Fitzroyella sp.
publication ID |
https://doi.org/ 10.5281/zenodo.13748597 |
persistent identifier |
https://treatment.plazi.org/id/03BE87A9-FFC9-FF92-A564-FBB2E010784A |
treatment provided by |
Felipe |
scientific name |
Fitzroyella sp. |
status |
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Fig. 7D, E View Fig .
Material.—One complete and two fragmentarily preserved shells were recovered from Wietrznia Id−W (bed 4 and loose debris) and Wietrznia II sections.
Remarks.—The specimens here described differ from those described above as Fitzroyella alata Biernat, 1969 being not as wide and by having non alate cardinal margin. The cardinal margin of the studied specimens is narrower the maximum width of the shell, and the shell is almost subquadrate in outline. Moreover, shell ribbing of these specimens seems to be not as strong as in F. alata. The specimens show some similarity in general shell form and ribbing to Fitzroyella hartensis Struve, 1978 and Fitzroyella inversicor lapicidinae Struve, 1978 , both from the early part of the Frasnian of Germany ( Struve 1978). Unfortunately, more precise identification of the species from Wietrznia is not possible at present due to inadequate studied material. On the other hand Biernat (1969: 385) emphasised great intraspecific variability in F. alata and remarked that in her collection occur specimens which could be considered as representatives of each known at that time species of Fitzroyella .
Occurrence.—The studied specimens were found in set C of the Wietrznia Id−W and Wietrznia II sections representing Palmatolepis transitans conodont Zone.
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