Zlivifructus microtriasseris (Erw.Knobloch et Mai) Heřmanová, J.Kvaček, Halamski, Zahájská et Šilar

Plant Fossil Names Registry Number: PFN000540

Act LSID: urn:lsid:plantfossilnames.org:act:540

Authors: Z. Heřmanová, J. Kvaček, A. T. Halamski, P. Zahájská & J. Šilar

Rank: species

Basionym: Caryanthus microtriasseris Erw.Knobloch et Mai

Genus: Zlivifructus Heřmanová, Dašková et J.Kvaček in Heřmanová, Dašková, Ekrt & Kvaček

Reference: Heřmanová, Z., Kvaček, J., Halamski, A. T., Zahájská, P. & Šilar, J. (2019): Reinterpretation of fossil reproductive structures Zlivifructus microtriasseris (Normapolles complex, Fagales) from the Czech and Polish Late Cretaceous. – Review of Palaeobotany and Palynology 268: 88–94.

Page of description: 90

Types

Holotype F 3872, National Museum, Prague, the Czech Republic
Figures: pl. VIII, fig. 9

Note: Refigured by Heřmanová et al. (2019: Rev. Palaeobot. Palynol., 268: pl. I, fig. 1, pl. III, fig. 2).

Inventory number and repository according to Heřmanová et al. (2019: Rev. Palaeobot. Palynol., 268: 90).

Knobloch and Mai (1983: 321) used no. SEM EK 5186 for the holotype.

Original protologue

Fruits oval to rounded in profile, more or less flattened, apex without protrusion, base rounded. Hypanthium covering about four fifths of the fruit. Vascular bundles not prominent , straight. Fruits very s mall. Diameter: 0,4–0,5 mm.

Emended diagnosis

Heřmanová et al. (2019: Rev. Palaeobot. Palynol., 268: 91):
Flowers/fruits round; very small; apex concave; base slightly convex or slightly concave; perianth persistent, fused basally forming hypanthium; lateral andmedial attachment scars of tepals forming ringmidway between base and apex; lateral faces of fruit show two ribs or ridges.

Stratigraphy

Cretaceous, Upper Cretaceous
Klikov Formation, (Late Turonian–Santonian) (stratigraphy according to Heřmanová et al. 2019: Rev. Palaeobot. Palynol., 268: 91)

Locality

Czech Republic
Záblatí, borehole 65/21, depth 34.0–35.0 m, grey clay