Stylosmilia ” dresnayi Beauvais, 1986, 1848
publication ID |
https://doi.org/ 10.5252/geodiversitas2021v43a22 |
publication LSID |
urn:lsid:zoobank.org:pub:6D1643AD-66A5-4678-9397-CE08E610D641 |
persistent identifier |
https://treatment.plazi.org/id/03A287A2-4800-3176-99FA-640DFF3BF83B |
treatment provided by |
Felipe |
scientific name |
Stylosmilia ” dresnayi Beauvais, 1986 |
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“ Stylosmilia ” dresnayi Beauvais, 1986 View in CoL
( Fig. 45 View FIG )
Stylosmilia dresnayi Beauvais, 1986: 41 View in CoL , pl. 8, fig. 3.
Stylosmilia? dresnayi View in CoL – Vasseur 2018: 338-339, fig. 3.93.
TYPE MATERIAL. — Holotype: MNHN.F.R11623, Beauvais 1986: 41, pl. 8, fig. 3. TYPE HORIZON. — Pliensbachian . TYPE LOCALITY. — Jebel Bou Dahar , Morocco. STUDIED SAMPLES. — Two specimens: holotype MNHN.F.R11623; CPUN Gu 1005E2. GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of Jebel Bou Dahar and Guigou Plateau , Morocco.
DESCRIPTION
Phaceloid colony with cylindrical corallites multiplying by extracalicular budding. Radial elements are wavy, compact costosepta apparently free and organized in two distinct size-orders. External lateral faces of the corallites are ornamented with vertical striation made by the naked costae. Styliform columella according to Beauvais (1986) but that does not appear clearly in the sample. Endotheca made of rare dissepiments and tabulae that periodically divide the lumen vertically. Wall present, probably septothecal. No synapticulae observed.
Calicular diameter: 1.5 to 2.5 mm – Number of septa: 32 to 36 – Septal density: 3 to 4 for 0.5 mm.
SIMILARITIES AND DIFFERENCES
Differs from the other taxa of the genus Stylosmilia Milne Edwards, 1848 by the lack of auriculae. With the doubt concerning the presence of a styliform columella we choose to maintain the species under the genus Stylosmilia (with quotation marks) even if the genus Proaplophyllia Roniewicz, 1976 would be more appropriate in case of lack of columella.
MNHN |
France, Paris, Museum National d'Histoire Naturelle |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Stylosmilia ” dresnayi Beauvais, 1986
Vasseur, Raphaël & Lathuilière, Bernard 2021 |
Stylosmilia? dresnayi
VASSEUR R. 2018: 338 |
Stylosmilia dresnayi
BEAUVAIS L. 1986: 41 |