Fistulipora monticulosa Nikiforova 1933
- 1. Institut für Geowissenschaften der Christian-Albrechts-Universität zu Kiel, Ludewig-Meyn-Str. 10, D- 24118 Kiel (Germany) ae @ gpi. uni-kiel. de
- 2. Institute of Paleontology, University of Erlangen-Nürnberg, Loewenichstr. 28, D- 91054 Erlangen (Germany) basendar @ pal. uni-erlangen. de
- 3. University of Esfahan, Faculty of Earth Sciences, Esfahan (Iran) hamedani _ ali @ hotmail. com
Description
Fistulipora monticulosa Nikiforova, 1933 (Fig. 2A, B, D, E, G; Table 1)
Fistulipora monticulosa Nikiforova, 1933: 10, pl. 1, figs 9-15, text-figs 3, 4. — Morozova 1970a: 61, 62, pl. 1, fig. 2.
Fistulipora pseudomonticulosa Sakagami, 1980: 272, pl. 31, figs 4-6.
Fistulipora sp. cf. F. monticulosa – Sakagami 1976: 400, pl. 42, figs 3, 4.
LECTOTYPE (designated by Morozova 1970a). — Central Museum of Geological Prospecting, Saint Petersburg, Russia. Thin section No. 13 (Nikiforova 1933: pl. 1, fig. 13).Transcaucasia (Nakhichevan), River Arax; Gnishik Horizon, Middle Permian, Murgabian (= Wordian).
MATERIAL EXAMINED. — 4-3, 4-7-1, 4-12, 5-9, 5-11, 5-12, 9-5, 12x, 21-3, 23-8, 25-3.
OCCURRENCE. — Transcaucasia (Nakhichevan), Gnishik Horizon, Middle Permian, Murgabian (= Wordian). Sainbeyli: Central Turkey, Middle Permian. Abadeh: central Iran; Upper Permian (Araxopora araxensis -Horizon). Lakaftari: central Iran, Jamal Formation, Middle Permian.
DESCRIPTION
Encrusting colonies, often hollow, tubular (encrusting ephemeral cylindrical substrates). Encrusting sheets 0.6-2.2 mm thick, tubular colonies having rounded lumen 3-6 mm in diameter. Autozooecia budding from substrate at low angles. Autozooecial apertures rounded, having well developed, horseshoeshaped lunaria, spaced 3.5-4.5 in 2 mm. Autozooecial diaphragms rare to absent in short autozooecia (often developed at their bases), abundant in longer autozooecia, complete, thin, deflected orally. Vesicles polygonal in tangential section, arranged in 1-3 rows between autozooecia, having flat or slightly concave roofs, spaced 8-15 per 1 mm of the colony thickness. Maculae consisting of vesicular skeleton, rounded, 0.66-1.20 mm in diameter, spaced regularly on the colony surface.
COMPARISON
Sakagami (1980) described a new species Fistulipora pseudomonticulosa because of rare diaphragms in autozooecia. However, an investigation of a large amount of thin sections of the present material revealed a variation in the number of autozooecial diaphragms. Fistulipora monticulosa is similar to F. timorensis, which is widely distributed in Permian rocks of Asia (Indonesia, Thailand, Primorye, Iran). The most striking difference is the growth form: unilaminar encrusting, commonly tubular in F. monticulosa, multilamellar encrustings rare; usually uni- and multilamellar encrusting colonies in F. timorensis, tubular colonies unknown. Furthermore, apertures in F. timorensis are larger (0.35 vs. 0.29 mm in F. monticulosa).
Notes
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Linked records
Additional details
Identifiers
Related works
- Cites
- Figure: 10.5281/zenodo.4665452 (DOI)
- Is part of
- Journal article: 10.5281/zenodo.4665450 (DOI)
- Journal article: http://publication.plazi.org/id/0D6ED0351A20FFFEFFD1D63EF122FFDC (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/F157A84D1A23FFFBFD1FD58EF0BFFAD4 (URL)
Biodiversity
- Family
- Fistuliporidae
- Genus
- Fistulipora
- Kingdom
- Animalia
- Order
- Cystoporida
- Phylum
- Bryozoa
- Scientific name authorship
- Nikiforova
- Species
- monticulosa
- Taxon rank
- species
- Taxonomic concept label
- Fistulipora monticulosa Nikiforova, 1933 sec. Ernst, Senowbari-Daryan & Hamedani, 2006
References
- NIKIFOROVA A. I. 1933. - [Upper Paleozoic Bryozoans of Dshulfa Region]. Trudy Vsesoyusnogo Geologo-razvedochnogo obyedineniya 364: 1 - 44 (in Russian).
- MOROZOVA I. P. 1970 a. - [Late Permian Bryozoa]. Trudy Paleontologicheskogo Instituta 122: 1 - 347 (in Russian).
- SAKAGAMI S. 1980. - Permian Ectoprocta (Bryozoa) from the Abadeh Region, Central Iran. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 118: 269 - 289.
- SAKAGAMI S. 1976. - On the Permian Bryozoa from the northern part of Sainbeyli, Central Turkey. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 103: 398 - 405.
- BASSLER R. S. 1929. - The Permian Bryozoa of Timor. Palaontologie von Timor 16 (28): 37 - 90, 23 pls.