Spongiocoenia liasica ( Turnšek & Geyer, 1975 ) Vasseur & Lathuilière, 2021
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/41CED0DF-4AD3-4F29-BBFA-55A99C480CA3 |
taxon LSID |
lsid:zoobank.org:act:41CED0DF-4AD3-4F29-BBFA-55A99C480CA3 |
treatment provided by |
Felipe |
scientific name |
Spongiocoenia liasica ( Turnšek & Geyer, 1975 ) |
status |
comb. nov. |
Spongiocoenia liasica ( Turnšek & Geyer, 1975) View in CoL , n. comb.
( Fig. 34 View FIG )
Coccophyllum liasicum Turnšek & Geyer View in CoL in Turnšek, Seyfried & Geyer,1975: 21, taf. 19.
pars Plagiosolenacis laffittei – Alloiteau 1957: 386, non pl. 12, fig. 2-3, MNHN.F. J08981 View Materials (some of the paratypes).
Nov. gen. 1 sp. 1 – Vasseur 2018: 263-264, fig. 3.64.
TYPE MATERIAL. — Coccophyllum liasicum , no. 55 from collection Seyfried housed in Departamento de Paleontología of the University of Granada ( UG), Spain. STUDIED SAMPLES. — Seven specimens: CPUN DA2905E1-5, CPUN DA3105E2-8, CPUN DA3105E3-3, CPUN AM16178-2, CPUN AM16178-11, CPUN AM16188-7, CPUNAM16188 -31. TYPE HORIZON. — Upper Sinemurian- Lower Pliensbachian . TYPE LOCALITY. — Zarcilla de Ramos (Murcia, Spain). GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian and lowerToarcian (pre-TOAE, Polymorphum zone) of Dades Valley-Jebel Toksine and Pliensbachian of Amellagou ( High Atlas of Morocco).
DESCRIPTION
Small massive plocoid colony (8 to 30 mm) with well calibrated circular calices separated by a wide porous coenosteum. The free, straight and smooth septa sometimes look like small spines on the inner edge of the calice. During their growth, calices tend to modify their trajectory, giving a wavy aspect to the lumen in longitudinal sections. No columella nor endotheca. Wall porous, synapticulothecal. The budding seems to be extracalicular.
Calicular diameter: 0.4 to 1 mm – Distance between calices centers: 1.5 to 3 mm – Number of septa: 6 to 8.
SIMILARITIES AND DIFFERENCES
Differs from Plagiosolenacis laffittei Alloiteau, 1957 and Paleomillepora liasica Gabilly & Lafuste, 1957 by the presence of welldeveloped septa.Differs also from Etallonasteria Roniewicz,1987 and Alveopora Blainville, 1830 by its smaller and more spaced calices and by the total lack of endothecal structures.In addition, the species under the genus Alveopora generally present a welldeveloped columella and teeth along the inner edges of septa.
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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Genus |
Spongiocoenia liasica ( Turnšek & Geyer, 1975 )
Vasseur, Raphaël & Lathuilière, Bernard 2021 |
Coccophyllum liasicum Turnšek & Geyer
TURNsEK D. & SEYFRIED H. & GEYER O. F. 1975: 21 |
Plagiosolenacis laffittei
ALLOITEAU J. 1957: 386 |