Coryphyllia bicuneiformis, Vasseur & Lathuilière, 2021

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1211

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/602A63AE-18E5-4E44-89D2-7754DE3EC605

taxon LSID

lsid:zoobank.org:act:602A63AE-18E5-4E44-89D2-7754DE3EC605

treatment provided by

Felipe

scientific name

Coryphyllia bicuneiformis
status

sp. nov.

Coryphyllia bicuneiformis n. sp.

( Fig. 14 View FIG )

urn:lsid:zoobank.org:act:602A63AE-18E5-4E44-89D2-7754DE3EC605

Coryphyllia sp. 2 – Vasseur 2018: 154-155, fig. 3.20.

TYPE MATERIAL. — Holotype: CPUN CDAm4; paratypes: CPUN AM16162-1, CPUN AM16184-3, CPUN AM16188-12, CPUN CDAm3,15, CPUN MA0504E7-12. STUDIED SAMPLES. — Seven specimens: CPUN AM16162-1, CPUN AM16184-3, CPUN AM16188-12, CPUN CDAm3, CDAm4, CDAm15, CPUN MA0504E7-12. ETYMOLOGY. — Refers to the strongly bicuneiform aspect of major septa. TYPE HORIZON. — Pliensbachian . TYPE LOCALITY. — Amellagou, High Atlas of Morocco. GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of Amellagou and Koudiat Ech Chehem ( Morocco).

DESCRIPTION

Solitary coral cylindrical to conical, elliptical in outline. Radial elements are straight or curved, free, compact, bicu- neiform costosepta with often rhopaloid inner edges. The septal apparatus is quite regular, organized in 3 distinct size orders. Lateral faces are smooth or finely granulated and there are some vestiges of a wavy mid-septal line. Endotheca made of numerous vesicular dissepiments distributed in all the interseptal space. No columella but a constricted, elongated fossa that defines a bilateral symmetry superimposed to the radial arrangement. No epitheca observed, possibly eroded.

Calicular diameter: 9 to 41 mm – Number of septa: 44 to 70 – Septal density: 3-4 per 2 mm.

SIMILARITIES AND DIFFERENCES

Differs from Coryphyllia regularis by the apparent lack of epitheca, a reduced average diameter, more bicuneiform septa and a more elongated calice defining a stronger bilateral symmetry. Coryphyllia capillaria n. sp. described below shows higher values of septal densities and number of septa and also a septal apparatus made of less bicuneiform septa in which it is more difficult to distinguish the different size orders of septa.

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Reimaniphylliidae

Genus

Coryphyllia

Loc

Coryphyllia bicuneiformis

Vasseur, Raphaël & Lathuilière, Bernard 2021
2021
Loc

Coryphyllia sp. 2

VASSEUR R. 2018: 154
2018
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