Winslowia tuscumbiana

Name

Winslowia tuscumbiana

Rank

Species

Generic Name

[Genus] Winslowia

Authors (Pub.)

Dunn M. T. Atkinson P. Lacefield J. A. Rischbieter M. O.  

Publication

Winslowia tuscumbiana gen. et sp. nov. (Chaloneriaceae): a cormose, heterosporous, ligulate lycopsid reconstructed from the inside out from the Pride Mountain Formation (Late Mississippian/Serpukhovian) of Northern Alabama [2012/1]

Journal

International Journal of Plant Sciences

Volume

173

Issue

1

Page number

99

Year

2012

Fossil Status

stems

Stratigraphy

Serpukhovian

Strat. comment

Pride Mountain Formation

Location

Pride Quarry, north side of Hwy. 72, ca. 7 mi west of the intersection with Hwy. 43/13 west of Tuscumbia, Alabama, USA

Paleoregion

Laurussia (Laurentia)

Data for Holotypus

Repository

Herbarium (CAMU), Cameron University, Lawton, USA

Repository Number

18 sections and 79 cellulose acetate peels mounted on microscope slides of the permineralized stem and attached cormose base (PM-178A–R; CAMUPH 302A–R [fig. 2D], 304 [fig. 2F], 306 [fig. 7 D], 310 [fig. 3 F], 312 [fig. 4B], 313 [fig. 4 D, 6 A, F], 314 [fig. 4E, 5 D], 316 [fig. 5 B], 317, 319 [fig. 6 G], 321 [fig. 7 A], 322 [fig. 7 B], 323 [fig. 7 C], 338–404).

Num

2 D, F; 3 F; 4 B, E; 5 B, D; 6 A, F, G; 7 A, B, C, D

Pub.

Winslowia tuscumbiana gen. et sp. nov. (Chaloneriaceae): a cormose, heterosporous, ligulate lycopsid reconstructed from the inside out from the Pride Mountain Formation (Late Mississippian/Serpukhovian) of Northern Alabama [2012/1]

Data for Paratypus

Repository

Herbarium (CAMU), Cameron University, Lawton, USA

Repository Number

permineralized cormose base (PM-135) and 11 cellulose acetate peels mounted on microscope slides (CAMUPH 318, 405–416), permineralized cormose base (PM-200) and 28 cellulose acetate peels mounted on microscope slides (CAMUPH 307, 311, 315, and 417–444), permineralized stem sections and 4 cellulose acetate peels mounted on microscope slides (PM-179A–T; CAMUPH 303A–T, 305), and 41 compression hand samples (PM-110, 112, 120, 125, 141, 145, 143, 161A–B, 174, 177A–Q, 192, 226, 228, 229, and 241; CAMUPH 300, 301, 308, 309, 320, 324–337, and 445–458)

Diagnosis

Stems variably branched, rooting base bilobed, rootlets forked. Maximum height ca. 1 m. Coronate protostele without parenchyma. Mesarch/exarch protoxylem strands proximally and discontinuous bands of protoxylem distally. Multilayered cortex of three zones plus a periderm proximally and two zones without a periderm distally. Microphylls attached to distal portion of stem with triangular ligules. Lepidodendron-like leaf cushions present but rarely preserved. Sporophylls produced in fertile stem regions in conjunction with sterile microphylls.