Schizomavella tenella
Creators
- 1. National Museum, Prague, Václavské nám. 68,115 79 Praha 1, Czech Republic
Description
Pl. 102, Fig. 1-4
v. * 1847 Cellepora tenella m. – Reuss p. 89, Pl. 11, Fig. 16 partim 1977 Schizomavella tenella (REUSS, 1847) – Vávra p. 126 2007 Schizomavella tenella (REUSS, 1847) – Zágoršek et al.
p. 211, Fig. 8A-B (cum syn.)
T y p e: Holotype deposited in the Natural History Museum Vienna under the number 1846.37.998 (identified by David and Pouyet, 1974).
M a t e r i a l: 40 specimens studied in detail; plus an additional one showing a different arrangement of the avicularia.
D i a g n o s i s: Colony encrusting, unilaminar with autozooecia arranged in parallel rows. Autozooecia are rectangular to oval, with a flat frontal wall. Frontal wall is perforated by small pseudopores (diameter about 10 µm). Lateral walls are wide, always very prominent and raise between adjacent autozooecia. Apertures have a wide sinus, oral spines are absent. Avicularia are adventitious, suboral with a pivotal bar, they are always situated proximally and very close to the aperture in a median position, tapering proximally and associated with a small umbo. The umbo is always nonporous. Ovicells are hyperstomial, large, about half to one third of the size of the autozooecia, with a strongly porous frontal wall. The pores which perforate the ovicells have the same diameter as those perforating the frontal wall.
R e m a r k s: Only one specimen from the section Kralice nad Oslavou shows a different position of the avicularia: close to the lateral walls (Pl. 102, Fig. 4). Due to the presence of all other characteristic features, mainly the identical structure of the ovicells (porous frontal wall), and this specimen is also identified as Schizomavella tenella (REUSS, 1847). For a detailed discussion of this species see Zágoršek et al. (2007).
Superfamily Schizoporelloidea JULLIEN, 1883
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5281/zenodo.13344847 (DOI)
- Journal article: http://publication.plazi.org/id/CD58FFCA5328FFB50763FFEB2D41FF81 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/316187B25338FFA5079BFD872F93F8E1 (URL)
Biodiversity
- Collection code
- T
- Family
- Bitectiporidae
- Genus
- Schizomavella
- Kingdom
- Animalia
- Order
- Cheilostomatida
- Phylum
- Bryozoa
- Scientific name authorship
- REUSS
- Species
- tenella
- Taxon rank
- species
- Type status
- holotype
- Taxonomic concept label
- Schizomavella tenella (REUSS, 1847) sec. ZÁGORŠEK, 2010
References
- Reuss, A. E. (1847): Die fossilen Polyparien des Wiener Tertiarbeckens. Ein monographischer Versuch. - Naturwiss. Abhadlung., 2 (1): 1 - 109.
- David, L., Pouyet, S. (1974): Revision des Bryozoaires Cheilostomes miocenes du Bassin de Vienne (Austriche). - Doc. Lab. Geol. Fac. Sc. Lyon, 60: 83 - 257.
- Zagorsek, K., Vavra, N., Holcova, K. (2007): New and unusual Bryozoa from the Badenian (Middle Miocene) of the Moravian part of the Vienna Basin (Central Paratethys, Czech Republic). - Neues Jahrbuch fur Geologie und Palaontologie 243: 201 - 215.