Back
Chatangiella karinae
Chatangiella karinae, Kirsch, 2000, p. 33-34, pl.4, figs.9-11; text-fig.9.
Name not validly published: no English or Latin description.
Holotype: Kirsch, 2000, pl.4, fig.9.
Age: ?Mid-Late Campanian.
Original Description: Kirsch, 2000 [translation pkb 2025]:
Derivatio nominis: In honor of my wife Karin, who has supported and encouraged my research throughout the years.
Holotype: specimen 1075.1 (sample KG-14). EF: S 39.
Paratype: Preparation 1074.1 (sample KG-13). EF: W 42/1.
Locus typicus: Kalkgraben-Fracture; Schliersee, Upper Bavaria.
Stratum typicum: limestone graben layers; Rhenodanubian flysch zone; (?)Middle Campanian Upper Campanian (Ventricosa-Calcarata zone).
Diagnosis: Dorsoventrally compressed, bicavate, intermediate cyst that has an ellipsoidal, smooth, thin-walled endocyst (central body). The pericyst, which is also smooth to finely granulated, is clearly sculpted and characterized by a short, tapering apical process sitting on a clearly developed low “shoulder” with straight flanks. Signs of tabulation are shown by the archaeopyle and the clearly developed rows of nodes on the pericyst in the area of the cingulum and the pre- and postcingulate area. Description: The bicavate cyst, whose length is greater than its width, has a pentagonal habit. A short, tapered apical process is developed, which is clearly wider at the distal end. On the hypocyst there are two weak, tapered antapical processes that are variable in length. The left antapical horn is slightly longer developed. The flanks of the hypocyst are slightly convex. The epicyst is characterized by a clearly developed short, tapering apical horn. This sits on a flat, clearly low “shoulder” with slightly convex flanks and, proximally, increasingly concave indentations. The epicyst is low and wider than it is high. The clearly developed, low, longitudinally parallel rows of nodes in the form of rounded, truncated thorn-like elements are characteristic. The latter are also distributed over the cyst surface in the area of the anterior and posterior pericoel. These correspond to the penitabular areas of precingulate and postcingulate paraplates. In individual specimens, knot-like elements are clearly lined up on the flanks of the epicyst. The cingulum, interrupted by these transverse rows of knot-like processes, is clearly developed (see Fig. 9). The endophragm has a wall thickness of approx. 0.5 gm and is psilate to weakly granulated. The periphragm is also thin, about 0.5 gm thick and finely granulated with nodular processes (tuberculae). The periarchaeopyle is intercalar (I/I, only 2a) and iso- to latiomegaform, the perioperculum is free, not posterior adnate. An endoarcheopyle is not visible. Tabulation: 4', 3a, 7", ?c, 5"', 2"". Comparison: In Chatangiella ditissima (McIntyre 1975) with a clearly developed shoulder, the clear ornamentation with knots or Spines on the pericyst (Kirsch 1991: 104). Chatangiella madura Lentin & Williams 1976 shows, in addition to a clear division into three parts, a clearer development of the rows of nodes and is more comparable to Chatangiella tripartita (Cookson & Eisenack 1960a). Chatangiella williamsii Yun 1981 also has a truncated apical horn like Chatangiella karinae sp. nov., but shows a weakly granulated periphragm without clear sculptures. Chatangiella spectabihs (Alberti 1959b) is also of the new species, among others. differentiated by the formation of the cingulum and the wall of the periphragm. According to the original drawings of the holotype of Chatangiella manumi (Vozzhennikova 1967), this species has a clearly different habitus. Chatangiella vinigrii (Vozzhennikova 1967) is significantly larger and shows a different formation of the epicyst (cf. Lentin & Vozzhennikova 1990: 47-48). There are also similarities to Chatangiella arvensis Marshall 1988, especially with regard to the development of the overall habitus and the developed shoulders of the hypocyst. However, the periphragm is scabrate to finely granulated, the tabulation is clearly marked on the pericyst and the shoulder has clearly convex flanks (Marshall 1988:201).
Dimensions: Holotype: endocyst size 36 x 40 µm; Pericyst size 60 x 44 µm; Length of apical horn 6 µm; length of antapical horn 4 µm; Spine length 0.5-1.5 µm. Variation: Total size 56-60 x 40-44 µm; Central body size 32-36 x 38-40 µm; Length of apical horn 4-6 µm; Length of the antapical horn 3-4 µm. Material: Over 10 copies. Occurrence: Profile Kalkgraben-Bruch (Kalkgraben-Layers, RDF). More commonly observed in the hanging part of the profile (e.g. KG-28). Age: (?)Middle-Upper Campanian (ventricosa - calcarata zone).
Name not validly published: no English or Latin description.
Holotype: Kirsch, 2000, pl.4, fig.9.
Age: ?Mid-Late Campanian.
Original Description: Kirsch, 2000 [translation pkb 2025]:
Derivatio nominis: In honor of my wife Karin, who has supported and encouraged my research throughout the years.
Holotype: specimen 1075.1 (sample KG-14). EF: S 39.
Paratype: Preparation 1074.1 (sample KG-13). EF: W 42/1.
Locus typicus: Kalkgraben-Fracture; Schliersee, Upper Bavaria.
Stratum typicum: limestone graben layers; Rhenodanubian flysch zone; (?)Middle Campanian Upper Campanian (Ventricosa-Calcarata zone).
Diagnosis: Dorsoventrally compressed, bicavate, intermediate cyst that has an ellipsoidal, smooth, thin-walled endocyst (central body). The pericyst, which is also smooth to finely granulated, is clearly sculpted and characterized by a short, tapering apical process sitting on a clearly developed low “shoulder” with straight flanks. Signs of tabulation are shown by the archaeopyle and the clearly developed rows of nodes on the pericyst in the area of the cingulum and the pre- and postcingulate area. Description: The bicavate cyst, whose length is greater than its width, has a pentagonal habit. A short, tapered apical process is developed, which is clearly wider at the distal end. On the hypocyst there are two weak, tapered antapical processes that are variable in length. The left antapical horn is slightly longer developed. The flanks of the hypocyst are slightly convex. The epicyst is characterized by a clearly developed short, tapering apical horn. This sits on a flat, clearly low “shoulder” with slightly convex flanks and, proximally, increasingly concave indentations. The epicyst is low and wider than it is high. The clearly developed, low, longitudinally parallel rows of nodes in the form of rounded, truncated thorn-like elements are characteristic. The latter are also distributed over the cyst surface in the area of the anterior and posterior pericoel. These correspond to the penitabular areas of precingulate and postcingulate paraplates. In individual specimens, knot-like elements are clearly lined up on the flanks of the epicyst. The cingulum, interrupted by these transverse rows of knot-like processes, is clearly developed (see Fig. 9). The endophragm has a wall thickness of approx. 0.5 gm and is psilate to weakly granulated. The periphragm is also thin, about 0.5 gm thick and finely granulated with nodular processes (tuberculae). The periarchaeopyle is intercalar (I/I, only 2a) and iso- to latiomegaform, the perioperculum is free, not posterior adnate. An endoarcheopyle is not visible. Tabulation: 4', 3a, 7", ?c, 5"', 2"". Comparison: In Chatangiella ditissima (McIntyre 1975) with a clearly developed shoulder, the clear ornamentation with knots or Spines on the pericyst (Kirsch 1991: 104). Chatangiella madura Lentin & Williams 1976 shows, in addition to a clear division into three parts, a clearer development of the rows of nodes and is more comparable to Chatangiella tripartita (Cookson & Eisenack 1960a). Chatangiella williamsii Yun 1981 also has a truncated apical horn like Chatangiella karinae sp. nov., but shows a weakly granulated periphragm without clear sculptures. Chatangiella spectabihs (Alberti 1959b) is also of the new species, among others. differentiated by the formation of the cingulum and the wall of the periphragm. According to the original drawings of the holotype of Chatangiella manumi (Vozzhennikova 1967), this species has a clearly different habitus. Chatangiella vinigrii (Vozzhennikova 1967) is significantly larger and shows a different formation of the epicyst (cf. Lentin & Vozzhennikova 1990: 47-48). There are also similarities to Chatangiella arvensis Marshall 1988, especially with regard to the development of the overall habitus and the developed shoulders of the hypocyst. However, the periphragm is scabrate to finely granulated, the tabulation is clearly marked on the pericyst and the shoulder has clearly convex flanks (Marshall 1988:201).
Dimensions: Holotype: endocyst size 36 x 40 µm; Pericyst size 60 x 44 µm; Length of apical horn 6 µm; length of antapical horn 4 µm; Spine length 0.5-1.5 µm. Variation: Total size 56-60 x 40-44 µm; Central body size 32-36 x 38-40 µm; Length of apical horn 4-6 µm; Length of the antapical horn 3-4 µm. Material: Over 10 copies. Occurrence: Profile Kalkgraben-Bruch (Kalkgraben-Layers, RDF). More commonly observed in the hanging part of the profile (e.g. KG-28). Age: (?)Middle-Upper Campanian (ventricosa - calcarata zone).