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Pseudomuderongia testudinaria
Pseudomuderongia testadunaria (Burger, 1980) Jain and Khowaja-Ateequzzaman, 1984
Now Muderongia. Originally (and now) Muderongia, subsequently Pseudomuderongia.
Tax. sr. synonym of Phoberocysta lowryi Backhouse, 1987, according to Monteil, 1991.
Tax. sr. synonym of Phoberocysta burgeri Helby, 1987, according to Monteil, 1991.
Tax. sr. synonym of Phoberocysta edgellii Helby, 1987, according to Monteil, 1991.
This species was retained in Muderongia Cookson and Eisenack, 1958, by Stover and Williams, 1987.
Holotype: Burger, 1980b, fig.9B; Fensome et al., 1996, fig.1 — p.2401.
Locus typicus: Helby Beds, Carpentaria Basin, Australia
Stratum typicum ?Hauterivian
Original descripition: Burger, 1980, p. 274: Muderongia testadunaria
A species of Muderongia, usually flattened dorsoventrally. Pericyst broad, extending into a medium-sized to long tapering horn, two lateral horns and two medium-sized antapical horns, the latter identical in size and shape, conical with pointed tips. Lateral horns not longer than width of body, consisting of a tubiform proximal part and a narrower, tapering, pointed distal part which is bent backwards at varying angles. A small "elbow" protrusion is often present at bending point where the paracingulum occurs. Endocyst usually displaced towards apex, outline asymmetrical, rhombic to pentagonal with straight or concave sides and rounded to pointed corners, which sometimes protrude into lower horn cavities. Both endophragm and periphragm very thin, psilate to punctate. Archaeopyle large, apical (type A/A), with an undulating or zigzag margin indicating six praecingular paraplates; in many specimens an offset parasulcal notch is observed. Operculum free. A paracingulum and posterior parasutures are sometimes seen as faint discontinuous lines on the periphragm.
Now Muderongia. Originally (and now) Muderongia, subsequently Pseudomuderongia.
Tax. sr. synonym of Phoberocysta lowryi Backhouse, 1987, according to Monteil, 1991.
Tax. sr. synonym of Phoberocysta burgeri Helby, 1987, according to Monteil, 1991.
Tax. sr. synonym of Phoberocysta edgellii Helby, 1987, according to Monteil, 1991.
This species was retained in Muderongia Cookson and Eisenack, 1958, by Stover and Williams, 1987.
Holotype: Burger, 1980b, fig.9B; Fensome et al., 1996, fig.1 — p.2401.
Locus typicus: Helby Beds, Carpentaria Basin, Australia
Stratum typicum ?Hauterivian
Original descripition: Burger, 1980, p. 274: Muderongia testadunaria
A species of Muderongia, usually flattened dorsoventrally. Pericyst broad, extending into a medium-sized to long tapering horn, two lateral horns and two medium-sized antapical horns, the latter identical in size and shape, conical with pointed tips. Lateral horns not longer than width of body, consisting of a tubiform proximal part and a narrower, tapering, pointed distal part which is bent backwards at varying angles. A small "elbow" protrusion is often present at bending point where the paracingulum occurs. Endocyst usually displaced towards apex, outline asymmetrical, rhombic to pentagonal with straight or concave sides and rounded to pointed corners, which sometimes protrude into lower horn cavities. Both endophragm and periphragm very thin, psilate to punctate. Archaeopyle large, apical (type A/A), with an undulating or zigzag margin indicating six praecingular paraplates; in many specimens an offset parasulcal notch is observed. Operculum free. A paracingulum and posterior parasutures are sometimes seen as faint discontinuous lines on the periphragm.