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Maytenoxylon perforatum
Maytenoxylon perforatum M.J. Franco Historical Biol., 2018, 30(5 [10.1080/08912963.2017.1313840]): 3 [648]. 10 Apr 2017
- Name
- Maytenoxylon perforatum
- Rank
- Species
- Generic Name
- [Genus] Maytenoxylon
- Authors (Pub.)
- Franco M. J.
- Publication
- Small Celastraceae and Polygonaceae twigs from the Upper Cenozoic (Ituzaingó Formation) of the La Plata Basin, Argentina [2017/4]
- Journal
- Historical biology
- Annee/Jahrgang
- 2018
- Volume
- 30
- Issue
- 5 [10.1080/08912963.2017.1313840]
- Page number
- 3 [648]
- Year
- 2017
- Fossil Status
- stems (wood)
- Stratigraphy
- Pliocene
- Strat. comment
- Ituzaingó Formation
- Location
- Paraná basin, Arroyo El Espinillo fossiliferous locality, Entre Ríos Province, Argentina
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- CICyTTP-CONICET, Colección Paleobotánica, Diamante, Entre Ríos, Argentina
- Repository Number
- CIDPALBO-MEG 94, CIDPALBO-MIC 1133
- Diagnosis
- Diffuse porous; growth rings usually absent occasionally present;
vessels mainly solitary, occasionally in radial multiples and in
clusters, minute to medium in diameter; very small intervessel
pitting,
alternate to opposite; vessel-ray pitting with distinct borders
similar to intervessel pits to rounded with reduced borders
and apparently simple; simple perforation plates; parenchyma-like
fibre bands alternating with ordinary fibres, non-septate and septate
fibres; wood parenchyma diffuse and scanty, paratracheal
vasicentric; 1–6 seriate rays, heterocellular and homocellular;
simple perforated ray cells present.
