Menispermites sibiricus (Heer) Golovneva

Menispermites sibiricus (Heer) Golovneva

Figure 3A–G View FIGURE 3 , Figure 4E View FIGURE 4

1878 Acer sibiricum Heer , p. 46, pl. 10, figure 4b, 5a, pl. 12, figure 1b.

1878 Nymphaeites tener Heer , p. 44, pl. 13, figure 7.

1952 Menispermites kryshtofovichii Vachrameev , p. 194, pl. 14, figure 5, 6, pl. 15, figure 6, text-figure 41.

1955a Menispermites sibiricus (Heer) I. Lebedev non rite publ., p. 199, pl. 30, figure 1.

1955b Cissites sibirensis I. Lebedev , p. 203, pl. 31, figure 4.

1962 Menispermites sibiricus (Heer) I. Lebedev non rite publ. p. 258, pl. 49, figure 1.

1962 Menispermites simonovskiensis I. Lebedev , p. 258, pl. 65, figure 2.

1962 Menispermites tschulimensis I. Lebedev , p. 258, pl. 49, figure 5.

1968 Menispermites ribesifolius Budantsev , p. 11, pl. 2, figure 3.

1968 Menispermites stellatus Budantsev , p. 12, pl. 2, figure 4.

1974 Menispermites kryshtofovichii Zhilin , p. 99, pl. 37, figure 5, pl. 40, figure 7.

1974 Protoacerophyllum sibiricum (Heer) Iljinskaja , p. 151, text-figure 96, figure 4.

1975 Menispermites sp. , Philippova, p. 64, pl. 9, fig. 1; text-figure 3.

1986 Menispermites kryshtofovichii Shilin , pl. 8, figure 2, 4, pl. 9, figure 1.

1986 Menispermites syrdariensis Shilin , p. 113, pl. 9, figure 3, pl. 10, figure 4.

1991 Menispermites kryshtofovichii Vachrameev ; Herman and Lebedev, p. 67, pl. 2, figure 5, text-figure 13.

2006 Menispermites sibiricus (Heer) Golovneva , p. 1733, pl. 1, figure 1–3; 2010 Cissites cf. inscissus auct. non Herman; Philippova, pl. 28, figure 2.

2012 Menispermites sibiricus (Heer) Golovneva ; Golovneva and Nosova, p. 115, pl. 43, figure 1–7, pl. 84, figure 5–9, text-figure 8.1, 8.2.

2016 Menispermites sibiricus (Heer) Golovneva ; Herman et al., p. 727, pl. 23, figure 10, 11, text-figure 18.

2019 Menispermites sibiricus (Heer) Golovneva , p. 66, pl. 41, figure 1–5.

Lectotype (designated by Golovneva, 2006).

Specimen GIN 1800/11, Eastern Siberia, Chulym

River basin, Simonovo Formation, CenomanianTuronian; figure 3C.

Diagnosis (Golovneva, 2006). Leaves rounded or broadly ovate in outline, usually broader than long, 3–7 lobate or entire, with peltate, rounded,

cordate or truncate base and broadly triangular obtuse apex; lobes radially divergent, decreasing downwards, with additional secondary lobes or lobe-like teeth, which are rounded or triangular with obtuse apex; sinuses between lobes rounded;

margin entire or irregularly coarsely dentate,

varying in different leaves; venation palmate with

5–7 straight basal veins, which have several lateral branches on each side in the distal part; basal veins usually craspedodromous, other ones form loops near the margin; peltate base innervated by 2–5 thin veins, running from the beginning of basal veins.

Range and occurrence. Kazakhstan, Altykuduk Formation, Cenomanian, Zhirkindek Formation, Turonian; Western Siberia, Simonovo Formation, Cenomanian–Turonian; Eastern Siberia, Timmerdyakh Formation, Cenomanian; North-East of Russia, Valizhgen, Chingandzha and Arman formations, upper Turonian–Coniacian, Poperechnenskaya Formation, lower Coniacian.