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Batioladinium inordinatum
From Fensome et al., 2019:
Batioladinium inordinatum Duxbury, 2018, p.176–177, pl.9, figs.9,16–18. Holotype: Duxbury, 2018, pl.9, fig.16. Age: early
Valanginian.
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Original description Duxbury, 2018
Plate 9, figures 9, 16–18
Holotype: Plate 9, Figure 16
Paratype: Plate 9, Figures 17, 18
Type Locality: lower Valanginian, Speeton Clay, Speeton, England.
Holotype: Division D4A E.F. N44.3. Paratype: Division D3D E.F. M45.0
Derivation of Name: From the Latin inordinatus, not arranged, disorderly, irregular – in reference to its surface ornament.
Diagnosis: An elongate pareodinioid dinocyst with a tapering but distally rounded apical horn of moderate length and two short antapical horns, the left markedly longer than the right and sharply-tapering. The right antapical horn is often reduced to a low bulge. The archeopyle is apical with the operculum often retained. A deep sulcal notch typical of the genus is invariably present. The surface ornament is irregular and very coarse over much of the cyst surface, but is reduced to granules covering the apical horn. Pedunculate outgrowths are often present on the hypocyst and these may coalesce laterally, particularly at the presumed level of the cingulum.
Dimensions: Holotype: Length – 94 μm. Width – 48 μm.
Overall: Complete specimens: 94 (82) 71μm × 48 (44) 41 μm.
Specimens Measured: 5.
Operculum detached: 71 (68) 66 μm. Width – 48 (44) 41 μm.
Specimens Measured: 7.
Remarks: This is a distinctive, very short-lived species, occurring within the lower Valanginian at Speeton, Beds D4A to D3C, top Polyptychites to lower Paratollia beds.
The degree of coarseness and the irregular character of the surface ornament render this species unique, although irregular ornament is also typical of Batioladinium principium n. sp. and Batioladinium vexillum n. sp. In these species, however, surface ornament is much reduced over the epicyst and absent from the
much longer apical horn.
Batioladinium inordinatum Duxbury, 2018, p.176–177, pl.9, figs.9,16–18. Holotype: Duxbury, 2018, pl.9, fig.16. Age: early
Valanginian.
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Original description Duxbury, 2018
Plate 9, figures 9, 16–18
Holotype: Plate 9, Figure 16
Paratype: Plate 9, Figures 17, 18
Type Locality: lower Valanginian, Speeton Clay, Speeton, England.
Holotype: Division D4A E.F. N44.3. Paratype: Division D3D E.F. M45.0
Derivation of Name: From the Latin inordinatus, not arranged, disorderly, irregular – in reference to its surface ornament.
Diagnosis: An elongate pareodinioid dinocyst with a tapering but distally rounded apical horn of moderate length and two short antapical horns, the left markedly longer than the right and sharply-tapering. The right antapical horn is often reduced to a low bulge. The archeopyle is apical with the operculum often retained. A deep sulcal notch typical of the genus is invariably present. The surface ornament is irregular and very coarse over much of the cyst surface, but is reduced to granules covering the apical horn. Pedunculate outgrowths are often present on the hypocyst and these may coalesce laterally, particularly at the presumed level of the cingulum.
Dimensions: Holotype: Length – 94 μm. Width – 48 μm.
Overall: Complete specimens: 94 (82) 71μm × 48 (44) 41 μm.
Specimens Measured: 5.
Operculum detached: 71 (68) 66 μm. Width – 48 (44) 41 μm.
Specimens Measured: 7.
Remarks: This is a distinctive, very short-lived species, occurring within the lower Valanginian at Speeton, Beds D4A to D3C, top Polyptychites to lower Paratollia beds.
The degree of coarseness and the irregular character of the surface ornament render this species unique, although irregular ornament is also typical of Batioladinium principium n. sp. and Batioladinium vexillum n. sp. In these species, however, surface ornament is much reduced over the epicyst and absent from the
much longer apical horn.