Enallhelia octasepta, Löser & Werner & Darga, 2023

Löser, Hannes, Werner, Winfried & Darga, Robert, 2023, Middle Cenomanian coral fauna from the Roßsteinalmen (Northern Calcareous Alps, Bavaria, Southern Germany) – a revised and extended version, Zitteliana 97, pp. 89-147 : 89-147

publication ID

https://doi.org/ 10.3897/zitteliana.97.113796

publication LSID

lsid:zoobank.org:pub:D4564419-3213-4D38-96BB-E7CFE157E0F8

DOI

https://doi.org/10.5281/zenodo.13307709

persistent identifier

https://treatment.plazi.org/id/6D68644E-A87C-43A7-9995-91D5DB8D8284

taxon LSID

lsid:zoobank.org:act:6D68644E-A87C-43A7-9995-91D5DB8D8284

treatment provided by

Zitteliana by Pensoft

scientific name

Enallhelia octasepta
status

sp. nov.

Enallhelia octasepta sp. nov.

Plate 12: figs 7, 8 View Plate 12

Derivatio nominis.

The new species has a remarkable octameral symmetry of septa.

Holotype.

LFU 8336 SG 015215 # 1 with one thin section .

Locus typicus.

Germany, Bavaria, community of Lenggries, Roßsteinalmen.

Stratum typicum.

Cretaceous, middle Cenomanian, Branderfleck Fm.

Paratype.

LFU 8336 SG 015215 # 2 with one thin section.

Material.

Holotype and paratype.

Diagnosis.

Enallhelia with an octameral septal symmetry, two septal cycles, a small corallite diameter of 1.1–1.2 mm and a larger corallite diameter of 1.4 - 1.7 mm.

Description.

Plocoid colony growing in the form of branches which show corallites only on one face. Corallite outline slightly elliptical. Symmetry of septa radial and regularly octameral, two septal cycles. Septa of the first cycle are thicker and longer than septa of the second cycle. Septa compact, with occasional auriculae at their inner margins. Pali absent. Costae present, non - confluent. Columella styliform. Endotheca consists of thin tabulae. Wall compact, probably septothecal. Coenosteum broad.

Remarks.

The genus has, to date, a stratigraphical range from the Oxfordian to the lower Albian. It is more common in the Upper Jurassic than the Lower Cretaceous. The present two specimens constitute the youngest occurrence of the genus.

Relationship.

Enallhelia has generally a hexameral septal symmetry. There are no formally established species with an octameral septal symmetry as in the present material.

Dimensions.

( LFU 8336 SG 015215 # 1).

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Stylinidae

Genus

Enallhelia