Osteological connexions of the petrosal bone of the extant Hippopotamidae Hippopotamus amphibius and Choeropsis liberiensis

Maëva J. Orliac, Franck Guy and Renaud Lebrun

This project presents the osteological connexions of the petrosal bone of the extant Hippopotamidae Hippopotamus amphibius and Choeropsis liberiensis by a virtual osteological dissection of the ear region. The petrosal, the bulla, the sinuses and the major morphological features surrounding the petrosal bone are labelled, both in situ and in an exploded model presenting disassembly views. The directional underwater hearing mode of Hippopotamidae is discussed based on the new observations. 

Choeropsis liberiensis UPPal-M09-5-005a View specimen

	M3#1 Labelled compact model of the right ear region of Choeropsis liberiensis (UPPal-M09-5-005a) Type: "3D_surfaces" doi: 10.18563/m3.sf1   state:published	Download 3D surface file
	M3#2 Labelled exploded model of the right ear region of Choeropsis liberiensis (UPPal-M09-5-005a) Type: "3D_surfaces" doi: 10.18563/m3.sf2   state:published	Download 3D surface file

Hippopotamus amphibius UM N179 View specimen

	M3#3 Labelled compact model of the right ear region of Hippopotamus amphibius (UM N 179) Type: "3D_surfaces" doi: 10.18563/m3.sf3   state:published	Download 3D surface file
	M3#4 Labelled exploded model of the right ear region of Hippopotamus amphibius (UM N 179) Type: "3D_surfaces" doi: 10.18563/m3.sf4   state:published	Download 3D surface file