Fig. 4: Right wing of WDC-CSG-100 under white raking light showing numbered primary feathers.
From: Archaeopteryx feather sheaths reveal sequential center-out flight-related molting strategy
Arrow delimiting the full length of a molted feather in WDC-CSG-100. This figure shows that primaries #5 and #7 were nearly full length. Cornified feather sheaths on primaries #5 and #7 are visible under LSF in Fig. 3a. The numbering on the feathers follows Mayr et al.13. The image is in grayscale and under white raking light to make the feathers easier to see. Scale bar is 2 cm.
