Marcelohelia, Löser, 2013
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publication ID |
https://doi.org/ 10.5252/g2013n4a1 |
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DOI |
https://doi.org/10.5281/zenodo.5464729 |
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persistent identifier |
https://treatment.plazi.org/id/F537878C-C476-376D-FCE5-BB73FE83FA28 |
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treatment provided by |
Marcus |
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scientific name |
Marcelohelia |
| status |
gen. nov. |
Genus Marcelohelia View in CoL n. gen.
TYPE SPECIES. — Marcelohelia caribbiensis n. sp.
DIAGNOSIS. — Phaceloid colony. Radial elements composed of large trabeculae, subregularly perforated, with a regular radial symmetry.
ETYMOLOGY. — After Marcel Beauvais, eminent specialist of Late Cretaceous corals, who established the family Felixaraeidae .
RANGE. — Maastrichtian.
DISTRIBUTION. — Western Atlantic.
DESCRIPTION
Phaceloid colony with large calices. Radial elements subregularly perforated. Microstructure of large trabeculae. Radial elements in cross-section externally thick, becoming thinner towards the centre. Symmetry of radial elements radial and regularly hexameral. Cycles of radial elements regular. Septal cycles differ in length and thickness.Radial elements occasionally connected to each other, upper border with large regular granules. Septal lateral face with thick granulae, inner margin smooth. Some radial elements may be attached to the columella. Costae present. Synapticulae present, abundant. Columella poorly defined, probably lamellar.Endotheca absent. Wall absent. Epitheca present. Budding intracalicinal, marginal.
COMPARISON
The new genus compares well to Felixaraea and Pseudofavia , but differs from these genera and all other genera of the family by its phaceloid growth form.
SPECIES
The type species and a species that is reported here in open nomenclature.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.