Megacanthopora enodata, Ernst & Wyse Jackson & Aretz, 2015

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 : 180

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-F74D-FFB2-A00D-FD66E10DFDA9

treatment provided by

Felipe

scientific name

Megacanthopora enodata
status

sp. nov.

Megacanthopora enodata View in CoL n. sp.

( Figs 20 View FIG E-I; 21A; Appendix)

ETYMOLOGY. — The species name refers to being it distinct among other Megacanthopora species (from Latin “enodatus”, distinct).

HOLOTYPE. — SMF 21.891 View Materials .

PARATYPES. — SMF 21.892- SMF 21.896.

TYPE LOCALITY. — Roque Redonde (Montagne Noire, southern France).

TYPE HORIZON. — Carboniferous, Mississippian (upper Visean).

DIAGNOSIS. — Branched colonies of intermediate diameter; exozones wide; large acanthostyles and abundant aktinotostyles; metazooecia common; rare basal diaphragms; autozooecial walls laminated with numerous mural spines.

DESCRIPTION

Branched colonies, 1.50-1.90 mm in diameter, with 0.66- 0.82 mm wide endozones and 0.42-0.54 mm wide exozones. Autozooecia tubular, growing for short distance parallel to branch axis, abruptly bending in exozones and intersecting colony surface at nearly right angle; having polygonal shape in transverse section of endozone. Autozooecial apertures oval to slightly polygonal, arranged irregularly on branches. Basal diaphragms rare, thin, planar. Aktinotostyles abundant, arranged irregularly between autozooecia. Acanthostyles large, with narrow hyaline cores and wide laminated sheaths, arranged irregularly on the colony surface. Metazooecia small and short, arranged irregularly on the colony surface. Autozooecial walls finely laminated, with dark dividing layer, 0.01-0.02 mm thick in endozone; laminated, without distinct boundaries, protruded by abundant mural spines, 0.18-0.19 mm thick in exozones. Mural spines irregularly arranged in exozonal wall, opening into autozooecial cavities and on colony surface, 0.005 -0.010 mm in diameter.

COMPARISON

Megacanthopora enodata View in CoL n. sp. differs from M. fallacis Moore, 1929 View in CoL in thinner branches (branch diameter 1.50-1.90 mm vs 2.0- 3.5 mm in M. fallacis View in CoL ) and in smaller distances be- tween aperture centres (0.30-0.44 mm vs 0.33-0.60 mm in M. fallacis View in CoL ). Megacanthopora enodata View in CoL differs from M. gracilis Dunaeva, 1973 View in CoL from the Lower Carboniferous (Namurian) of Ukraine in larger apertures (aperture width 0.13-0.19 mm vs 0.10-0.18 mm in M. gracilis View in CoL ).

Order FENESTRATA Suborder FENESTELLINA Astrova & Morozova, 1956 Family FENESTELLIDAE King, 1849 View in CoL

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Bryozoa

Class

Stenolaemata

Order

Cryptostomida

Family

Rhabdomesidae

Genus

Megacanthopora

Loc

Megacanthopora enodata

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

Megacanthopora enodata

Ernst & Wyse Jackson & Aretz 2015
2015
Loc

Megacanthopora enodata

Ernst & Wyse Jackson & Aretz 2015
2015
Loc

FENESTRATA

Ernst & Wyse Jackson & Aretz 2015
2015
Loc

M. gracilis

Dunaeva 1973
1973
Loc

M. gracilis

Dunaeva 1973
1973
Loc

FENESTELLINA

Astrova & Morozova 1956
1956
Loc

M. fallacis

Moore 1929
1929
Loc

M. fallacis

Moore 1929
1929
Loc

M. fallacis

Moore 1929
1929
Loc

FENESTELLIDAE

King 1849
1849
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF