Menucoestheria, Gallego and Covacevich, 1998
publication ID |
https://doi.org/ 10.5281/zenodo.13515004 |
persistent identifier |
https://treatment.plazi.org/id/03863D74-FFC6-5B4D-FC96-84BFFD9FFC51 |
treatment provided by |
Felipe |
scientific name |
Menucoestheria |
status |
|
Menucoestheria ? sp.
Figs. 5B View Fig , 10 View Fig .
Material.—Two valves poorly preserved.
Description.—Carapace of moderate size, elliptical in outline, up to 5.8 mm long and up to 2.0 mm high; anterior and posterior margin rounded; umbo situated close to anterior end of dorsal margin; ventral margin slightly convex; more than 20 growth bands, ornamented by reticulate pattern in dorsal region and gradually changed into radial striae in lower part of each growth bands near ventral part of carapace.
Remarks.— Menucoestheria ? sp. is morphologically similar to Menucoestheria bocki , but differs mainly in the presence of radial striae ornamentation occurring only in the lower part of the each growth band in ventral part.
Occurrence.—Late Carnian, Krasiejów, Poland.
?Family Palaeolimnadiidae Tasch, 1956
Genus Krasiestheria nov.
Type species: Krasiestheria parvula gen. et sp. nov.
Derivation of name: The name is derived from Krasiejów— type locality, and the genus name Estheria .
Type horizon and locality: Late Triassic , late Carnian, Krasiejów,southwestern Poland .
Diagnosis.—A small spinicaudatan genus with subcircular outline; relatively large umbonal area; growth bands with ornamentation of minute punctae pattern in upper part of each growth band and radial striae in lower part of each growth band.
Remarks.— Krasiestheria shows certain resemblances to Palaeolimnadia Raymond, 1946 , and to Bilimnadia Novojilov, 1960, in comparatively large umbonal region, but differs from them in its surface ornament pattern.
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