TABLE 5. Table incorporating all other taphonomic classification systems used in this study of the I. duncani specimens from Isisford [13,16,20,26–28,32,101–104,106–114] that were used in conjunction with Table IV in Dodson [19] and trends classified by Beardmore et al. [40].

Table incorporating all other taphonomic classification systems used in this study of the I. duncani specimens from Isisford [13,16,20,26–28,32,101–104,106–114] that were used in conjunction with Table IV in Dodson [19] and trends classified by Beardmore et al. [40]. We also chose to include counts of number of individual specimens (NISP) and minimum number of elements (MNE) with and without osteoderms, for ease of comparison in future with other tetrapods lacking dermal skeletons. The maximum number of skeletal elements in I. duncani, both excluding and including osteoderms, are listed next to MNE. Specimens QM F58793 and QM F58794 were found in close proximity, therefore NISP, MNE, and MNI are listed both grouped together (MNI = 2), and separately, to demonstrate the variation in NISP and MNE per individual. Where possible, life stage was determined by identifying closure neurocentral sutures in vertebrae (closure proceeds caudally to cranially throughout ontogeny, with ‘adult’ defined as possessing closed neurocentral sutures in all vertebrae) and size comparison to the holotype that has been identified as an adult (see Salisbury et al. [66]). By comparing across specimen numbers, we determined whether disarticulated elements showed greater degrees of bone surface modifications. Degrees of articulation and completeness are the sum total of scores for each skeletal unit. The Dodson [19] classification scheme assumes absences are true absences; we selected the most likely class per specimen based on other taphonomic indicators (such as truncation with block, articulation versus completeness, and so on).