Paraphyllanthoxylon anasazi

Name

Paraphyllanthoxylon anasazi

Rank

Species

Generic Name

[Genus] Paraphyllanthoxylon

Authors (Pub.)

Wheeler E. A. McClammer J. U. LaPasha C. A.  

Publication

Similarities and differences in dicotyledonous woods of the Cretaceous and Paleocene of San Juan Basin, New Mexico, USA [1995/1]

Journal

IAWA Journal

Volume

16

Issue

3

Page number

245

Year

1995

Fossil Status

stems (wood)

Stratigraphy

Maastrichtian

Strat. comment

Kirtland Shale

Location

Locality W6, buff brown clay-shale layer in McClammer Section 20, Betonnie-Tsosie 6, Rigby Section E. NE 114, Sectiom 10, T 22N, R 9 W, San Juan Basin, New Mexico, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Yale Peabody Museum of Natural History, New Haven, USA

Repository Number

YPM 30159, slides numbered 41, 42, 43

Num

34-38

Pub.

Similarities and differences in dicotyledonous woods of the Cretaceous and Paleocene of San Juan Basin, New Mexico, USA [1995/1]

Data for Paratypus

Repository

Yale Peabody Museum of Natural History, New Haven, USA

Repository Number

YPM 30147, slides numbered 32, 33, 34

Diagnosis

Wood diffuse-porous. Vessels solitary and in radial mUltiples of 2 or rarely 3; mean tangential diameter of 84 um (sd = 16); 12-37, mostly 20-25 per sq.mm; perforations exclusively simple; vessel element lengths 444-988 um; intervessel pitting crowded alternate, hexagonal in outline with included apertures, 8-11 um horizontal width; enlarged vessel-ray parenchyma pits with reduced borders, occurring throughout the ray contact area; tyloses present and appearing to segment the vessel. Parenchyma extremely rare, scanty paratracheal. Rays 2- or 3-seriate; mean multi seriate ray height of 234-294 /lID; heterocellular. Uniseriate rays extremely rare. Fibers septate and pits without distinct borders; thick-walled.