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Phasmatocycas bridwellii
Phasmatocycas bridwellii Axsmith, Serbet, M. Krings, T.N. Taylor, Ed.L. Taylor, Mamay Amer. J. Bot., 90(11): 1587. 14 Nov 2003
- Name
- Phasmatocycas bridwellii
- Rank
- Species
- Generic Name
- [Genus] Phasmatocycas
- Authors (Pub.)
- Axsmith B. J.
Serbet R.
Krings M.
Taylor T. N.
Taylor E. L.
Mamay S. H.
- Publication
- The enigmatic Paleozoic plants Spermopteris and Phasmatocycas reconsidered [2003/11]
- Journal
- American Journal of Botany
- Volume
- 90
- Issue
- 11
- Page number
- 1587
- Year
- 2003
- Fossil Status
- foliage (fertile)
- Stratigraphy
- Upper Pennsylvanian
- Strat. comment
- Virgilian
- Location
- Baker University campus, Baldwin City,
Douglas County, Kansas, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Natural History Museum, Kansas University, Lawrence, Kansas, USA
- Repository Number
- Slab #8129
Data for Paratypus
- Repository
- Natural History Museum, Kansas University, Lawrence, Kansas, USA
- Repository Number
- #8127 (Fig. 1), #8134 (Fig. 7), #8140 (Fig. 8),
#8145 (Fig. 9).
- Diagnosis
- Ovulate taeniopterid leaves with inflated,
multistranded midrib, leaf simple, lamina on each side of
midrib narrow, laterally attached to midrib, entire margined,
lamina venation sparse (up to 15 veins/cm), veins simple or
once bifurcating in their course to the margin; ovules in two
longitudinal rows beneath lamina, confined to distal half of
leaf, individual ovules slightly flattened, attached at their base
to the lateral side of the midrib with micropylar region oriented
1808 from midrib, paired apical extensions producing
cleft, ovules closely appressed to lamina producing persistent
depressions in abaxial side of the lamina.
