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Rhabdinopora flabelliformis socialis
Taxonomy
Graptopora (Fenestella) sociale was named by Salter (1858).
It was recombined as Dictyonema sociale by Salter (1865); it was recombined as Dictyonema flabelliformis sociale by Bulman (1927); it was recombined as Dictyonema flabelliforme sociale by Bulman (1954); it was recombined as Rhabdinopora flabelliformis socialis by Wang and Servais (2015); it was recombined as Rhabdinopora socialis by Wagner (2020).
It was recombined as Dictyonema sociale by Salter (1865); it was recombined as Dictyonema flabelliformis sociale by Bulman (1927); it was recombined as Dictyonema flabelliforme sociale by Bulman (1954); it was recombined as Rhabdinopora flabelliformis socialis by Wang and Servais (2015); it was recombined as Rhabdinopora socialis by Wagner (2020).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Graptopora (Fenestella) sociale Salter p. 65 |
| 1865 | Dictyonema sociale Salter p. 331 figs. 1a-c |
| 1927 | Dictyonema flabelliformis sociale Bulman pp. 26- 28 figs. pl. 2, figs 1, 2 |
| 1954 | Dictyonema flabelliforme sociale Bulman pp. 27- 29 figs. pl. 1, figs 1, 2; text-fig. 10a |
| 2015 | Rhabdinopora flabelliformis socialis Wang and Servais p. 75 figs. Fig. 5 F; Fig. 6 A, E |
| 2020 | Rhabdinopora socialis Wagner |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Rhabdinopora flabelliformis socialis Salter 1858
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W.-H. Wang and T. Servais 2015 | The rhabdosome is broadly to narrowly conical in outline. The divergence angle near the apex is around 60-105°. The rhabdosome is about 33.1-76 mm in length and around 18-33.6 mm in width. The ratio between length and width is around 2. Stipes branch dichotomously, producing 17 stipes at 10 mm from the sicula and more than 35 at the distal limit. Stipe dorsal width ranges from 0.3 to 0.4 mm and stipes are generally straight to moderate in sinuosity. The mesh pattern is characterised by a quite regular distribution of stipes and dissepiments, the stipes space closely and parallel to each other with a number of 10-13 in 10 mm. The dissepiments are extremely densely spaced as they number 15-20 in 10 mm. The dissepiments are slender and delicate, ca. 0.1 mm wide and 0.7-0.8 mm long, mostly straight, and perpendicular to the stipes. The thickness of the dissepiments seems to be regular. The dissepiments appear darker in comparison with adjacent stipes which may reflect a primary structural/compositional differentiation. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: base of the Cressagian to the top of the Pakerort or 486.40000 to 483.80000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pakerort | Estonia | Rhabdinopora flabelliformis (204475 204476) | |
| Ordovician | Norway (Naersnes) | Dictyonema sociale (156952 156953 156954 156956 156957) | |
| Cressagian | United Kingdom (England) | Dictyonema sociale (3711) | |
| Tremadoc | Argentina (La Rioja) | Rhabdinopora flabelliformis (42519) |