Published December 31, 2006 | Version v1
Taxonomic treatment Open

Fistulipora timorensis Bassler 1929

  • 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 timorensis Bassler, 1929 (Fig. 2F, H, K, M; Table 2)

Fistulipora timorensis Bassler, 1929: 44, pl. 3, figs 4- 9. — Sakagami 1968b: 50, 51, pl. 6, figs 1-3; 1999: 81, 82, pl. 18, figs 1-3. — Morozova 1970a: 63, 64, pl. 2, fig. 1. — Kiseleva 1982: 53, 54, pl. 1, fig. 1. — Xia 1991: 188, 189, pl. 7, figs 6, 7.

Fistulipora cf. timorensis – Sakagami 1961: 16, pl. 1, figs 1-8; 1995: 242, fig. 9-3, 4. — Sakagami in Yanagida 1988: pl. 12, figs 1-3.

MATERIAL EXAMINED. — 4-8-1, 4-8-5, 4-8-6, 5-2, 10-2-1, 10-2-2, 10-2-3, 10-2-4, 10-2-6, 10-2-7, 23-4, 25-10-3.

OCCURRENCE. — Lakaftari: central Iran, Jamal Formation, Middle Permian. Fistulipora timorensis is apparently widely distributed in Lower to Upper Permian rocks of the Tethys region. It was reported from Timor (Bassler 1929), Thailand (Sakagami 1968b; Sakagami in Yanagida 1988), Khabarovsk region (Morozova 1970a), Primorye (Kiseleva 1982), Xizang, China (Xia 1991), and Bolivia (Sakagami 1995).

DESCRIPTION

Encrusting colonies, 0.9-1.5 mm thick. Autozooecia bud from a 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 (usually developed at their bases), abundant in longer autozooecia, complete, thin, deflected orally.Vesicles polygonal in tangential section, arranged in 1-3 rows between autozooecia (commonly two rows), having flat or slightly concave roofs, spaced 8-9 per 1 mm of the colony thickness. Maculae consisting of vesicular skeleton, rounded, 0.96-1.50 mm in diameter, spaced regularly on the colony surface. Lunaria of adjacent apertures directed towards maculae centre; autozooecia arranged radially around central point of a macula (Fig. 2M).

COMPARISON

Fistulipora timorensis differs from F.monticulosa in having larger apertures (0.35 vs.0.29 mm in F. monticulosa averagely), as well as in the absence of tubular colonies. Fistulipora sp.described below has larger apertures (0.46 vs. 0.35 mm in F.timorensis averagely). F. timorensis is also similar to F. siamensis Sakagami, 1999, from the Middle Permian of Thailand. The two species may be conspecific, because the only difference with F.siamensis mentioned by Sakagami (1999) is the abundant basal diaphragms.The number of basal diaphragms can vary greatly in Palaeozoic stenolaemate bryozoans.

Notes

Published as part of Ernst, Andrej, Senowbari-Daryan, Baba & Hamedani, Ali, 2006, Middle Permian Bryozoa from the Lakaftari area, northeast of Esfahan (central Iran), pp. 543-590 in Geodiversitas 28 (4) on page 548, DOI: 10.5281/zenodo.4665450

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Linked records

Additional details

Biodiversity

References

  • BASSLER R. S. 1929. - The Permian Bryozoa of Timor. Palaontologie von Timor 16 (28): 37 - 90, 23 pls.
  • SAKAGAMI S. 1968 b. - Permian Bryozoa from Khao Phrik, near Rat Buri, Thailand. Contributions to the geology and palaeontology of Southeast Asia. 43. Geology and Palaeontology of Southeast Asia 4: 45 - 66.
  • MOROZOVA I. P. 1970 a. - [Late Permian Bryozoa]. Trudy Paleontologicheskogo Instituta 122: 1 - 347 (in Russian).
  • KISELEVA A. B. 1982. - Late Permian Bryozoans of the South Primorye. Nauka, Moscow, 128 p.
  • XIA F. 1991. - [Early-Middle Permian bryozoans from Rutog region, Xizan (Tibet)], in SUN D., XU J. et al. (eds), [Papers for Scientific Co-Expedition of the Nanjing Institute of Geology and Palaeontology, Academia Sinica and Regional Geological Survey Team, Geological Bureau of Xizang Stratigraphy and Palaeontology of Permian, Jurassic and Cretaceous of the Rutog Region, Xizan (Tibet)]. Nanjing University Press, Nanjing: 165 - 210 (in Chinese, with English abstract).
  • SAKAGAMI S. 1961. - Japanese Permian Bryozoa. Paleontological Society of Japan, Special Papers 7: 1 - 58.
  • YANAGIDA J. (& A RESEARCH GROUP 1988). - Biostratigraphic Study of Paleozoic and Mesozoic Groups in Central and Northern Thailand. An Interim Report. Department of Geology, Faculty of Sciences, Kyushu University, Kyushu, 46 p.
  • SAKAGAMI S. 1995. - Upper Paleozoic bryozoans from the Lake Titicaca region, Bolivia. Part 1. Introductory remarks, stratigraphy and systematic paleontology. Part 2. Systematic paleontology. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 180: 226 - 281.
  • SAKAGAMI S. 1999. - Permian bryozoans from some localities in the Khao Hin Kling Area near Phetchbun, north-central Thailand. Bulletin of the Kitakyushi Museum of Natural History 18: 77 - 103.