Stylophyllopsis zitteli Frech, 1890
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/03A287A2-4816-3167-9B48-65EAFB44FCA0 |
treatment provided by |
Felipe |
scientific name |
Stylophyllopsis zitteli Frech, 1890 |
status |
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Stylophyllopsis zitteli Frech, 1890 View in CoL
( Fig. 58 View FIG )
Stylophyllopsis zitteli Frech,1890: 49 View in CoL , pl. 13, fig. 9-15 et 17-24. — Cuif 1973: 243, txt-fig. 15-18. — Roniewicz 1989: 125, pl. 39, fig. 8 and pl. 40, fig. 5-7. — Vasseur 2018: 335-336, fig. 3.92.
Stylophyllopsis zitteli var. crassisepta Haas, 1909: 149 , pl. 5, fig. 9.
non Oppelismilia zitteli Kristan-Tollmann & Tollmann, 1963: 562 , pl. 7, fig. 1 et pl. 8, fig. 2-5.
non Phacelostylophyllum zitteli Melnikova, 1972: 198 View in CoL , txt-fig. 5, pl. 9, fig. 6-7; 1975b: 79, txt-fig. 6, pl. 11, fig. 2-7.
Stylophyllopsis zitelli [sic] – Beauvais 1986: 7.
STUDIED SAMPLES. — Two specimens: CPUN 2703 A3-3, CPUN AM16179-8. GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Rhaetian of Austria, Pliensbachian of Amellagou ( High Atlas of Morocco).
DESCRIPTION
Solitary coral, cylindrical to conical, quite irregular in shape. Radial elements are subcompact costosepta of a well-defined stylophyllid structure in their inner part but showing a wavy mid-septal line in the two peripheral thirds (this character can fit with a stylophyllid structure, see for example Cuif 1972 or Stolarski & Russo 2002). They are large, with detachments of quite rough septal spines at the inner edge and sometimes some stereome layers in depth. The last-order septa are constituted of only one or two septal spines that appear oblong (i.e. subcircular but elongated) in transverse section. No columella observed but the genus is described as having sometimes a papillose columella made of septal spines projected in the axial space. Endotheca made of large vesicular dissepiments with stereomal thickenings, in continuity with enlarged septa. An often eroded epicostal epitheca s.l. seems to wrap the corallum. Calicular diameter: 14 to 26 mm – Number of septa: 43 to 47 – Septal density: 3 to 4 per 2 mm.
SIMILARITIES AND DIFFERENCES
This species differs from other Stylophyllopsis species by its large, weakly numerous septa with mid-septal line in the peripheral part of the corallite transverse section. Dissepiments are large too. The last-order septa are sometimes constituted of only one or two septal spines that appear oblong (i.e. subcircular, elongated) in transverse section.
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 |
Stylophyllopsis zitteli Frech, 1890
Vasseur, Raphaël & Lathuilière, Bernard 2021 |
Stylophyllopsis zitelli
BEAUVAIS L. 1986: 7 |
Phacelostylophyllum zitteli
MELNIKOVA G. K. 1972: 198 |
Oppelismilia zitteli Kristan-Tollmann & Tollmann, 1963: 562
TOLLMANN E. & TOLLMANN A. 1963: 562 |
Stylophyllopsis zitteli var. crassisepta
HAAS O. 1909: 149 |
Stylophyllopsis zitteli
VASSEUR R. 2018: 335 |
RONIEWICZ E. 1989: 125 |
CUIF J. P. 1973: 243 |
FRECH F. 1890: 49 |