English: Anatomical details of the manus of Ostromia crassipes and Anchiornis huxleyi. a Detail of the preserved elements of the right manus on the main slab, showing longitudinal furrows (or their impressions) in metacarpal III and the manual phalanges (arrows). b Detail of the preserved elements of the right manus on the counterslab of the holotype of Ostromia crassipes (TM 6929), showing longitudinal furrows (or their impressions) in the manual phalanges (arrows). c, d Impression (c) and high-resolution cast (d) of the left manus of the holotype of Anchiornis huxleyi (Institute of Vertebrate Paleontology and Paleoanthropology IVPP V 14378), showing longitudinal furrows in the manual phalanges (arrows). All scale bars are 10 mm