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Spiniferites splendidus
Spiniferites splendidus Harland, 1979
Holotype: Harland, 1979, pl.3, figs.1-2
Locus typicus: Bay of Biscay, Hole 400A, DSDP Leg 48, Bay of Biscay, North Atlantic
Stratum typicum: early Pliocene
Age: Late Miocene-Early Pliocene
Original diagnosis: Harland 1979b, p. 537
Large spherical to ovoid cyst made up of two closely adpressed wall layers, the periphragm of which is smooth to micropunctate. Processes are large, long, erect, and of two types. The first are membranous box-shaped and carry smaller tubular spines with bi- or trifid tips; these are prevalent on the sulcus and the pre-cingular plate series, on the cingulum the ?posterior intercalary position and at the antapex (Plate 3, Figure 2). The second are gonal, long, thin, tubular, and have marked bifurcate or trifurcate terminations with bifid distal tips (Plate 3, Figure 1). Tabulation typical of the genus, archeopyle pre-cingular formed by loss of plate 3".
Dimensions: Holotype: Length, excluding processes 70.0 µm; breadth 74.0 µm, maximum process length 42.0 µm. Range: Length 62.0-84.0 µm; breadth 52.0-76.0 µm, process length 22.0-44.0 µm. Eight specimens
Original description: Harland 1979b, p. 537
Some specimens of this species are broader than long and exhibit some separation of the wall layers beneath the processes giving rise to bulbous process bases. The cyst is characterized, however, by its large size and by the distinctive morphology of the processes. The membranous processes are particularly conspicuous especially those in the postenor intercalary position (Plate 3, Figure 2). The tabulation is outlined by low edges or membranes which are confluent with the process structure.
Remarks: The size and process morphology of this cyst distinguishes it from all other species of Spiniferites. It is most similar to S. mirabilis (Rossignol) Sarjeant from which it differs in being larger, and in possessing many flamboyant membranous processes.
Occurrence: Observed in late Miocene to early Pliocene sediments from Hole 400A.
Holotype: Harland, 1979, pl.3, figs.1-2
Locus typicus: Bay of Biscay, Hole 400A, DSDP Leg 48, Bay of Biscay, North Atlantic
Stratum typicum: early Pliocene
Age: Late Miocene-Early Pliocene
Original diagnosis: Harland 1979b, p. 537
Large spherical to ovoid cyst made up of two closely adpressed wall layers, the periphragm of which is smooth to micropunctate. Processes are large, long, erect, and of two types. The first are membranous box-shaped and carry smaller tubular spines with bi- or trifid tips; these are prevalent on the sulcus and the pre-cingular plate series, on the cingulum the ?posterior intercalary position and at the antapex (Plate 3, Figure 2). The second are gonal, long, thin, tubular, and have marked bifurcate or trifurcate terminations with bifid distal tips (Plate 3, Figure 1). Tabulation typical of the genus, archeopyle pre-cingular formed by loss of plate 3".
Dimensions: Holotype: Length, excluding processes 70.0 µm; breadth 74.0 µm, maximum process length 42.0 µm. Range: Length 62.0-84.0 µm; breadth 52.0-76.0 µm, process length 22.0-44.0 µm. Eight specimens
Original description: Harland 1979b, p. 537
Some specimens of this species are broader than long and exhibit some separation of the wall layers beneath the processes giving rise to bulbous process bases. The cyst is characterized, however, by its large size and by the distinctive morphology of the processes. The membranous processes are particularly conspicuous especially those in the postenor intercalary position (Plate 3, Figure 2). The tabulation is outlined by low edges or membranes which are confluent with the process structure.
Remarks: The size and process morphology of this cyst distinguishes it from all other species of Spiniferites. It is most similar to S. mirabilis (Rossignol) Sarjeant from which it differs in being larger, and in possessing many flamboyant membranous processes.
Occurrence: Observed in late Miocene to early Pliocene sediments from Hole 400A.