Pandanites ahnertii (KRYSHT.) GOLOVN., 2021

Golovneva, Lina, Bugdaeva, Eugenia, Volynets, Elena, Sun, Yuewu & Zolina, Anastasia, 2021, Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia, Fossil Imprint 77 (2), pp. 231-255 : 246

Pandanites ahnertii (KRYSHT.) GOLOVN. comb. nov.

Text-fig. 10e, j

B a s i o n y m. Pandanophyllum ahnertii KRYSHT., Otkrytie drevneishikh dvudolnykh pokrytosemennykh i ekvivalentov potomakskikh sloev na Suchane v Ussuriyskom krae [The discovery of the oldest dicotyledons angiosperms and equivalents of the Potomac beds on Suchan in the Ussuri region.], Izv. Geol. Komit. 49: 1364, pl. LIX, figs 1–3. 1929.

P l a n t F o s s i l N a m e s R e g i s t r y N u m b e r.

PFN002698 (for new combination).

L e c t o t y p e. Designated here. No. 3013/5a, coll. TSNIGR Museum, southern Primorye , Razdolnaya coal basin, Konstantinovka, Lipovtsy Formation, Aptian ( Kryshtofovich 1929: pl. LIX, fig. 1) . Among several leaf fragments at the surface of Kryshtofovich specimen, the longest leaf with preserved serration was chosen as the lectotype ( Text-fig. 10j 1 ).

P l a n t F o s s i l N a m e s R e g i s t r y N u m b e r.

PFN002700 (for lectotype designation).

D i a g n o s i s. Pandanophyllum foliis tenerrimis, linearibus, satis angustis, 0.4–1.0 cm, latis, margine spinuloso-ciliato-serratis, partim dublicato serratis, nervo mediano satis valido, nervis longitudinalibus lateralibus obsoletis, tenuissimis, circa 14–16 ( Kryshtofovich 1929).

Figures

Text-fig. 10. a–d: Araliaephyllum luciferum (KRYSHT.) GOLOVN., Partizansk, Severosuchan Formation, Aptian, a – spec. TSNIGRM 3013/1, lectotype, b – spec TSNIGRM 3013/2, c – spec. TSNIGRM 3013/4, d – spec. TSNIGRM 3013/3; e, j: Pandanites ahnertii (KRYSHT.) GOLOVN., Konstantinovka, Lipovtsy Formation, Aptian, TSNIGRM 3013/5, e – fragment of leaf margin, j – general view, j1 – lectotype, j2 – leaf, figured in (e); f: Araliaephyllum ussuriense (KRASSILOV) GOLOVN., Andreev Inlet, Frentsevka Formation, early-middle Albian, spec. IBBS 28/103; g: Araliaephyllum vittenburgii GOLOVN. et VOLYNETS, Podgorodenka coalfield, Galenki Formation, early-middle Albian, spec. IBBS 41/1, g1 – spec. IBBS 41/1a, holotype, g2 – spec. IBBS 41/1b; h: Dicotylophyllum sp. 1, Podgorodenka coalfield, Lipovtsy Formation, Aptian, spec. IBBS 28L-4; i: Sapindopsis sp., 3rd Kamenka, Frentsevka Formation, early-middle Albian, spec. IBSS 325/8. Scale bar 5 mm in a–h and 1 cm in i, j.

Text-fig. 1. Map of Primorye region, Russia. a – Razdolnaya coal basin; b – Partizansk coal basin.