Zeilleria moravica (ETTINGSH.) BUREAU , 1914

Cleal, Christopher J., Strullu-Derrien, Christine & Spencer, Alan R. T., 2024, Early Coal Swamp Vegetation From The Serpukhovian Lower Clackmannan Group Of Scotland, Fossil Imprint 80 (1), pp. 35-67 : 47

Zeilleria moravica (ETTINGSH.) BUREAU, 1914

Text-fig. 6d

1865 Trichomanes moravicum ETTINGSH. , p. 77, pl. 6, fig. 4.

1914 Zeilleria moravica (ETTINGSH.) BUREAU , p. 276.

1924 Zeilleria moravica (ETTINGSH.) BUREAU ; Kidston, p. 441, pl. 62, figs 3–5, pl. 108, fig. 4.

D e s c r i p t i o n. Fragments of pinnae with alternate pinnules, 5‒10 mm long. Pinnules deeply incised into up to six linear-acute, filiform segments; in larger pinnules the segments may be bifid. A single slender vein runs along each segment of pinnule.

R e m a r k s. None of the Scottish specimens have yielded reproductive structures but Bureau (1914) reported pinnules of this species sometimes had “capsules” borne terminally on the lobes, which resemble Zeilleria sporangia.

O c c u r r e n c e s. Mainly in Upper Limestone Formation, between below the Orchard Limestone and the Calmy Limestone; also one record from the Limestone Coal Formation.

Order Lyginopteridales CORSIN, 1960

R e m a r k s. The taxonomy of the lyginopteridalean fronds is based on Cleal and Thomas (2023).

Figures

Text-fig.6.a:SphenophyllumtenerrimumETTINGSH. exHELMHACKER;RobroystonColliery,2.8kmSEofBishopbriggs,Lanarkshire; ca.10m below Orchard Limestone, Upper Limestone Formation; BGS Kidst.156. b, c: Pecopteris aspera BRONGN.; Cuthill Shore (near highwater mark) between Musselburgh and Prestonpans, Haddingtonshire; between Nos 4 and 5 Limestones, Upper Limestone Formation; BGS Kidst.5415 (b), BGS Kidst.4517 (c). d: Zeilleria moravica (ETTINGSH.) BUREAU; Thorneycroft No. 1 Borehole, 0.5 km NE of Cumbernauld Railway Station, Dumbartonshire; 389 m depth, Limestone Coal Formation; BGS Kidst.2420. Scale bars = 5 mm (a, b), 10 mm (c, d).