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Aclistochara cylindrica
Aclistochara cylindrica R.E. Peck J. Paleontol., 15(3): 292. 1 May 1941
- Name
- Aclistochara cylindrica
- Rank
- Species
- Generic Name
- [Genus] Aclistochara
- Authors (Pub.)
- Peck R. E.
- Publication
- Lower Cretaceous Rocky Mountain nonmarine microfossils [1941/5]
- Journal
- Journal of Paleontology
- Volume
- 15
- Issue
- 3
- Page number
- 292
- Year
- 1941
- Parent Taxon
- [Genus] Aclistochara
- Fossil Status
- gyrogonites
- Stratigraphy
- Aptian
- Location
- Bear River, Lincoln County, Wyoming, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- University of Missouri, St. Louis, USA
- Repository Number
- 31015-5
- Diagnosis
- Oogonium elongate, cylindrical, with a pointed projecting base and flattened summit; of medium size, averaging 0.6 mm. in length, and 0.4 mm. in width. The minimum and maximum length measured on 100 specimens is 0.5 mm. and 0.7 mm., the minimum and maximum width 0.35 mm. and 0.43 mm,. respectively. Spiral ridges mostly cellular, broad, gently convex, a few intercellular with a median line of division, the calcification fairly complete on all specimens. Equatorial angle 15? to 20?, 7 to 10 spirals visible in lateral view.
Nomenclatural synonyms (basionyms)
Species
