Back
Laricioxylon erkovetskiense
Laricioxylon erkovetskiense Blokhina, O.V. Bondarenko Paleontol. Zhurn., 2016, (4): 100. 2016
- Name
- Laricioxylon erkovetskiense
- Rank
- Species
- Generic Name
- [Genus] Laricioxylon
- Authors (Pub.)
- Blokhina N. I.
Bondarenko O. V.
- Publication
- Iskopaemaja drevesina Laricioxylon erkovetskiense sp. nov. (Pinaceae) iz miotsenovykh otlozhenij Erkovetskogo burougol'nogo mestorozhdenija (Priamur'je) [2016]
- Journal
- Paleontologicheskii Zhurnal
- Annee/Jahrgang
- 2016
- Issue
- 4
- Page number
- 100
- Year
- 2016
- Fossil Status
- stems (wood)
- Stratigraphy
- Miocene
- Strat. comment
- Sazankovian suite
- Location
- Yuzhnyj razrez, Erkovetskii Brown Coal Bassin, Amur Region, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Institute of Biology and Soil Science, Russian Academy of Sciences, Vladivostok, Russian Federation
- Repository Number
- Coll. 22, № ER 22/3-122
- Diagnosis
- Growth rings distinct. Pits in radial tracheid walls are predominantly uniseriate, sometimes also opposite biseriate, arranged into 1–5(7) pit
pairs. Pits are circular (20–24(26) µm in diameter) to elliptic (16–18 × 22–24 µm in size). Crassulae occur between pit pairs within biseriate pitting. Pits in tangential tracheid walls are abundant, uniseriate and biseriate, 5–7 µm in diameter. Uniseriate rays are of 1–30(39) cells high, sometimes with 2–4(11) biseriate layers. Inner walls of ray tracheids are smooth. Normal vertical resin canals are surrounded by 6–10 thick-walled epithelial cells, whereas horizontal resin canals are lined by 6–9(10) thick-walled epithelial cells.
Horizontal resin canals occur in biseriate or bi-triseriate rays with equal (up to 2–15 cells long) or unequal uniseriate ends: short ends of 1–6 and long ends of 10–21(34) cells. Piceoid pits are of 1–8(9) per cross-field 5–6 µm in diameter.
