Endocranial volumes were collected on 33 red deer (Cervus elaphus) skulls from the United Kingdom in May and June 2012.

Data were collected by Corina Logan, itsme@CorinaLogan.com.

Column headings explained:
SkullID = Unique identifier for each skull

VolumeCT = Endocranial volume from computerised tomography (CT) scans that were analysed in OsiriX. Units = cm3.

VolumeBead = Endocranial volume from the bead method. Units = ml.

VolumeLWH = Endocranial volume from linear measurements (length, L, width, W, and height, H) of the external skull. Units = cm3.

VolumeFinarelli = Endocranial volume from inserting average skull width into Finarelli's equation for estimating brain volume in non-bovid ruminant Artiodactyls (2011): Ln[brain volume] = 2.6616(Ln[W]) - 6.2722.

VolumeCTIntraobserverReliability = A second analysis conducted on the same CT scan to determine the degree of intraobserver reliability.

VolumeBeadIntraobserverReliability = A second set of bead measurements taken on the same skull on a different day to determine the degree of intraobserver reliability.

VolumeLWHIntraobserverReliability = A second set of linear measurements taken on the same skull on a different day to determine the degree of intraobserver reliability.