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Karinschmidtia rotulae
Karinschmidtia rotulae M.E. Collinson, Manchester, V. Wilde Abh. Senckenberg. Naturf. Ges., 570: 42. 29 Jun 2012
- Name
- Karinschmidtia rotulae
- Rank
- Species
- Generic Name
- [Genus] Karinschmidtia
- Authors (Pub.)
- Collinson M. E.
Manchester S. R.
Wilde V.
- Publication
- Fossil fruits and seeds of the Middle Eocene Messel biota, Germany [2012/6]
- Journal
- Abhandlungen [herausgegeben von] der Senckenbergischen Naturforschenden Gesellschaft
- Volume
- 570
- Page number
- 42
- Year
- 2012
- Parent Taxon
- [Genus] Karinschmidtia
- Fossil Status
- fruits
- Stratigraphy
- Lutetian
- Location
- Messel, Landkreis Darmstadt-Dieburg, Hesse, Germany
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Senckenberg Naturhistorische Sammlungen Frankfurt, Senckenberg Forschungsinstitut und Naturmuseum, Frankfurt am Main, Germany
- Repository Number
- SM.B Me 21233
- Diagnosis
- Fruit circular to subcircular shape (lateral view), maximum diameter 23.4–29 mm. Preserved short straight area with a possible pedicel scar, from which longitudinal strands extend into endocarp sinus. Adjacent to the probable pedicel scar, the junction between the flat and rounded margin appears to represent the base of the style. Pericarp (outer cuticular envelope) commonly preserved, wrinkled and folded during compaction. Cuticle (proven by fluorescence) resistant, reflecting a polygonal pattern of epidermal cells without stomata. Cuticle seen on broken specimens to envelope both lateral faces of the endocarp. Beneath the pericarp cuticle are dense dark striae, possibly representing fibres, that usually radiate from the periphery of the central area of the endocarp, but we have no evidence for attachment. Striae over the central area. Endocarp bisymmetric, horseshoe-shaped, dorsiventral length 11.1–13 mm, width 10.5–13 mm, laterally flattened, subcircular to slightly obovate in lateral view with broad rounded dorsal surface, with a pair of concentric horseshoe-shaped lateral crests on both lateral faces, running around plane of bisymmetry. Lateral crests surrounded by a single dorsal crest from which a winglike structure extends. Base oblique with prominent sinus on isolated endocarps. Obpyriform smooth central condylar depression, more or less flat. Central area smooth with no obvious foramen. Dorsal crest and paired lateral crests equidistant from each other. One limb is slightly longer than the other. The endocarp lacks nodules, spines or radial ornamentation apart from the wing-like fibrous flange on the dorsal surface.
