Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 15. 1992. (Budapest, 1992)

Order TEREBRATULIDA WAAGEN, 1883 Suborder TEREBRATULIDINA WAAGEN, 1883 Superfamily TEREBRATULACEA GRAY, 1840 Family TCHEGEMITHYRIDIDAE TCHORSZHEVSKY, 1972 Subfamily LOBOTHYRIDINAE MAKRIDIN, 1964 Genus Lobothyris BUCKMAN, 1918 Lobothyris punctata (SOWERBY, 1812) (Pl. IV, Fig. 2; Text-fig. 23) 1837 Terebratula punctata SOWERBY - Sowerby: p. 32, pl. 15, fig. 4. 1871 Terebratula punctata SOWERBY - Quenstedt: p. 322, pl. 46, figs. 25-27. 1885 Terebratula punctata SOWERBY - Parona: p. 249, pl. 3, figs. 16., 25., pl. 4. 1886 Terebratula punctata SOWERBY - Di Stefano: p. 82, pl. 3, figs. 21-30. 1889 Terebratula punctata SOWERBY - Geyer: p. 1, pl. 1, figs. 1-16. 1905 Terebratula punctata SOWERBY - Rau: p. 46, pl. 3. (23.), figs. 15-33. 1924 Terebratula punctata SOWERBY - Maugeri-Patané: p. 30, pl. 1, fig. 6. 1953 Terebratula punctata SOWERBY - Rossi Ronchetti and Brena: p. 119, pi. 10, fig. 1. 1954 Terebratula punctata SOWERBY - Conti: p. 204, pi. 10, fig. 6. 1964 Lobothyris punctata SOWERBY - Sacchi Vialli: p. 14, pi. 3, figs. 1-12. 1966 Lobothyris punctata SOWERBY - Siblik: p. 138, pl. 1, fig. 1. 1990 Lobothyris punctata SOWERBY - Ager: p. 13, pl. 1, fig. 1. and the maximum convexity are situated at half of the length. The beak is small and erect. There are two short beak ridges on the pedicle valve. The lateral commissures and the anterior commissure are straight. The shell surface is punctate, bearing some growth lines. Internal characters: There were no adequate specimens available for serial sectioning due to the paucity of the material. Remarks: Lobothyris punctata shows significant intraspecific variation, a number of subspecies has been distinguished. Geyer (1889) listed 11 varieties. In our case the small specimen number and the poor preservation render the subspecific identification impossible. Recently Ager (1990) dealt with British Liassic Terebratulida. In his opinion L. punctata occurs only in the Pliensbachian of Britain, earlier Lobothyris was represented by other species. The fauna of Lókút Hill is Material: 2 complete specimens. Dimensions (mm): Specimen M.91.22. (Text-fig. 23) length: 14.7, width: 14.3, thickness: 6.3. Text-fig. 23 - Drawing of Lobothyris punctata Description - External characters: Medium-sized shell, circular in outline. The length and the width are nearly equal, the thickness is smaller than half of the length. The angle between the lateral margins is about 100°. Biconvex form, the pedicle valve is more convex than the brachial one. The maximum width