The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2024

IDNAME urn:idName:ifpni.org:species:991D4D81-53E2-E5DA-72BE-0B9A8712A0F6 species
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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.

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