Chamaeleonidae
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publication ID |
https://doi.org/10.1093/zoolinnean/zlz035 |
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persistent identifier |
https://treatment.plazi.org/id/9C298799-D24B-5A31-FC87-FA032557A87E |
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treatment provided by |
Plazi |
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scientific name |
Chamaeleonidae |
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Chamaeleonidae View in CoL View at ENA ( Figs 5C, D View Figure 5 , 6E View Figure 6 )
The parietal of Chamaeleo chamaeleon is an unpaired bone that differs from the above-described morphology. It is composed of a small laminar body, subtriangular in shape, and of a long and posteriorly rounded parietal crest, which is narrow (without lateral expansions) in dorsal view ( Fig. 5C View Figure 5 ) and wide in lateral view ( Fig. 6E View Figure 6 ). The crest contacts the processus ascendens of the supraoccipital anteroventrally, with a well-developed, ventrally expanded, median crest [processus parietalis inferior in Čerňanský et al. (2014); Fig. 6E View Figure 6 ] and the squamosals by its posterior end. Each lateral side of the crest is slightly concave. The parietal crest continues anteriorly on the dorsal surface of the laminar body, contacting the ridge located on the posterior end of the dorsal surface of the frontal. Dorsally, the laminar body is smooth, but in MNHN 241 and 2002-24, and in NHMW 611, 717 and 721, the dorsal margin of the crest is covered by numerous tubercles ( Figs 5C View Figure 5 , 6E View Figure 6 ). The ventral surface of the laminar portion has a deep sunken area in the middle, which is the area of articulation with the processus ascendens of the supraoccipital (a remnant of the parietal fossa; Fig. 5D View Figure 5 ). This area continues posteriorly in a groove along the ventral margin of the median crest, representing the articulation surface with the dorsal expansion of the processus ascendens. On both sides of the sunken area there is a small ridge-like process, slightly developed in the ventral direction. Supratemporal processes are not present, nor is the opening of the parietal foramen. The anterior and anterolateral margins of the laminar body are represented by interdigitated sutures ( Fig. 5C View Figure 5 ). Two wide and anteriorly rounded parietal tabs develop from each lateral corner of the anterior margin ( Fig. 5C, D View Figure 5 ); their anterior margin can also be interdigitated. Maximum length of the parietal goes from 13.3 mm to 21.5 mm and its maximum width varies from 6 mm to 11 mm.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.