Sulcoretepora d’Orbigny, 1849

Ernst, Andrej, Wyse Jackson, Patrick N. & Aretz, Markus, 2015, Bryozoan fauna from the Mississippian (Visean) of Roque Redonde (Montagne Noire, southern France), Geodiversitas 37 (2), pp. 151-213 : 168

publication ID

https://doi.org/ 10.5252/g2015n2a2

publication LSID

urn:lsid:zoobank.org:pub:BA9B2FF0-9D3B-44AF-894F-419DE5AE4C13

persistent identifier

https://treatment.plazi.org/id/038D87E1-F741-FFBE-A1EA-FB07E183FAF7

treatment provided by

Felipe

scientific name

Sulcoretepora d’Orbigny, 1849
status

 

Genus Sulcoretepora d’Orbigny, 1849 View in CoL

Arcanopora Vine, 1884: 204 View in CoL .

Acanthopora Vine View in CoL – Morozova 1960: 86 (incorrect subsequent spelling). — Mstania Schulga-Nesterenko 1955: 175.

TYPE SPECIES. — Flustra ? parallela Phillips, 1836 by original designation. Lower Carboniferous of Whitewell; Yorkshire, England.

DIAGNOSIS. — Colony narrow bifoliate ribbons, dichotomously branched in plane of mesotheca; elongate, rounded autozooecia in ranges, rhombically arranged on lateral sides of branches; lunaria elevated on proximolateral sides of autozooecia; range walls elevated; monticules absent; branch margins narrow, noncelluferous. Mesotheca with dark central layer and laminated outer layers; sharply folded in centre, undulatory near branch margins; median tubules absent. Autozooecia full width and rectangular to parallelogram shaped in deep tangential section; contiguous; alternating across mesotheca. Compound range walls with dark median zone continuous into boundary zone in mesotheca; lateral zones laminated; branched dark zones and tubuli in thickened range walls in exozone. Autozooecia subquadrate to subhemispherical in cross section at mesotheca; angular teardrop shaped in deep tangential section in mid exozone and partially isolated between range walls by small, blisterlike vesicles. Lunaria laminated, indistinct. Vesicles adjacent to mesotheca only at noncelluliferous margins. Stereom laminated with tubules in endozone.

OCCURRENCE. — Devonian to Permian, Europe, North America, Asia.

COMPARISON

Sulcoretepora d’Orbigny, 1849 View in CoL differs from Cystodictya Ulrich, 1882 View in CoL by absence of hemisepta, often plicated and folded mesotheca as well as by distinctly tripartite wall microstructure.

Sulcoretepora parallela ( Phillips, 1836) View in CoL ( Fig. 14 View FIG A-E; Appendix)

For synonymy see Wyse Jackson (1996: 158).

MATERIAL. — SMF 21.824- SMF 21.837, TCD.60342.

OCCURRENCE. — Carboniferous, Mississippian (Visean); Roque Redonde (Montagne Noire, southern France), Britain, Ireland.

DESCRIPTION

Branched bifoliate colonies.Branches lens-shaped in transverse section, 0.60-1.08 mm wide and 0.54-0.75 mm thick in the thickest portion of transverse section. Autozooecia short, budding from a straight mesotheca, trapezoid to semicircular in transverse section at their bases, rectangular in deep tangential section, becoming rounded in the exozone. Mesotheca 0.005 - 0.010 mm thick, protruding laterally on both sides of colony. Rare planar diaphragms present in autozooecia. Autozooecial apertures circular to oval, arranged in 3-5 alternating rows on the colony surface. Lunaria obscure. Vesicles few, flat, having rounded roofs,occurring mainly at the base of exozone.Stereom weakly developed, laminated, containing small tubules.Longitudinal crests dividing apertural rows well developed.

COMPARISON

Sulcoretepora parallela ( Phillips, 1836) View in CoL is similar to S. magnistriata Schulga-Nesterenko,1955 View in CoL from the Lower Carboniferous of Russia but differs in smaller branch width and thickness, as well as in smaller autozooecial apertures (autozooecial aperture width 0.08-0.13 mm vs 0.10-0.15 mm in S. magnistriata View in CoL ).

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Bryozoa

Class

Stenolaemata

Order

Cystoporida

Family

Cystodictyonidae

Loc

Sulcoretepora d’Orbigny, 1849

Ernst, Andrej, Wyse Jackson, Patrick N. & Aretz, Markus 2015
2015
Loc

Acanthopora

MOROZOVA I. P. 1960: 86
1960
Loc

Arcanopora

VINE G. R. 1884: 204
1884
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