Pterosaur cervical vertebrae had unique specializations, varying morphologically between species and in different areas of the neck within the same individual (Wellnhofer 1991a, Kellner & Tomida 2000, ...

Degrees of foveal hypoplasia were defined according to the OCT grading system proposed by Thomas and Gottlob.8 In this system, a normal fovea is defined by the absence of plexiform layers, the ...