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Cupressinoxylon llantenesense
Cupressinoxylon llantenesense Gnaed., Zavatt. J. Paleontol., 94(3): 402. 2 Mar 2020
- Name
- Cupressinoxylon llantenesense
- Rank
- Species
- Generic Name
- [Genus] Cupressinoxylon
- Authors (Pub.)
- Gnaedinger S.
Zavattieri A. M.
- Publication
- Coniferous woods from the Upper Triassic of southwestern Gondwana,
Tronquimalal Group, Neuquén Basin, Mendoza Province, Argentina [2020/3]
- Journal
- Journal of Paleontology
- Volume
- 94
- Issue
- 3
- Page number
- 402
- Year
- 2020
- Fossil Status
- stems (wood)
- Stratigraphy
- Upper Triassic
- Strat. comment
- Upper part of the Llantenes Formation (Tronquimalal Group)
- Location
- Llantenes Creek, Llantenes Depocenter, southern Mendoza Province, northeastern border of the Neuquén Basin, Argentina
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA-PB), CCT-CONICET-MENDOZA, Mendoza, Argentina
- Repository Number
- IANIGLA PB 769 (1tr; 2–5lr; 6 lg)
Data for Paratypus
- Repository
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA-PB), CCT-CONICET-MENDOZA, Mendoza, Argentina
- Repository Number
- IANIGLA PB 765 (1–4tr; 5–9lr; 10–12lg)
- Diagnosis
- Secondary xylem with distinct growth rings.
Abietinean wood type. Radial pitting of tracheids bordered,
circular and separate (rarely contiguous), predominantly
uniseriate, some uniseriate with biseriate portions opposite.
The torus-margo pit with thick membrane present. Tangential
wall of tracheids uniseriate and separate pits. Cross-fields
cupressoid-type, in one and two horizontal rows of pits with one to four cupressoid pits,
frequency range is two to four per field. Rays uniseriate,
uniseriate to partially biseriate, and rarely biseriate, and the
average height is medium. Axial parenchyma diffuse and scarce.
