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Suessia listeri
Suessia listeri Stover and Helby, 1987a, p.121–122,124, figs.21A–C,22A–D,23A–L. Emendation: Below, 1987a, p.77,80, as Wanneria listeri.
Now Wanneria. Originally Suessia, subsequently (and now) Wanneria.
Holotype: Stover and Helby, 1987, fig. 22A-D
Paratypes: Stover and Helby, 1987, fig. 23A-J
Locus typicus: Unnamed interval (2419.1 m) of Well Eendracht-1, Carnarvon Basin, Western Australia
Stratum typicum: Norian
Original description: Stover and Helby, 1987, p. 121-124
Cysts proximate and subspherical. Autophragm smooth, thin (about 1 µm or less) surface divided into numerous, polygonal paraplates delimited by parasutural ridges with distinctly spinate crests. Paraplates 4- to 7-sided (the majority ranging in maximum dimension from 6-15 µm, (most are in the 10-12 µm range), and having narrow relatively low bounding ridges (their width and height are less than 2.5 µm). Crestal spines nearly always solid, some connected proximally, tapered distally, with acuminate, or blunt or less frequently bifurcate tips. Spines 1.5-5 µm long (generally about 3 µm), and their length fairly uniform on individual specimens. Specimens without opercula having 56-64 paraplates; those with opercula have an additional 12-19 paraplates. In the equatorial and adjacent areas paraplates arranged in 3, fairly distinct, latitudinal rows; elsewhere their apparent latitudinal alignment less evident. Paratabulation 0-2pr, 4-6", 6-10a, 0-?2ap, 12-14"", 12c, 12""", 11-16p, 5-6pa, 1"""", and 3s. Combination archeopyle, type [tAtI], usually formed by the release of all paraplates anterior to the precingular series. On occasional specimens, extremities of principal archeopyle suture not meeting, and operculum remaining adherent. Position of the parasulcus inferred by offsetting of cingular and postcingular series and by generally incompletely outlined paraplates (up to 3) on the hypocyst in the area of the offset. Specimens 52(63)80 µm in width; those without opercula 40(51)60 µm in length; specimens with opercula 14 to 16 µm longer; 25 specimens measured.
Now Wanneria. Originally Suessia, subsequently (and now) Wanneria.
Holotype: Stover and Helby, 1987, fig. 22A-D
Paratypes: Stover and Helby, 1987, fig. 23A-J
Locus typicus: Unnamed interval (2419.1 m) of Well Eendracht-1, Carnarvon Basin, Western Australia
Stratum typicum: Norian
Original description: Stover and Helby, 1987, p. 121-124
Cysts proximate and subspherical. Autophragm smooth, thin (about 1 µm or less) surface divided into numerous, polygonal paraplates delimited by parasutural ridges with distinctly spinate crests. Paraplates 4- to 7-sided (the majority ranging in maximum dimension from 6-15 µm, (most are in the 10-12 µm range), and having narrow relatively low bounding ridges (their width and height are less than 2.5 µm). Crestal spines nearly always solid, some connected proximally, tapered distally, with acuminate, or blunt or less frequently bifurcate tips. Spines 1.5-5 µm long (generally about 3 µm), and their length fairly uniform on individual specimens. Specimens without opercula having 56-64 paraplates; those with opercula have an additional 12-19 paraplates. In the equatorial and adjacent areas paraplates arranged in 3, fairly distinct, latitudinal rows; elsewhere their apparent latitudinal alignment less evident. Paratabulation 0-2pr, 4-6", 6-10a, 0-?2ap, 12-14"", 12c, 12""", 11-16p, 5-6pa, 1"""", and 3s. Combination archeopyle, type [tAtI], usually formed by the release of all paraplates anterior to the precingular series. On occasional specimens, extremities of principal archeopyle suture not meeting, and operculum remaining adherent. Position of the parasulcus inferred by offsetting of cingular and postcingular series and by generally incompletely outlined paraplates (up to 3) on the hypocyst in the area of the offset. Specimens 52(63)80 µm in width; those without opercula 40(51)60 µm in length; specimens with opercula 14 to 16 µm longer; 25 specimens measured.