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Donponoxylon bennettii
Donponoxylon bennettii Tidwell, B.B. Britt, W.W. Wright Rev. Palaeobot. Palynol., 196: 41. 26 Apr 2013
- Name
- Donponoxylon bennettii
- Rank
- Species
- Generic Name
- [Genus] Donponoxylon
- Authors (Pub.)
- Tidwell W. D.
Britt B. B.
Wright W. W.
- Publication
- Donponoxylon gen. nov., a new spermatophyte axis from the Middle to Late Jurassic of Australia and New Zealand [2013/4]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 196
- Page number
- 41
- Year
- 2013
- Fossil Status
- stems (wood)
- Stratigraphy
- Jurassic
- Strat. comment
- Kumbarilla Beds, Birkhead Formation, and Walloon Coal Measures of Australia; False Islet Formation, New Zealand
- Location
- Chinchilla–Miles area and Cattle Downs, Queensland, Australia and Haldane Bay area, South Island, New Zealand
- Paleoregion
- Australia (New Zealand)
Data for Holotypus
- Repository
- Brigham Young University, Provo, USA
- Repository Number
- BYU 20201
Data for Isotypus
- Repository
- Miles Historical Society (MHS) Museum, Miles, Australia
- Repository Number
- MHS E147
Data for Paratypus
- Repository
- Brigham Young University, Provo, USA
- Repository Number
- BYU 20202, BYU 20203, BYU 20204, BYU 20206, BYU 20207, BYU 20209; also MHS E139, MHS E150
- Diagnosis
- Axes with anomalous secondary growth; central pith
surrounded by ring of primary sympodia, each with concentric
secondary xylem development about 60 mm or more across; more
development centrifugally; sometimes anastomosing; sometimes
central vascular segments elongated or broadly cuneate in transverse section, regularly to generally irregularly arranged. Primary xylem
is endarch; tracheid pitting uniseriate or biseriate; cross-field pits
single, podocarpoid, thin borders; axial parenchyma absent; rays
uniseriate; secondary vascular segments peripheral to central segments,
irregularly shaped, continuous to discontinuous concentric
rings paralleling each other tangentially.
