Stylophyllopsis fritillus (Fromentel & Ferry, 1866)

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1267

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/03A287A2-4811-3160-9AE0-628DFB05FD10

treatment provided by

Felipe

scientific name

Stylophyllopsis fritillus (Fromentel & Ferry, 1866)
status

 

Stylophyllopsis fritillus (Fromentel & Ferry, 1866) View in CoL

( Fig. 55 View FIG )

Montlivaltia fritillus Fromentel & Ferry, 1866: 143 , pl. 24, fig. 1, 1a.

Montlivaltia laxa Fromentel & Ferry, 1867: 151 , pl. 35, fig. 3.

Plesiophyllum laxa – Alloiteau 1952: 605, fig. 51; 1957: 112, pl. 5, fig. 10, fig. 70.

Axosmilia fritillus – Alloiteau 1952: 642, fig. 98.

Axosmiliopsis fritillus – Alloiteau 1957: 113, pl. 5, fig. 18, fig. 72.

Plesiophyllum ferry [sic] Alloiteau, 1957: 112, fig. 71.

Plesiophyllum fritillus – Vasseur 2018: 292-293, fig. 3.76.

TYPE MATERIAL. — Holotype MNHN.F. M03502 View Materials , Fromentel & Ferry 1866: 143, pl. 24, fig. 1a.

ETYMOLOGY. — In latin fritillus designates a cylindro-conical cup used for dice roll. It is a name and not an adjective. This is the reason why we do not make an agreement between fritillus and the neutral gender of the genus name in the new combination.

TYPE HORIZON. — Pliensbachian . TYPE LOCALITY. — May-sur-Orne, France. STUDIED SAMPLES. — Three specimens: holotypeMNHN.F. M03502 View Materials ; MNHN.F. M03520 View Materials , CPUN AM16179-6. GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of May-sur-Orne ( Calvados , France).

DESCRIPTION

Solitary subcylindrical coral. Calice subcircular with moderately large and deep, eccentric fossa. Radial elements are slightly exsert, compact, free, straight, slightly curved or even bent (costo-?) septa. Septa show regular variation of their thickness from the center to the periphery. Distal edge poorly ornamented by some regular wide festoons corresponding to the variations in thickness. Lateral faces show the subvertical orientation of these thicker and thinner bands. Hexameral symmetry not very regular. Bilateral symmetry visible with curvature of septa and eccentricity. Endotheca with tabuloid thick dissepiments. Wall of unknown nature but peripheral in position. Epitheca s.l. present.

Calicular diameter: 14 to 20 mm – Number of septa: approximately 30 to 40? – Septal density: 2 per 2 mm.

REMARK

Small rows of granules evoked in the fig. 70 of Alloiteau (1957) were not seen and the angle of thick and thin bands with vertical is obviously exaggerated.

MNHN

France, Paris, Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Stylophyllidae

Genus

Stylophyllopsis

Loc

Stylophyllopsis fritillus (Fromentel & Ferry, 1866)

Vasseur, Raphaël & Lathuilière, Bernard 2021
2021
Loc

Plesiophyllum fritillus

VASSEUR R. 2018: 292
2018
Loc

Axosmiliopsis fritillus

ALLOITEAU J. 1957: 113
1957
Loc

Plesiophyllum

ALLOITEAU J. 1957: 112
1957
Loc

Plesiophyllum laxa

ALLOITEAU J. 1952: 605
1952
Loc

Axosmilia fritillus

ALLOITEAU J. 1952: 642
1952
Loc

Montlivaltia laxa

Fromentel & Ferry 1867: 151
1867
Loc

Montlivaltia fritillus

Fromentel & Ferry 1866: 143
1866
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