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

Original diagnosis/description

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