Podosmilia horologium, Vasseur & Lathuilière, 2021

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1260-1263

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/9698B647-E3F3-493E-AFB9-33F7DFE0F9AB

taxon LSID

lsid:zoobank.org:act:9698B647-E3F3-493E-AFB9-33F7DFE0F9AB

treatment provided by

Felipe

scientific name

Podosmilia horologium
status

n. gen., n. sp.

Podosmilia horologium View in CoL n. gen., n. sp.

( Fig. 51 View FIG )

urn:lsid:zoobank.org:act:9698B647-E3F3-493E-AFB9-33F7DFE0F9AB

Archaeosmilia View in CoL ? sp. 1 – Beauvais 1986: 13, pl. 1, fig. 1, pl. 15, fig. 4 and txt-fig. 5.

Epismiliopsis sp. – Beauvais 1986: 18, pl. 2, fig. 5c, 5d.

Nov. gen. 3 sp. 1 – Vasseur 2018: 267-268, fig. 3.66.

TYPE MATERIAL. — Holotype no. AM16177-3.

STUDIED SAMPLES. — 16 specimens: CPUN 1703 A2- 1,2210E 2,2303A1- 1, 2303A1-9, AM16160-4, AM16177-3, MA0504E7-15, PFPyr6-2, PFPyr6-3, PFPyr6-4, PFPyr6-5, PFPyr6-6, PFPyr6-12, PFPyr6-13, PFPyr6-14, PFPyr6-15 (collections CPUN), MNHN.F.R11597.

ETYMOLOGY. — From latin, horologium (clock) refers to the very regular hexameral symmetry of the septal apparatus at the distal edge of the corallum suggesting a time clock.

TYPE HORIZON. — Pliensbachian .

TYPE LOCALITY. — Amellagou , 31°57’21”N, 5°2’16”W, Morocco.

GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of Morocco ( Beni Tadjit , Koudiat Ech Chehem and Amellagou ) and Pyrenees (close to the Estivère pass).

GoogleMaps

DESCRIPTION

Solitary, conical corallum, circular to elliptical in outline. Septal apparatus very regular in most of the specimens, made of free, compact, straight septa organized in 4 or 5 size orders corresponding to the successive ontogenic cycles of a strictly hexameral development. A superimposed bilateral symmetry appears in depth. In fact, S1 and S2 septa produce podoid bulges at their inner edges and 4 S1 come close to the axis of the elongated lumen, which reveals a bilateral symmetry defined in transverse section by the prolongation of the 2 other S1. The orientation of the podoid tips of the S1 and S2 septa follow this bilateral symmetry, producing a very characteristic pattern.No columella. Endotheca made of rare vesicular dissepiments. Synapticulae absent. Wall parathecal. An epitheca s. l. wrap the corallum.

Calicular diameter: 11 to 35 mm – Number of septa: 64 (6 × 8) to 96 (6 × 16).

REMARKS

We include under this taxon the specimen MNHN.F.R11597 identified and figured in Beauvais 1986 as Epismiliopsis sp.

MNHN

France, Paris, Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Stylophyllidae

Genus

Podosmilia

Loc

Podosmilia horologium

Vasseur, Raphaël & Lathuilière, Bernard 2021
2021
Loc

Vasseur 2018: 267-268
2018
Loc

Archaeosmilia

BEAUVAIS L. 1986: 13
1986
Loc

Epismiliopsis sp.

BEAUVAIS L. 1986: 18
1986
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