Back
Trochiliscus rugulatus
Trochiliscus rugulatus R.E. Peck J. Paleontol., 8(2): 115. Jun 1934
- Name
- Trochiliscus rugulatus
- Rank
- Species
- Generic Name
- [Genus] Trochiliscus
- Authors (Pub.)
- Peck R. E.
- Publication
- The North American Trochiliscids, Paleozoic Charophyta [1934/6]
- Journal
- Journal of Paleontology
- Volume
- 8
- Issue
- 2
- Page number
- 115
- Year
- 1934
- Parent Taxon
- [Genus] Trochiliscus
- Fossil Status
- gyrogonites
- Stratigraphy
- Frasnian
- Location
- Bird's Hill, southwest of Rockford, Iowa, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- University of Iowa, Iowa, USA
- Repository Number
- 691
- Diagnosis
- Oogonium noncoronulate, subspherical, of medium size, ranging in height from 0.6 mm to 0.8 mm, width equal to height, greatest transverse diameter at mid-height. Base and summit very slightly truncate. Ridges intercellular, eight, completing approximately a half turn around the oogonium, recurving to an almost radial position near the summit, equatorial angle about 30°. The ridges are sharp and narrow, separated by wide, shallow cellular furrows. Summit orifice surrounded by a low ridge connecting apical ends of spirals. Oospore membrane unknown.
