Scleractinia name details
Plesiostylina Alloiteau, 1958 †
1581437 (urn:lsid:marinespecies.org:taxname:1581437)
unaccepted > junior subjective synonym
Genus
Plesiostylina hourcqi Alloiteau, 1958 † (type by monotypy)
- Species Plesiostylina hourcqi Alloiteau, 1958 † (uncertain > unassessed)
marine, fresh, terrestrial
fossil only
Alloiteau J. (1958). Monographie des madreporaires fossiles de Madagascar. <em>Annales Géologiques de Madagascar.</em> 25: 1-218, pls 1-38. [details]
Description (From the holotype). Massive plocoid corallum with circular to subcircular calices. Costae confluent to subconfluent,...
Description (From the holotype). Massive plocoid corallum with circular to subcircular calices. Costae confluent to subconfluent, moderately developed. Extracalicular increase. Radial elements compact, free, straight, unequal in length and thickness. Inner edge auriculate, lateral faces apparently smooth (but the section is not good enough). Microstructure unknown. Radial octameral symmetry, no bilateral symmetry. Endotheca not observed, columella styliform and strong, synapticulae absent, wall parathecal to paraseptothecal. [details]
Hoeksema, B. W.; Cairns, S. (2025). World List of Scleractinia. Plesiostylina Alloiteau, 1958 †. Accessed at: https://www.marinespecies.org/scleractinia/aphia.php?p=taxdetails&id=1581437 on 2025-06-05
Date
action
by
original description
Alloiteau J. (1958). Monographie des madreporaires fossiles de Madagascar. <em>Annales Géologiques de Madagascar.</em> 25: 1-218, pls 1-38. [details]
basis of record Cairns, S.D., R. Baron-Szabo, A.F. Budd, B. Lathuilière, E. Roniewicz, J. Stolarski & K.G. Johnson. (2010). Corallosphere. , available online at http://www.corallosphere.org [details]
basis of record Cairns, S.D., R. Baron-Szabo, A.F. Budd, B. Lathuilière, E. Roniewicz, J. Stolarski & K.G. Johnson. (2010). Corallosphere. , available online at http://www.corallosphere.org [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description (From the holotype). Massive plocoid corallum with circular to subcircular calices. Costae confluent to subconfluent, moderately developed. Extracalicular increase. Radial elements compact, free, straight, unequal in length and thickness. Inner edge auriculate, lateral faces apparently smooth (but the section is not good enough). Microstructure unknown. Radial octameral symmetry, no bilateral symmetry. Endotheca not observed, columella styliform and strong, synapticulae absent, wall parathecal to paraseptothecal. [details]Remark Two nominal species. The type-species is known by only one specimen. P. etalloni was placed provisionally in this genus (Beauvais, 1964). Alloiteau distinguished Plesiostylina from Stylina on the basis of its parathecal thin wall regularly in zigzag, its endotheca composed of a small number of subhorizontal dissepiments, its subcylindrical strong columella and the low number of radial elements. We don’t consider these characters valid and distinctive. [details]