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Gochteodinia variabilis
Plate 3, Figures 5, 9, 10, 14
Holotype: Plate 3, Figures 5, 9.
Type Locality: La Charce outcrop, late Valanginian.
Holotype: La Charce outcrop, Slide LCH164/2, early Valanginian, base furcillata Zone, furcillata Sub-zone, E.F. B46.3.
Derivation of Name: From the Latin variabilis, changeable - in reference to the variable ornament of this species.
Diagnosis: A spheroidal to rounded ellipsoidal species with a short, bluntly rounded apical horn. The surface is covered with ornament ranging from granular to coarsely verrucate on individual specimens and which varies between specimens; there is no discernible organisation of the ornament, although it can reduce significantly towards the apex. Tabulation is not expressed and the archeopyle is uncertain.
Dimensions: Holotype Body length - 63 μm. Width - 43 μm.
Overall 71 (64) 56 μm×48 (44) 41 μm
Specimens measured - 5.
Remarks: This species is tentatively assigned to Gochteodinia because of its pareodinioid shape and its cover of sometimes coarse ornament. The variability of the surface ornament between specimens and on individuals and its general coarseness distinguishes this species from other pareodinioids. Its rounded outline separates it from most others. Unfortunately, the archeopyle could not be determined from the small number of specimens recorded here. Occurrences of this species were restricted to La Charce Bed LCH164 (base furcillata Zone, furcillata Sub-zone).
Holotype: Plate 3, Figures 5, 9.
Type Locality: La Charce outcrop, late Valanginian.
Holotype: La Charce outcrop, Slide LCH164/2, early Valanginian, base furcillata Zone, furcillata Sub-zone, E.F. B46.3.
Derivation of Name: From the Latin variabilis, changeable - in reference to the variable ornament of this species.
Diagnosis: A spheroidal to rounded ellipsoidal species with a short, bluntly rounded apical horn. The surface is covered with ornament ranging from granular to coarsely verrucate on individual specimens and which varies between specimens; there is no discernible organisation of the ornament, although it can reduce significantly towards the apex. Tabulation is not expressed and the archeopyle is uncertain.
Dimensions: Holotype Body length - 63 μm. Width - 43 μm.
Overall 71 (64) 56 μm×48 (44) 41 μm
Specimens measured - 5.
Remarks: This species is tentatively assigned to Gochteodinia because of its pareodinioid shape and its cover of sometimes coarse ornament. The variability of the surface ornament between specimens and on individuals and its general coarseness distinguishes this species from other pareodinioids. Its rounded outline separates it from most others. Unfortunately, the archeopyle could not be determined from the small number of specimens recorded here. Occurrences of this species were restricted to La Charce Bed LCH164 (base furcillata Zone, furcillata Sub-zone).