Rhombopora corticata Moore, 1929

Ernst, Andrej & Minwegen, Elke, 2006, Late Carboniferous bryozoans from La Hermida, Spain, Acta Palaeontologica Polonica 51 (3), pp. 569-588 : 579-581

publication ID	https://doi.org/10.5281/zenodo.13652021
DOI	https://doi.org/10.5281/zenodo.13652053
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scientific name	Rhombopora corticata Moore, 1929
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Rhombopora corticata Moore, 1929 View in CoL

Fig. 6B, C; Table 9.

1929 Rhombopora corticata View in CoL sp. nov.; Moore 1929: 137, pl. 17: 3, 4; text−fig. 4i, j.

1995 Rhombopora corticata Moore, 1929 View in CoL ; Sakagami 1995: 262, figs. 1: 7, 8; 2: 1, 2.

2005 Rhombopora corticata Moore, 1929 View in CoL ; Ernst et al. 2005: 307–309, pl. 2: 2, pl. 3: 6.

Material.— SMF 1741, 1756 (and three additional fragments).

Description.—Ramose branched colonies, 1.41–2.03 mm in diameter. Autozooecial apertures oval, arranged in regular diagonal rows, spaced 3 in 2 mm distance longitudinally and 6 in the same distance diagonally. Paurostyles 0.030 –0.054 mm in diameter, arranged in a single row between autozooecia building a regular rhombic pattern. Single large acanthostyles positioned in interspaces between apertures at angles of hexagons of smaller paurostyles, having pale sheaths and dark cores, 0.06–0.08 mm in diameter.

Discussion.— Rhombopora corticata Moore, 1929 is similar to R. lepidondroides Meek, 1872 . It differs from the latter species in having larger colonies with a wider exozone as well as larger and more widely spaced apertures.

Stratigraphic and geographic range.—Picos de Europa Formation, Moscovian, Upper Carboniferous; La Hermida, Spain. San Emiliano Formation, Upper Carboniferous (Westphalian B/C); Spain. Upper Carboniferous Graham Formation (Pennsylvanian) of Texas, USA. Pseudoschwagerina Zone of Bolivia.

References

Ernst, A. 2005. Upper Palaeozoic Bryozoa of the Carnic Alps (a review). In: E. R Woss (ed.), Moostiere (Bryozoa), 69 - 74. Denisia, Biologiezentrum der Oberosterreichischen Landesmuseen, Linz.

Meek, F. B. 1872. Report on the paleontology of eastern Nebraska. In: F. V. Hayden (ed.), Final Report on the United State Geological Survey of Nebraska and Portions of Adjacent Territories 81 - 239. U. S. Government Printing Office, Washington.

Moore, R. C. 1929. A bryozoan faunule from the Upper Graham Formation, Pennsylvanian, of North Central Texas. Journal of Paleontology 3: 1 - 27, 121 - 156.

Sakagami, S. 1964. Bryozoa of Akiyoshi; part 2, Lower Carboniferous Bryozoa from the Uzura quarry. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 56: 295 - 308.

Sakagami, S. 1995. Upper Paleozoic bryozoans from the Lake Titicaca region, Bolivia. Part 2. Systematic paleontology. Transactions and Proceedings of the Palaeontological Society of Japan new series 180: 261 - 281.