Lacertidae, Bonaparte, 1831
|
publication ID |
https://doi.org/ 10.26879/695 |
|
persistent identifier |
https://treatment.plazi.org/id/7630AF2B-B32D-2C4A-FBC9-FF5A97AEFBDD |
|
treatment provided by |
Felipe |
|
scientific name |
Lacertidae |
| status |
|
? Lacertidae View in CoL View at ENA indet.
Figure 1.10 View FIGURE 1
Material. IPS 49762, fragment of maxilla with two preserved teeth ( Figure 1.10 View FIGURE 1 ).
Description. This bone presents a robust pleurodont dentition. The bases of the teeth are labiolingually expanded, and there is a shoulder (not a true secondary cusplet) in an anterior position to the main cusp.
Remarks. The morphology of the best-preserved tooth, presenting an anteriorly positioned shoulder, fits well with that of the contemporaneous lacertid Dormaalisaurus Augé and Smith, 2002 . However, the poor preservation of the specimen from La Morera precludes further comparisons, and only the presence of a possible lacertid is granted.
ANGUIMORPHA Fürbringer, 1900
GLYPTOSAURINI Sullivan, 1979 Glyptosaurini indet.
Material. IPS49750, cranial osteoderm.
Description. The only skull osteoderm is polygonal, unkeeled, not bevelled, and it bears an ornamentation of irregularly distributed tubercles.
Remarks. Isolated hexagonal osteoderms are diagnostic of the tribe Glyptosaurini . The fact that the only member of Glyptosaurini recovered in Europe, Placosaurus , has been tentatively identified at Escarlà (see above) suggests this skull osteoderm could correspond to the same genus. However, material is clearly insufficient even for a tentative referral to the genus in the case of La Morera. As explained below, additional material (fragmentary tooth-bearing bones and body osteoderms) could belong to the same taxon, but are referred to Glyptosaurinae indet. because they are not diagnostic beyond this level (see below).
Glyptosaurinae indet.
Figure 1.14 View FIGURE 1
Material. IPS 49769, fragment of?body osteoderm; IPS 49749, 14 fragments of osteoderm; IPS 59566, body osteoderm ( Figure 1.14 View FIGURE 1 ); IPS 83556, one complete and four partial body osteoderms.
Description. Preserved body osteoderms are rectangular, unkeeled (or presenting a very faint keel) and bevelled. The ornamentation consists of numerous small tubercles.
Remarks. As with the glyptosaur osteoderms from Masia de l’Hereuet reported above, the recognition of Glyptosaurinae is easy, but material is not diagnostic beyond this level. The presence of an hexagonal thick skull osteoderm would point to the presence of a member of Glyptosaurini at La Morera a tribe recorded at Escarlà (see below) by the possible presence of Placosaurus . Body osteoderms are never diagnostic, so all glyptosaur material from La Morera is referred to an indeterminate glyptosaurine, except for the presence of a polygonal osteoderm that points to a member of Glyptosaurini .
Indeterminate lizards (non-ophidian, nonamphisbaenian squamates)
Material. IPS 83530, partial maxilla with five teeth; IPS 83528, tooth bearing bone with two broken teeth; IPS 49764, tooth bearing bone with one tooth; IPS 49765, tooth bearing bone with one tooth; IPS 49760, tooth bearing bone with one two teeth; IPS 49755, two fragments of tooth bearing bone; IPS 49763, tooth bearing bone with one tooth; IPS 49759, tooth bearing bone with three teeth; IPS 49757, fragment of right dentary with two broken teeth; IPS 49758, partial maxilla with four unicuspid teeth.
Remarks. Pleurodont implantation allows the identification of this material as squamate, and on the basis of tooth morphology, it can be identified as belonging to indeterminate lizards (amphisbaenians and snakes excluded). These specimens are listed here because the eventual recovery of additional better-preserved material may make them identifiable in the future.
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.