Wiwaxia sp.
|
publication ID |
https://doi.org/ 10.4202/app.2009.0052 |
|
persistent identifier |
https://treatment.plazi.org/id/8F6087DB-BB44-766F-7136-F8E5FC1EEEF5 |
|
treatment provided by |
Felipe |
|
scientific name |
Wiwaxia sp. |
| status |
|
Wiwaxia sp. View in CoL cf. W. corrugata ( Matthew, 1899)
Fig. 2 View Fig .
Material.—Six isolated sclerites, five scales and one supposed spine preserved on one slab of fine grained interlayer (siltstones to shales); all specimens are preserved on the slab CGS XB 800. Description.—All scales were found isolated and all are incompletely preserved. Two most complete and relatively well preserved specimens ( Fig. 2B, C, E View Fig ) display remains of the rootblade transition and traces of four to five longitudinal ribs, respectively. Number of ribs ranges from five to at least seven on the other three scale−like sclerites. The incompletness and slight deformation of scales exclude more precise reconstruction of their symmetry and thus exact location within the scleritome is impossible to be determined.
The seventh sclerite is poorly preserved but its gross morphology recalls a spiny element rather than a scale. This element also bears traces of at least five longitudinal ribs. Thickness of ribs is usually 0.04–0.05 mm. Distances between separate ribs ranges from 0.12 to 0.21 mm depending on the dimension of scales.
Discussion.—Although detailed study of sclerite morphology is hindered by poor preservation, no obvious difference from the well−known type species were observed and thus the Bohemian material is supposed to be conspecific with Wiwaxia corrugata .
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.