Sloanea serratifolia (Ettingsh.) Kovar-Eder

Plant Fossil Names Registry Number: PFN003326

Act LSID: urn:lsid:plantfossilnames.org:act:3326

Author: J. Kovar-Eder

Rank: species

Basionym: Artocarpidium serratifolium Ettingsh.

Reference for this name: Kovar-Eder, J. (2024): Plant diversity at the final stage of the Miocene Climate Optimum - Revision of the flora of Leoben, Styria, Austria. – Acta Palaeobotanica 264(2): 123–286.

Page of description: 161

Types for basionym

Original diagnosis/description

Ein Blatt, dem des A. olmediaefolium Ung. verwandt, jedoch durch den regelmäßig gesägten Rand und die wie bei A. integrifolium stärker nach vorne gebogenen und unter spitzeren Winkeln eingefügten Secundärnerven von demselben abweichend. Die Tertiärnerven sind sehr fein, nicht hervortretend, bilden ein die ansehnlich langen Segmente ausfüllendes aus polygonalen Maschen zusammengesetztes Netz und hervortretende Randschlingen.

Emended diagnosis

Petiolate, very large-sized leaves, lamina obovate (to elliptic), mostly slightly asymmetrical, l × w up to 210 × 70 mm, base cuneate, at utmost base sometimes obtuse, apex acute/acuminate; margin mostly entire near base, then serrate with tiny, widely spaced teeth to more rarely entire; midvein strong, often bent; secondaries thin, eucamptodromous to semicraspedodromous, widely spaced, at moderate to narrow angles, curved, occasion-
ally branched; exmedial veinlets of secondaries or their branches looping near margin, further veinlets running into teeth; single long intersecondaries interspacing with secondaries, tertiaries (forked-)percurrent, almost perpendicular to secondaries, obtuse towards midvein; higher-order veins reticulate.

Etymology

Referring to the minutely serrate margin.

Stratigraphy

Neogene, Miocene
shales ~8.2 m above the coal seam, 14.9 ± 0.7 Ma (a tuff layer near the base of the shales overlying the coal seam

Locality

Austria
Moskenberg near Leoben, Leoben Basin, Styria