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Trochiliscus herbertae
Trochiliscus herbertae R.E. Peck J. Paleontol., 8(2): 115. Jun 1934
- Name
- Trochiliscus herbertae
- 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
- Middle Devonian
- Location
- Calcite Quarry, Rogers City, Michigan, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- University of Missouri, St. Louis, USA
- Repository Number
- 31003-4
- Diagnosis
- Oogonium coronulate, subspherical, small, ranging from 0.5 mm to 0.8 mm in height, slightly higher than wide or with subequal diameters, greatest transverse diameter about mid-height. Base and summit horizontally truncate, summit more deeply than base. Ridges cellular, nine, completing about a fourth turn around the oogonium, equatorial angle 30° to 35°. The ridges are of uniform width from base to summit, comparatively broad, very convex, but occasionally each has a shallow, narrow median groove. Intercellular furrows narrow and deep. Coronula cells nine, deeply concave on outer surface, corresponding in position with the cellular ridges and forming an erect to suberect parapet-like ring around the large summit orifice, the inner surface of the coronula ring constituting a broad funnel to the opening. Nature of the oospore membrane unknown.
