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Sequoioxylon carneyvillense
Sequoioxylon carneyvillense L. Li, J.-H. Jin, Manchester Rev. Palaeobot. Palynol., 251: 4. 2 Jan 2018
- Name
- Sequoioxylon carneyvillense
- Rank
- Species
- Generic Name
- [Genus] Sequoioxylon
- Authors (Pub.)
- Li L.
Jin J.-H.
Manchester S. R.
- Publication
- Cupressaceae fossil remains from the Paleocene of Carneyville, Wyoming [2018/1]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 251
- Page number
- 4
- Year
- 2018
- Fossil Status
- stems (wood)
- Stratigraphy
- Paleocene
- Location
- road cut of the highway near Carneyville, Wyoming, northwestern USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- Museum of Biology, Sun Yat-Sen University, Guangzhou, China
- Repository Number
- USW057
- Diagnosis
- Growth rings distinct with abrupt transition from early wood to latewood;
circular bordered pits on radial tracheid walls uni- to triseriate, predominantly biseriate, opposite; notched pits present; circular bordered pits uni- and biseriate rarely present on tangential tracheid walls. Cross-field pits exclusively taxodioid, circular to oval, 1–4 pits per cross-field, arranged in one or two seriate; axial parenchyma diffuse, horizontal walls of parenchyma cells smooth, cells containing dark deposits; rays uniseriate, sometimes partially biseriate to occasionally partially triseriate; both horizontal and tangential walls of ray cells smooth; ray tracheids absent; resin ducts not observed.
