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Hystrichosphaeridium asymmetricum
Hystrichosphaeridium asymmetricum Deflandre and Courteville, 1939, p.100–101, pl.4, figs.1–2. Emendation: Clarke and Verdier, 1967, p.43, as Hexasphaera asymmetrica (combination illegitimate).
Now Callaiosphaeridium. Originally Hystrichosphaeridium, subsequently (and now) Callaiosphaeridium, thirdly Hexasphaera.
Holotype: Deflandre and Courteville, 1939, pl.4, fig.1
Locus typicus: Quarry at Marcoing, Departement du Nord, France
Stratum typicum: Senonian
Translation Deflandre and Courteville, 1939: LPP
Original description: Deflandre and Courtville 1939, p. 100-101:
Diagnosis: The brown, spheroidal shell bears six radiating, tubular appendices around the equator, often unequal in diameter as well as in length. These processes are widened at their distal ends, which are finely denticulate and bear several quite long flexible spines. At the two poles there are two roughly pentagonal fields, unequal, bearing solid, furcate processes at the corners, of very diverse form. These processes unite at their bases to form ridges or ribs which define the polar ffield, then producing more or less distinct meridian crests, which seem to reach the opposite polar field, as follows from the semi- schematical drawing (however, drawing given under reserve). One of the meridian ribs seems to bear, towards the equatorial plane, a simple or furcate, straight or bent process, visible on the left side of the forementioned drawing. Some of the polar processes may be lacking (like in the holotype, where here are only 4); another time, however, they split in two branches, uniting towards their base.
Now Callaiosphaeridium. Originally Hystrichosphaeridium, subsequently (and now) Callaiosphaeridium, thirdly Hexasphaera.
Holotype: Deflandre and Courteville, 1939, pl.4, fig.1
Locus typicus: Quarry at Marcoing, Departement du Nord, France
Stratum typicum: Senonian
Translation Deflandre and Courteville, 1939: LPP
Original description: Deflandre and Courtville 1939, p. 100-101:
Diagnosis: The brown, spheroidal shell bears six radiating, tubular appendices around the equator, often unequal in diameter as well as in length. These processes are widened at their distal ends, which are finely denticulate and bear several quite long flexible spines. At the two poles there are two roughly pentagonal fields, unequal, bearing solid, furcate processes at the corners, of very diverse form. These processes unite at their bases to form ridges or ribs which define the polar ffield, then producing more or less distinct meridian crests, which seem to reach the opposite polar field, as follows from the semi- schematical drawing (however, drawing given under reserve). One of the meridian ribs seems to bear, towards the equatorial plane, a simple or furcate, straight or bent process, visible on the left side of the forementioned drawing. Some of the polar processes may be lacking (like in the holotype, where here are only 4); another time, however, they split in two branches, uniting towards their base.