Montlivaltia subcaryophyllata Alloiteau, 1957
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/03A287A2-481D-316C-9A94-6628FBABFB80 |
treatment provided by |
Felipe |
scientific name |
Montlivaltia subcaryophyllata Alloiteau, 1957 |
status |
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Montlivaltia subcaryophyllata Alloiteau, 1957
( Fig. 64 View FIG )
Montlivaltia subcaryophyllata Alloiteau, 1957: 93 , pl. 5, fig. 4. — Vasseur 2018: 257-258, fig. 3.62.
Epismilia ? caryophyllata Fromentel & Ferry, 1865: 54 , pl. 15, fig. 2.
TYPE MATERIAL. — Holotype MNHN.F. M03506 View Materials (Fromentel coll.), Fromentel & Ferry 1865: 54, pl. 15, fig. 2. TYPE HORIZON. — Pliensbachian . TYPE LOCALITY. — May-sur-Orne, France. STUDIED SAMPLE. — Holotype MNHN.F. M03506 View Materials . GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of May-sur-Orne ( Calvados , France).
DESCRIPTION
Solitary, patellate corallum. Radial elements are exsert costosepta organized in 3 distinct size orders and apparently 5 distinct ontogenetic cycles (6+6+12+24+48 septa). They are straight, free, of montlivaltid structure. Endotheca made of rare peripheral dissepiments. An epitheca s.l. wraps the basis of the corallum.
Calicular diameter: 14.4 mm – Number of septa: 96 by extrapolation – Septal density: 5 per 2 mm.
SIMILARITIES AND DIFFERENCES
The differences with Montlivaltia sp. described from Moroccan Toarcian ( Vasseur 2018) is difficult to confirm because of the great intraspecific variability of the latter species and the uniqueness of the Pliensbachian specimen from Calvados. However, the specimen described herein shows quite higher septal densities and a more regular septal apparatus than the specimens from the Toarcian.
MNHN |
France, Paris, Museum National d'Histoire Naturelle |
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.
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Montlivaltia subcaryophyllata Alloiteau, 1957
Vasseur, Raphaël & Lathuilière, Bernard 2021 |
Montlivaltia subcaryophyllata
VASSEUR R. 2018: 257 |
ALLOITEAU J. 1957: 93 |
Epismilia
FROMENTEL E. DE & FERRY H. DE 1865: 54 |