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Carlquistoxylon australe
Carlquistoxylon australe Nunes, Pujana, Escapa, Gandolfo, Cúneo I.A.W.A. J., (10.1163/22941932-20170206): 4. Aug 2018
- Name
- Carlquistoxylon australe
- Rank
- Species
- Generic Name
- [Genus] Carlquistoxylon
- Authors (Pub.)
- Nunes C. I.
Pujana R. R.
Escapa I. H.
Gandolfo M. A.
Cúneo N. R.
- Publication
- A new species of Carlquistoxylon from the Early Cretaceous of Patagonia (Chubut province, Argentina): the oldest record of angiosperm wood from South America [2018/8]
- Journal
- IAWA Journal
- Issue
- 10.1163/22941932-20170206
- Page number
- 4
- Year
- 2018
- Fossil Status
- stems (wood)
- Stratigraphy
- Albian
- Location
- “La Flecha Pb 1”, La Flecha ranch, Chubut province, Argentina
- Paleoregion
- America (South)
Data for Holotypus
- Repository
- Museo Paleontologico Egidio Feruglio, Trelew, Argentina
- Repository Number
- MPEF-Pb 7018
- Diagnosis
- Growth rings boundaries indistinct. Vessels solitary and in radial multiples of 2–4, sometimes more; tangential diameter usually smaller than 100 μm; normally 30–80 vessels per mm2. Vessel-ray parenchyma pits opposite to scalariform, when opposite oval to horizontally elongated. Axial parenchyma absent. Rays 1–4 cells wide (uniseriate rays very rare), heterocellular, with procumbent and square cells mixed through the ray, upright cells occasionally present at the ray margin and throughout the ray.
