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. 2020 Sep 18;8:e9888. doi: 10.7717/peerj.9888

Table 3. Values of cochlear lengths (CL), calculated basilar papilla length, best frequency of hearing and high frequency of hearing limit.

“Basilar papilla length”, “Best frequency of hearing” and “High frequency of hearing limit” were calculated following the method of Gleich, Dooling & Manley (2005).

Species Specimen number CL (mm) Basilar papilla length (mm) Best frequency of hearing (Hz) High frequency of hearing limit (Hz) Reference
Triceratops sp. FPDM-V-9775 17.95 12.0 0.290 1.577
Pachyrhinosaurus lakustai TMP 1989.55.1243 15.2 10.1 0.458 1.887 Witmer & Ridgely (2008)
Tyrannosaurus rex AMNH FR 5117 13.8 9.2 0.579 2.109 Witmer & Ridgely (2009)
Gorgosaurus libratus ROM 1247 8.15 5.4 1.484 3.778 Witmer & Ridgely (2009)
Allosaurus fragilis UMNH VP 18050 14.8 9.9 0.490 1.945 Witmer & Ridgely (2009)
Troodon formosus composite of TMP 86.36.457 and TMP 79.8.1 9.56 6.4 1.173 3.205 Witmer & Ridgely (2009)
Hypacrosaurus altispinus ROM 702 16.7 11.1 0.357 1.700 Evans, Ridgely & Witmer (2009)
Lambeosaurus sp. ROM 758 9.2 6.1 1.245 3.339 Evans, Ridgely & Witmer (2009)
Corythosaurus sp. ROM 759 11.9 7.9 0.794 2.507 Evans, Ridgely & Witmer (2009)
Corythosaurus sp. CMN 34825 12.3 8.2 0.743 2.412 Evans, Ridgely & Witmer (2009)
Kunbarrasaurus ieversi QM F18101 24.3 16.2 0.101 1.228 Leahey et al. (2015)
Pawpawsaurus campbelli FWMSH93B.00026 19 12.7 0.243 1.491 Paulina-Carabajal, Lee & Jacobs (2016)