Not public Taxaceoxylon torreyanum (Shimakura) Kräusel et K.P.Jain
Plant Fossil Names Registry Number: PFN000238
Act LSID: urn:lsid:plantfossilnames.org:act:238
Authors: R. O. K. Kräusel & K. P. Jain
Rank: species
Basionym: Taxoxylon torreyanum Shimakura
Reference: Kräusel, R. O. K. & Jain, K. P. (1964): New fossil coniferous woods from the Rajmahal Hills, Bihar, India. – The Palaeobotanist 12(1): 59–67., link
Page of description: 65
Types
Syntype 58421, 58422, 58423, Institute of Geology and Paleontology, Faculty of Science, Tohoku University, Sendai, Japan
Figures: pl. 17, figs 1–6
Note: Repository according to Ikeya et al (eds) (2002: The database of Japanese fossil type specimens described during the 20th Century (Part 2): 104).
Original diagnosis/description
Taxacean wood with spiral thickenings on walls of all tracheids, without resin cells and resin canals in normal wood. Growth rings present, feeble, transition from early to late wood gradual. Radial bordered pits of tracheids fairly small, circular or oval, separate, mostly in one, rarely in two, rows, oppositely arranged, with small, oval or oblong pit-apertures; tangential bordered pits abundant in late wood tracheids, small, circular, separate, arranged in 1–3 rows, with vertically elongated lenticular apertures. Spiral thickenings 1–3, mostly 2, relatively loose, right- or left-handed. Crassulae present, indistinct. Rays uniseriate, parenchymatous, horizontal walls fairly thin and slightly thickened, tangential wall very thin and smooth, lateral walls with several half-bordered pit-pairs; pit-pairs relatively small, circular, 2–6 in marginal, 1–4 in medial per field of early, 1–2 in marginal, 1 in medial of late wood; pit-apertures lenticular, vertically elongate. Parenchymatous tracheids and sclerenchyma present in traumatic wood.
Stratigraphy
Quarternary, Pleistocene
Kamikurata lignite bed
(Shimakura (1936) includes this bed into Lower Pleistocene)
Locality
Japan
Hodogaya-Motomati (Reg. No. 58423), and Sengen-tyo, Yokohama-city; Kamikurata (reg. No. 58421) and Sinano, Kawakami-mura; Naganuma (Reg. No. 58422), Toyota-mura, Kamakura-gun, Kanagawa-ken.
Ikeya et al (eds) (2002: The database of Japanese fossil type specimens described during the 20th Century (Part 2): 104) list as type localities:
Hodogaya-Motomachi, Kamikurata and Naganuma, Yokohama City, Kanagawa Prefecture
Plant fossil remain
fossil wood
Notes
The year 1963 is stated as a year of publication on the journal web site but Kloster and Gnaedinger (2018: Journal of Paleontology 92(4): 546–567) give year 1964.
Comments
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