stated" which aspects of "eye"
and/or "tooth" were behind the name.
I wondered if it was in the supplementary information. But no, the supp. inf. – which Nature has outsourced
to Zenodo – doesn't appear to contain any additional text.
BTW, that bit about the toothrow of Ichthyornis extending under the orbit contradicts fig. 4 of the original Oculudentavis paper, where the maxilla and the toothrow of Ichthyornis are illustrated as only extending under the lacrimal and stopping at the rostral edge of the orbit, which in turn is much larger than the reconstructed sclerotic ring.