Back
Cordaitanthus compactus
Cordaitanthus compactus Fry J. Paleontol., 30(1): 39. 28 Feb 1956
- Name
- Cordaitanthus compactus
- Rank
- Species
- Generic Name
- [Genus] Cordaitanthus
- Authors (Pub.)
- Fry W. L.
- Publication
- New Cordaitean cones from the Pennsylvanian of Iowa [1956/2]
- Journal
- Journal of Paleontology
- Volume
- 30
- Issue
- 1
- Page number
- 39
- Year
- 1956
- Fossil Status
- fructifications
- Stratigraphy
- Moscovian
- Strat. comment
- Desmoinesian
- Location
- Williamson Mines, Lucas County, Iowa, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Cornell University, lthaca, New York, USA
- Repository Number
- -5-2.1-1; W- 5-2.1-3; W-5-2.1-11
- Diagnosis
- Cone of cordaitean plant 3.8 cm. long in preserved portion. Secondary fertile shoots arranged in two rows on primary fertile branch. Secondary fertile shoots very closely spaced and touching, measuring 10.0 mm. long X5.3 mm. wide having a rectangular shape in longitudinal section. Only 30-50 sterile appendages on secondary fertile shoots. Appendages of two types: sheathing and acicular. Sheathing sterile appendages 3.5 mm. wide X4.0 mm. long attached to axis of secondary fertile shoot by broad base, extending out perpendicularly from the axis before bending abruptly tipwards. Cells of sheathing appendages of two types: adaxially, parenchyma and abaxially, sclerenchyma with transverse end walls. Adaxial parenchyma zone containing few lacunae. Acicular sterile appendages to 8.0 mm. long, folding over and inward at the apex of the secondary fertile shoot. Primary fertile branch characterized by an anastomosing canal system surrounded by parenchyma. Sex not ascertained.
Nomenclatural synonyms (basionyms)
Species
