Bufotes cf. viridis (Laurenti, 1768)
|
publication ID |
https://doi.org/ 10.26879/1156 |
|
persistent identifier |
https://treatment.plazi.org/id/03C287BE-832F-7803-D018-FCF4F644F122 |
|
treatment provided by |
Felipe |
|
scientific name |
Bufotes cf. viridis (Laurenti, 1768) |
| status |
|
Bufotes cf. viridis (Laurenti, 1768) View in CoL Figure 5 View FIGURE 5 A-F
Material. UBB V 948 one squamosal; UBB V 949/ 1-2 two fragmentary presacral vertebrae; UBB V 950/1-3 two fragmentary sacral vertebrae, one fragmentary urostyle; UBB V 951/1-10 ten humeri; UBB V 952/1-6 six ilia.
Description. The only squamosal specimen preserves a short end tapering zygomatic process, whereas the posterodorsal process is wide with the distal part somewhat damaged.
The presacral vertebrae have short, procoelous centra with flattened condyles and cotyles, whereas the neural lamina is also short, of nonimbricate type, with the neural spine reduced to a low keel. The sacral vertebrae are damaged preserving an anterior cotyle and two posterior condyles for a bicondylar articulation with the urostyle ( Figure 5A View FIGURE 5 ). The only urostyle preserves the proximal part only; it has two cotyles and relatively robust dorsal crest thickened at its proximal end.
The humeri are preserved as distal fragments representing small-sized individuals ( Figure 5 View FIGURE 5 B-C). The humeral ball usually is incomplete, placed nearly symmetrically between the medial and lateral epicondyles; there is a small ventral cubital fossa.
The ilia preserve the acetabular region and various portions from the ilial shaft. The acetabular fossa is large and of semicircular shape and with the acetabular rim projecting laterally. In the preacetabular zone there is a deep recess. The dorsal protuberance is prominent and variable in shape with several tuberosities compressed mediolaterally ( Figure 5 View FIGURE 5 D-F). The ilial shaft lacks a dorsal crest; there is a transverse bony ridge extending from the anterior limit of the acetabular rim to the ventral margin of the ilial shaft. However, that ridge is devoid of a ventral extension to form the so called 'lamina calamita' or calamita ridge (Gómez and Turazzini, 2015).
Remarks. The most typical elements available to document the presence of Bufotes cf. viridis are the ilia. These bones display some variation in the position and morphology of the dorsal protuberance, which is asymmetrical consisting of two or three small tubercles, and positioned above or close to the level of the anterior margin of the acetabular rim. The preacetabular fossa in Bufotes viridis is always well-developed, whereas in Bufo bufo it is lacking ( Bailon, 1999: 19 l). The occurrence of a prominent bony ridge on the lateral surface of the ilial shaft is variable, but developed in a lesser degree than in the natterjack toad ( Epidalea calamita ). The presence of the calamita ridge is discernible in Strauchbufo raddei and in the fossil “ Bufo ” mirus (Syromyatnikova, 2015).
| V |
Royal British Columbia Museum - Herbarium |
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.