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Hystrichosphaeridium spinipansatum
Hystrichosphaeridium spinipansatum (Merrill, 1895) Sarjeant, 1964
Originally Geodia?, subsequently (and now) Hystrichosphaeridium.
Stover and Evitt, 1978, considered this to be a problematical species of Hystrichosphaeridium.
Holotype: Merrill, 1895, textfig.20
Age: Early Cretaceous
Original description (Merrill, 1895)
Geodia? spinipansata, n. sp. Outline perfect. Body egg-shaped and ornamented in a most peculiar way. The significance of the two apparent openings on top is not understood. Spines irregular in length and size, and variously divided at the terminations. Size: diameter, 0.092 mm.; average length of spine, 0.0307 mm. This peculiar form was not found figured, but from its spiny form I placed it with Geodia, and suggest the specific name spinipansata.
Originally Geodia?, subsequently (and now) Hystrichosphaeridium.
Stover and Evitt, 1978, considered this to be a problematical species of Hystrichosphaeridium.
Holotype: Merrill, 1895, textfig.20
Age: Early Cretaceous
Original description (Merrill, 1895)
Geodia? spinipansata, n. sp. Outline perfect. Body egg-shaped and ornamented in a most peculiar way. The significance of the two apparent openings on top is not understood. Spines irregular in length and size, and variously divided at the terminations. Size: diameter, 0.092 mm.; average length of spine, 0.0307 mm. This peculiar form was not found figured, but from its spiny form I placed it with Geodia, and suggest the specific name spinipansata.