Extended Data Fig. 6 in A heavyweight early whale pushes the boundaries of vertebrate morphology

Extended Data Fig. 6 | Vertebral and costal morphology of Perucetus colossus (MUSM 3248, holotype) compared to that of other cetaceans. a, mean and maximumratioofvertebralcentrumanteroposteriorlength (CL) tomediolateral width (CW), computed with the thoracic and lumbar vertebrae of other cetaceans (Ba = Basilosaurinae; Dor = Dorudontinae; FM = fossil Mysticeti; FO = fossil Odontoceti;P = Pakicetidae+Ambulocetidae; Pa = Pachycetinae; Pr = Protocetidae;R = Remingtonocetidae).b, profile of vertebral centrum length in P.colossus (Pc) compared with the profiles of other basilosaurids (Aa = Antaecetus aithai; Bc = Basilosaurus cetoides; Bi = Basilosaurus isis; Cf = Chrysocetus fouadassii Cp = Cynthiacetus peruvianus; Da = Dorudon atrox; data of A. aithai and B. isis from Gingerich et al.15, fig.11).c, curvature (length/chord) of the best preserved rib, R-a (red horizontal line) compared to those of Cynthiacetus peruvianus (MNHN.F.PRU10).