Neoarthropitys gondwanaensis

Name

Neoarthropitys gondwanaensis

Rank

Species

Generic Name

[Genus] Neoarthropitys

Authors (Pub.)

Gnaedinger S. Cariglino B. Zavattieri A. M. Monti M. Gutiérrez P. R.  

Publication

Neoarthropitys gondwanaensis gen. nov. et sp. nov. from the Middle Triassic of Gondwana: an intermediate stage in the anatomical trend of Equisetalean stems [2020/8]

Journal

Review of Palaeobotany and Palynology

Volume

282

Page number

6

Year

2020

Fossil Status

stems (wood)

Stratigraphy

Anisian

Strat. comment

Quebrada de los Fósiles Formation

Location

Quebrada de los Fósiles Creek, Mendoza Province, Argentina

Paleoregion

America (South)

Data for Holotypus

Repository

Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA-PB), CCT-CONICET-MENDOZA, Mendoza, Argentina

Repository Number

A single petrified stem, IANIGLA PB 809: part of it was sectioned and mounted on permanent microscope slides as 11 transverse sections and 39 longitudinal sections

Num

2-7

Pub.

Neoarthropitys gondwanaensis gen. nov. et sp. nov. from the Middle Triassic of Gondwana: an intermediate stage in the anatomical trend of Equisetalean stems [2020/8]

Diagnosis

The secondary xylem consists of interfascicular rays and fascicular wedges. The tracheids of the fascicular wedges show scalariform pits, horizontally elongated and rarely circular, uniseriate and biseriate-opposite pits on their radial walls. The cross-fields show columns of up to 12 pits, some fields with groups of three pits and others with one and two pit columns. The horizontal and endwalls of the radial parenchyma cells distinctly pitted. The fascicular parenchymatous rays are uniseriate, uniseriate-partially biseriate and rarely biseriate.