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Microtomography analysis of the mandibular teeth of the Komodo dragon (Varanus komodoensis). Sample sections (a)-coronal (X-Y) (red color), (b)-sagittal (Z-Y) (blue color) and (c)-transaxial (X-Z) (green color) of the tooth with well-defined tooth cavity. Scale bar: 2 mm.
Contexts in source publication
Context 1
... was observed that the dentine ridges form a branched structure, and the primary ridges give off secondary ridges that can connect with adjacent dentin ridges (Figure 9). The tooth chamber in the apical part narrows significantly, not reaching the very tip of the tooth, and the layer of hard tissues is thicker than in the middle and basal part of the tooth (Figures 7 and 8). The connective tissue and blood vessels adjacent to the dentine of the tooth are defined (Figures 12 and 13). ...
Context 2
... was observed that the dentine ridges form a branched structure, and the primary ridges give off secondary ridges that can connect with adjacent dentin ridges (Figure 9). The tooth chamber in the apical part narrows significantly, not reaching the very tip of the tooth, and the layer of hard tissues is thicker than in the middle and basal part of the tooth (Figures 7 and 8). The connective tissue and blood vessels adjacent to the dentine of the tooth are defined (Figures 12 and 13). ...
Citations
... Besides, Eocene sediments in the vicinity of Hüenerbach are only present many kilometers away from the locality, and they are marine and not terrestrial ones (Flysch of the peri-Alpine sea). Furthermore, serrated teeth have been documented in extinct and extant varanids (Farlow et al., 1991;Fejérváry, 1918Fejérváry, , 1935Hocknull et al., 2009;Janeczek et al., 2023;Smith, 2006;Wick et al., 2015). As a matter of fact, serration densities over the carinae can be high in certain small to medium-sized extant varanids, such as Varanus bengalensis (Daudin, 1802) and ...
... Varanus varius (White, 1790) (Farlow et al., 1991;Wick et al., 2015), while distinct serrations can occur also in the largest taxa of the group, such as Varanus salvator, V. komodoensis, and V. priscus (Bullet, 1942;Fejérváry, 1918Fejérváry, , 1935Hocknul et al., 2009;Janeczek et al., 2023). ...
We here describe two isolated fossil teeth from the Early Miocene (MN 4) of Hüenerbach, Switzerland. The material is tentatively referred to Varanus , marking the first occurrence of this iconic lizard genus in the Swiss fossil record, while it also represents one of its earliest occurrences from Europe, being coeval with other records from Spain, France, and the Czech Republic. Important diagnostic features in the teeth of extant Varanus are discussed, coupled with comparisons with related taxa. The prominent serration in one of the two Swiss teeth is an unusual feature for European varanids. In addition, the sole other lizard specimen from Hüenerbach is also described, being referred to an indeterminate lacertid, with potential affinities to the genus Janosikia .
