Correction: bone cells in birds show exceptional surface area, a characteristic tracing back to Saurischian dinosaurs of the late triassic.

There is an error in Fig 3, “Total lengths of canaliculi per sample.” Please see the corrected Fig 3 and its legend here.

Fig 3

Total lengths of canaliculi per sample.

Total lengths of canaliculi per sample. Each sample is 2025 μm2 in area; null probabilities were calculated with Fisher's Exact test; red frequency distributions identify Saurischia in this and subsequent figures. Original measurements for Figs 3, 4 and 5 are listed in S1 Table.

There is an error in S1 Table. Please view the correct S1 Table below.

Measurements.

(DOC)

Click here for additional data file.