Acupipora Gorjunova and Weiss 2012
Description
Genus ACUPIPORA Gorjunova and Weiss, 2012
Type species. Polypora subborealis Schulga-Nesterenko, 1951 (= Polypora krasnopolskyi Schulga-Nesterenko, 1951), subsequently designated by Gorjunova and Weiss (2012). Pennsylvanian, Gzhelian; Russia.
Diagnosis. Reticulate colonies of different shapes built by straight or slightly undulating, bifurcating branches, joined at regular intervals by straight and short dissepiments without autozooecia. Autozooecia arranged in 3–5 alternating rows on branches, and 2–3 after bifurcation. Autozooecial chambers polygonal tubular, proximally recumbent on budding plate, with long axis directed toward obverse surface; rhomboidal, hexagonal to tetragonal in tangential sections through endozone, superior hemisepta present, blunt; inferior hemisepta present, positioned at the base of the autozooecia chamber in its middle-distal part. Vestibules moderately long. Diaphragms absent. Autozooecial apertures rounded. Microacanthostyles and nodes usually present on obverse surface. Heterozooecia in form of isolated zooecia with enlarged endozonal chambers present. Nanozooecia (autozooecia sealed by perforated terminal diaphragm) present (modified after Gorunova and Weiss, 2012).
Remarks. Acupipora Gorunova and Weiss, 2012, differs from the genus Polyporella Simpson, 1895, in the shape of autozooecia (rhomboidal, hexagonal to tetragonal vs. hexagonal to tetragonal-pentagonal in Polyporella). Acupipora differs from Polypora M’Coy, 1844 in shape of autozooecia (rhomboidal, hexagonal to tetragonal vs. hexagonal in Polypora) and in presence of inferior hemisepta.
Occurrence. Pennsylvanian, Gzhelian; Russia. Pennsylvanian, Desmoinesian (late Moscovian); Mexico. Graham Formation, Pennsylvanian (Virgilian); Texas, USA.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Fenestellidae
- Genus
- Acupipora
- Kingdom
- Animalia
- Order
- Fenestrida
- Phylum
- Bryozoa
- Scientific name authorship
- Gorjunova and Weiss
- Taxon rank
- genus
- Taxonomic concept label
- Acupipora and, 2012 sec. Ernst, Claussen, Seuss & Jackson, 2022
References
- Gorjunova, R. V. and Weiss, O. B. 2012. A new genus Acupipora gen. nov. from the Upper Carboniferous of the East European Platform and problem of classification of bryozoans of the Order Fenestellida. Paleontological Journal, 46 (1): 16 - 28. https: // doi. org / 10.1134 / S 0031030112010054
- Schulga-Nesterenko, M. I. 1951. Carboniferous Fenestellida of the Russian Platform. Trudy Paleontologicheskogo Instituta, 32: 1 - 157. (In Russian)
- Simpson, G. B. 1895. A discussion of the different genera of the Fenestellidae. Thirteenth Annual Report of the State Geologist of New York for the year 1893: 687 - 727.
- M'Coy, F. 1844. A synopsis of the characters of the Carboniferous Limestone fossils of Ireland. Dublin University Press, Dublin. https: // doi. org / 10.5962 / bhl. title. 11559