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Dammaroxylon formosum
Dammaroxylon formosum E. Iamandei, S. Iamandei Acta Palaeontol. Roman., 4: 137. 2004
- Name
- Dammaroxylon formosum
- Rank
- Species
- Generic Name
- [Genus] Dammaroxylon
- Authors (Pub.)
- Iamandei E.
Iamandei S.
- Publication
- New conifers in Late Cretaceous lignoflora from the South Apuseni [2004]
- Journal
- Acta Palaeontologica Romaniae
- Volume
- 4
- Page number
- 137
- Year
- 2004
- Fossil Status
- stems (wood)
- Stratigraphy
- Maastrichtian
- Location
- medial basin of Mureş river, between Alba Iulia-Geoagiu-Deva-Zam, South Apuseni, Romania
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Muzeul Național de Geologie, Institutul Geologic al României, București, Romania
- Repository Number
- inv.no. 26477
- Diagnosis
- Tracheidoxyl with araucarian pitting
and araucarioid cross fields. Less distinct growth
rings, of 40-60 cells wide, devoid of any resin ducts.
Tracheids rounded in cross-section, thick-walled (16-
22 μm double wall), circular lumina. Radial
araucarian pitting, in 1-2(3) vertical rows, with round to tilted elliptic apertures, smaller pits tangentially
fewer. Wood parenchyma few, small simple pitted,
with smooth horizontal walls. Exclusive uniseriate
medullary rays, of 1-16(32) cells high, smooth thick-walled
cells (3-5 μm double wall), 13-16 μm
diameter, 20-37 μm high, frequency 9-16 rays on tg. mm., arcuate tangential walls without indentures,
rays homocellular - ray cells all procumbent, the
marginals higher, with hypermarginal unpitted
spaces of "Randzellen" type, araucarioid cross-fields
with alternate pits, more numerous within taller
marginal fields, having vertical to oblique apertures.
