Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 18. 1996. (Budapest, 1996)

There are small anterior and posterior marginal depressions. The surfaces of the well preserved specimens are reticulated. The left valve overlaps the right one throughout with a ventral maximum. Comparison: This species similar to C. liassica (Drexler, 1958) except the depressions and reticulation. Dimensions: L = 0.53 - 0.69 mm, H = 0.38 - 0.43 mm, L/H = 1.39 - 1.64 (juv?: L = 0.38 mm, H = 0.28 mm, L/H = 1.36) Material: 92 specimens. Cardobairdia iiasica (Drexler, 1958) (Pl. II: 3) 1958. Krausella ? Iiasica n. sp. - DREXLER, p. 517., PI. 23., f. 3. 1979. Cardobairdia Iiasica (Drexler, 1958) - HERRIG, 1979C, pp. 1343-1344., Abb. 1., Pl. 1., f. 1-2. 1993. Cardobairdia Iiasica (Drexler, 1958) - HARLOFF, pp. 151-152., PI. 13., f. 6-8. 1994. Cardobairdia Iiasica (Drexler, 1958) - HARLOFF & JÄGER, p. 40., PI. 8., f. 8. Remarks: Besides the typical forms there are more elongate ones in these material. Dimensions: L = 0.43 - 0.51 mm, H = 0.27 - 0.32 mm, L/H =1.55-1.61 Material: 54 specimens. Stratigraphical and geological distribution: Sinemurian - L.Toarcian, Germany, France, Denmark. Cardobairdia sp. 1 (Pl. II: 4) Remarks: The right valve reach posteriorly beyond the left one, its dorsal outline is straight or gently arched, the anterior outline asymmetrical, the ventral outline is fairly arched and posteriorly converge to the dorsal outline, the posterior outline is broken and acute. The outline of the left valve is more angulate as that of Iiasica. Dimensions: L = 0.51 - 0.61 mm, H = 0.34 - 0.41 mm, L/H = 1.49 - 1.60 Material: 22 specimens. Cardobairdia sp. 2 (Pl. II: 5) Remarks: The anterior outline of the left valve is asymmetrically rounded, the dorsal arch is very high, the upper part of the posterior outline is concave, the ventral part is convex, the ventral outline is fairly and symmetrically arched. The distinctly acute posterior end reaches beyond the right valve. The anterior outline of the right valve is nearly symmetrically rounded, the dorsal outline is nearly straight, the posterior outline is truncated, the ventral outline is nearly straight. The left valve overlaps the right one except the posterodorsal corner. Dimensions: L = 0.68 mm, H = 0.44 mm, L/H = 1.55 Material: 1 specimen. Fragm. Min. et Pal., 18., 1996 37