Bothrodendron minutifolium (Boulay 1876) Zeiller 1879

By oilshale

• August 5

Taxonomy

Kingdom: Plantae
Phylum: Tracheophyta
Class: Lycopodiopsida
Order: incertae sedis
Family: Spenceritaceae
Genus: Bothrodendron
Species: Bothrodendron minutifolium
Author Citation (Boulay 1876) Zeiller 1879

Geological Time Scale

Eon: Phanerozoic
Era: Paleozoic
Period: Carboniferous
Sub Period: Pennsylvanian
Epoch: Late
International Age: Moskovian

Stratigraphy

Karviná Formation
Orzesze Layer

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 9 cm
Width: 8 cm

Location

Knurów
Gliwice (Powiat)
Upper Silesia
Poland

• Bothrodendron
• carboniferous
• Knurów
• pennsylvanian
• TFF-oilshale-Pfl2913
• upper silesia

Comments

Taxonomy from Gbif.org.

Description from Thomas & Cleal, 2022, p. 487: 'Large shoots with oval, laterally elongated leaf scars level with the stem surface and ligule pit apertures just above them. The stem surface is divided into small areas by fine, irregular and undulating grooves with each area containing groups of small puncti (probably stomata ‒ Thomas Citation1967a) in horizontal rows. Smaller shoots have leaf scars on raised leaf cushions whose surface features are like those on the largest shoot, while the smallest, leafy twigs have ovate-lanceolate, leaves that are about 5 mm long with acute pointed apices. The midrib is about 150 µm broad narrowing rapidly towards the leaf apex.'

References;
Boulay, N. (1876). Les terrain houiller du Nord de la France et sesvégétaux fossils. Caen: Université de Caen (Thèse de geologie).
Zeiller, R. (1879‒1880). Végétaux fossiles du terrain houiller dela France. Paris: Imprimerie Nationale. Atlas (1879), Text(1880).
Thomas, B. A., & Cleal, C. J. (2022). A reassessment of the leafy shoots of Pennsylvanian-age arborescent lycopods. Botany Letters, 169(4), 466–494. https://doi.org/10.1080/23818107.2022.2101517