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Podocarpoxylon atuelense
Podocarpoxylon atuelense Gnaed. in Gnaed., Garc.-Massini, Bechis, Zavatt. Ameghiniana, 52(4): 456. 12 May 2015
- Name
- Podocarpoxylon atuelense
- Rank
- Species
- Original spelling
- atuelensis
- Generic Name
- [Genus] Podocarpoxylon
- Authors (Name)
- Gnaedinger S.
- Authors (Pub.)
- Gnaedinger S.
García Massini J. L.
Bechis F.
Zavattieri A. M.
- Publication
- Coniferous woods and wood-decaying fungi from the El Freno Formation (Lower Jurassic), Neuquén Basin, Mendoza Province, Argentina [2015/5]
- Journal
- Ameghiniana
- Volume
- 52
- Issue
- 4
- Page number
- 456
- Year
- 2015
- Fossil Status
- stems (wood)
- Stratigraphy
- Lower Jurassic
- Strat. comment
- El Freno Formation
- Location
- Cerro La Brea section, Atuel River valley, south of
Mendoza province, 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 57 (CTES-PB, 585)
- Diagnosis
- Woody fragments of the secondary xylem with
growth rings distinct. A wood type (tracheid radial pitting) is
abietinean (close to 70–81% of the separate pits: abietinoid).
Pits are bordered, circular (close to100%), tracheids with
predominantly uniseriate pitting (close to 83–87%), may
have short sections with biseriate pitting (close to10–14%),
and biseriate (close to 2–3%). Pits are separate (close to 70-
81%), mixed (close to 12-16%) or contiguous (close to 7–
14%). Biseriate pits are opposite (close to 88–9%) or rarely
alternate (close to 8–12%). Cross-field pitting of the cupressoid
(podocarpoid type sensu Gothan, 1905) with 1–2
pits, some has 4 pits in marginal cross-field. Radial system
homogeneous, rays uniseriate and low with 2–6, 10 cells
height showing a mean of 4 cells. Axial parenchyma diffuse
and abundant, mostly in paired arrangement. Resin remains
or organic deposits are observed, mostly in axial parenchyma and in the ray cells.
