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Itaquixylon heterogenum
Itaquixylon heterogenum Wanderley, E.F. Pires, da Rosa, Spiekerm., D. Uhl, Jasper Foss. Impr., 72(3-4): 254. 30 Dec 2016
- Name
- Itaquixylon heterogenum
- Rank
- Species
- Generic Name
- [Genus] Itaquixylon
- Authors (Pub.)
- Wanderley J. R. B.
Pires E. F.
da Rosa Á. A. S.
Spiekermann R.
Uhl D.
Jasper A.
- Publication
- A new fossil Fabaceae wood from the Pleistocene Touro Passo Formation of Rio Grande do Sul, Brazil [2016/12]
- Journal
- Fossil Imprint
- Volume
- 72
- Issue
- 3-4
- Page number
- 254
- Year
- 2016
- Fossil Status
- stems (wood)
- Stratigraphy
- Upper Pleistocene
- Strat. comment
- 14,6 [Touro Passo Formation]
- Location
- Itaqui city, Rio Grande do Sul, Brazil
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- UFSM, Rio Grande do Sul, Brazil
- Repository Number
- UFSM 12032
- Diagnosis
- Angiosperm wood, diffuse porosity, numerous vessels in tangential bands; vessels generally solitary, sometimes in radial multiples of 3 to 5, circular to oval in outline, with narrow diameter and short length, helical thickenings absent, tyloses present; simple perforation plates; alternate intervessel pits, vestured, circular, small with lenticular irregular aperture slightly oblique; vessel-ray pits and vessel-parenchyma pits bordered; libriform fibres, non-septate, extremely short and narrow, with simple minute pits; paratracheal axial parenchyma, vasicentric and scanty and apotracheal axial parenchyma diffuse; rays are nume. rous, exclusively heterocellular, composed of procumbent and square marginal cells, short and extremely narrow, simple pits of minute size; mostly uniseriate, less frequently biseriate and triseriate, rarely tetraseriate; aggregate rays are absent.
