Reinvestigation of the Enigmatic Carboniferous Sphenophyte StrobilusCheirostrobusScott and Implications of In SituRetusotriletesSpores

Abstract

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A diverse Early Devonian palynoflora from the Waxweiler Lagerstätte (Klerf Formation, Rhenish Massif, Western Germany): palaeobotanical implications

“…Other spore taxa with implications for vegetation reconstruction are Retusotriletes rotundus , documented from the plant genera Crenaticualis and Sawdonia (Gensel 1980; Hotton et al 2001), and Retusotriletes cf. triangulatus , documented from Asteroxylon , Psilophyton and Tricherophyton (Gensel 1980; Wellman 2018; Neregato and Hilton 2019).…”

A Charcoalified Ovule Adapted for Wind Dispersal and Deterring Herbivory from the Late Viséan (Carboniferous) of Scotland

“…These rocks outcrop in cliff sections at Pettycur and at Kingswood End to the west, as well as in the intervening Pettycur Caravan site (Rex and Scott 1987). The nearby Pettycur limestone flora has been described in numerous publications (Scott et al 1984;Rex and Scott 1987;Neregato and Hilton 2019). Palynological dating of the Kinghorn Volcanic Formation has indicated that it belongs to the Raistrickia nigra-Triquitrites marginatus (NM) and Tripartites vetustus-Rotaspora fracta (VF) miospore zones (Brindley and Spinner 1989) of mid to late Asbian to early Brigantian regional substages of the Viséan stage (Monaghan and Pringle 2004), with absolute ages between 329 and 335 Ma (Monaghan and Pringle 2004;Monaghan and Browne 2010).…”