Arkell.1956.Jurassic..

PLATE 46
LOWER AND UPPER VOLGIAN
1. Riasanites rjasanensis (? Lahusen, 1883) Nitikin; the first figures, after Nitikin
(1888, pi. i, fig. 1). Ryazan. Type species of the genus Riasanites Spath,
1923. Xro.
2. Craspedites (Kachpurites) fulgens (? Trautschold, 1861), after Nikitin (1881,
pi. vi, fig. 48). Kamenik on the Upper Volga. Type species of the subgenus
Kachpurites Spath, 1923, designated by Spath, 1924. X i-o.
3. Craspedites nodiger (Eichwald, 1865-8), after Nikitin (1884, pi. v, fig. 19).
Kotelniki, near Moscow. X2/3.
4. Craspedites subditus (Trautschold) (= Am. koenigi d'Orb. non Sow.), after
d'Orbigny (1845, pi. 35, figs. 3, 4). Koroshovo, on the Moskva, above
Moscow. X 1 -o.
5. Lomonossovella [Titanites?] blakei (Pavlow), holotype, after Pavlow (1889,
pi. ii, fig. 4). Mniovniki, near Moscow. X i-o.
6. Epivirgatites nikitini (Michalski), lectotype now designated, after Michalski
(1890, pi. xii, fig. 5). Kashpur on the Volga. Type species of the genus
Epivirgatites Spath, 1923, designated by Spath, 1924. Xo-67.
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