Pelobates sp.
|
publication ID |
https://doi.org/10.1186/s13358-024-00332-7 |
|
persistent identifier |
https://treatment.plazi.org/id/E86287BF-FFFB-FFEC-B99E-A64EFBC9FBE4 |
|
treatment provided by |
Felipe |
|
scientific name |
Pelobates sp. |
| status |
|
Figure 18 View Fig
Material. Chalicorrema: two maxillae ( UU RA 509 and UU RA 512) and five sculptured bone fragments ( UU RA 510, UU RA 511, UU RA 514, UU RA 515, and UU RA 517).
Description.
Te two maxillae from Chalicorrema are only partially preserved ( Fig. 18a–e View Fig ). Both are lacking the anterior half of the bone, though UU RA 509 ( Fig. 18a–c View Fig ) preserves a larger portion of the posterior part compared to UU RA 512 ( Fig. 18d, e View Fig ). Medially, there is a narrow lamina horizontalis. In dorsal view, the lamina is not strongly developed in medial direction. Te posterior end of the lamina originates a short processus pterygoideus. Ventral to the lamina, the tooth row hosts closely-packed, pedicellate and pleurodont teeth. Te tooth row extends posterior to the processus pterygoideus in UU RA 509 ( Fig. 18b View Fig ), but ends more anterior in UU RA 512 ( Fig. 18e View Fig ). Te posterior end of the medial surface of the maxilla has no posterior depression. Te processus zygomaticomaxillaris is well developed and distally rounded. Te margo orbitalis is deep. Te lateral surface hosts a well-developed and rather dense sculpturing, which is coossified to the bone. Te sculpturing is made of small tubercles, which are aligned and united in ridges ( Fig. 18c, d View Fig ). UU RA 509 is slightly less than 10 mm long ( Fig. 18a–c View Fig ). Five sculptured bone fragments from Chalicorrema ( Fig. 18f, i View Fig ) cannot be clearly recognized as either portions of maxillae or of other bones, but share with UU RA 509 and UU RA 512 the same dermal sculpturing.
Remarks. Tese sculptured skull bones from Chalicorrema are here assigned to Pelobates because of the coossified dermal sculpturing made up by tubercles and ridges (Bailon, 1999; Roček, 2013; Syromyatnikova, 2017, 2019). Te deep margo orbitalis is shared with species such as Pelobates cultripes (Cuvier, 1829) and Pelobates syriacus Boettger, 1889 (Bailon, 1999; Blain et al., 2016), as well as with Pelobates aff. praefuscus from Caucausus (Syromyatnikova, 2019) and the Spilia specimens described above. Due to poor preservation and scarcity of the available material, a more precise identification at species level is here avoided.
| UU |
University of Uppsala |
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.