Neomeris plagnensis Deloffre, Thyrsoporella-Trinocladus 1970
- 1. Lerchenauerstr. 167, 80935 Munich, Germany
- 2. 2 Department of Geology, Yazd University, 89195 - 741 Yazd, Iran
- 3. Department of Geology, Payame Noor University, Tehran, Iran, Po Box 19395 - 3697
Description
Neomeris plagnensis Deloffre, 1970
Fig. 7
*1970 Neomeris plagnensis n. sp. – Deloffre, p. 356-357, pls. 2-3.
1977 Neomeris plagnensis Deloffre – Deloffre et al., p. 41, pl. 5, figs. 3-7.
1982 Neomeris plagnensis Deloffre – Deloffre and Génot, p. 144-145, pl. 14, figs. 2-5.
1993 Neomeris plagnensis Deloffre – Kuss and Herbig, p. 275, pl. 4, figs. 7-8, pl. 8, figs. 1-3.
Remarks: This species, characterized by ovoid fertile ampullae combined with a comparably large main axis, was originally described from the Thanetian of France (Deloffre, 1970). From Central Iran N. plagnensis was reported by Deloffre et al. (1977, pl. 5, fig. 7) from bioclastic packstones with Halimeda sp., bryozoans, gastropods, and small rotaliids, a microfacies comparable to our samples from the Chehel Kaman Formation. Deloffre et al. (1977, p. 41, translated) reported specimens “slightly larger, probably corresponding to better developed individuals thriving in an ecologically more favourable environment”, an observation obtained also from our material.
Dimensions (in mm); data from Deloffre (1970) in brackets:
External diameter 1.0-1.4 (0.625- (D): 1.175) Diameter axial cavity 0.50-0.65 (0.35-0.8) (d):
d/D: 0.43-0.64 (0.63-068) wall thickness (e): 0.17-0.39 (0.1-0.3) vertical spacing (h): 0.15-0.16 (0.125 - 0.175) diameter fertile am- 0.08-0.14 (0.1-0.125) pullae (ds):
Maximum length (L): 4.6 (3.6)
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Dasycladaceae
- Genus
- Neomeris
- Kingdom
- Plantae
- Order
- Dasycladales
- Phylum
- Chlorophyta
- Scientific name authorship
- Deloffre, Thyrsoporella-Trinocladus
- Species
- plagnensis
- Taxon rank
- species
- Taxonomic concept label
- Neomeris plagnensis Deloffre, 1970 sec. SCHLAGINTWEIT, RASHIDI & MOSAVINIA, 2021
References
- Deloffre, R., 1970. Niveau a Algues dans le Sparnacien de la region de Plagne (Petites-Pyrenees-Haute - Garonne) et observations sur le genre Neomeris Lamouroux, 1816. Bulletin du Centre de Recherches Pau-SNPA, 4 (2): 353 - 379.
- Deloffre, R., Poignant, A. F., Teherani, K., 1977. Algues calcaires de l' Albo-Aptien au Paleocene de l' Iran central. Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, 1: 29 - 57.