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Neuralethopteris sergiorum
Neuralethopteris sergiorum Goubet, Pfefferk., W.H. Gillespie PaleoBios, 20(3): 23. 15 Dec 2000
- Name
- Neuralethopteris sergiorum
- Rank
- Species
- Generic Name
- [Genus] Neuralethopteris
- Authors (Pub.)
- Goubet P.
Pfefferkorn H. W.
Gillespie W. H.
- Publication
- Neuralethopterids (trigonocarpalean pteridosperms) from the Early Pennsylvanian of eastern North America [2000/12]
- Journal
- PaleoBios
- Volume
- 20
- Issue
- 3
- Page number
- 23
- Year
- 2000
- Fossil Status
- foliage
- Stratigraphy
- Bashkirian
- Strat. comment
- Pocahontas Formation
- Location
- Pocahontas No. 8 coal, PSS 10, Garwood Section, West Virginia, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USN M 489970
- Diagnosis
- Pinnules large, elongated, even in the distal part of the pinnae, often broadly attached by the proximal side conferring a decurrent aspect, distal base contracted as if cut off obliquely, rarely cordate. Apex somewhat acute or
rounded. Basal part of pinnules often asymmetric, usually inserted perpendicularly on the rachis, slightly inclined in the distal part of the pinnae. Venation thin and dense, sometimes coarser and well spaced, midvein well-marked. Secondary veins leave midvein at an acute angle, curving near the midvein and then remaining straight, reaching the margin at a angle of close to 60° , forking two or three times. In the broadly attached pinnules, some veins emerge directly from the rachis. Ultimate pinnae oblong, tapering
in the distal part of the pinna.
