Stylosmilia ” dresnayi Beauvais, 1986, 1848

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1252-1253

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
status

 

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

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Stylinidae

Loc

Stylosmilia ” dresnayi Beauvais, 1986

Vasseur, Raphaël & Lathuilière, Bernard 2021
2021
Loc

Stylosmilia? dresnayi

VASSEUR R. 2018: 338
2018
Loc

Stylosmilia dresnayi

BEAUVAIS L. 1986: 41
1986
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