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Jinhudinium granulatum
Jinhudinium granulatum Qian Zeshu et al., 1986
Holotype: Qian Zeshu et al., 1986, pl.1, fig.2
Age: Paleocene-Eocene
Translation Qian Zeshu et al., 1986: GSC, courtesy R. Fensome
Description: Qian Zeshu et al., 1986
Tests a little flattened on dorso-ventral surfaces, ceratioid in outline. Length greater than width or about equal. Upper test larger than lower test, normally in shape of elongated triangle. Sides slightly concave.
Apical horn formed by compression and extension of upper test. Apical end bluntly rounded. Lower test shaped like side horse. Edge slightly convexo-concave. Two forked antapical horns of unequal length, with overlapping bases on different planes. Wall about 1 Ám thick. Surface finely granulate. Granules sometimes regularly aligned and appearing striate. No sulcus, cingulum or inner body. Combination archaeopyle of type AtI3Pa. Transapical archaeopyle suture conspicuously located on flattened surface of upper test. Operculum joined along margin of the equivalent of the paracingulum.
Size: Tests 32 - 50 Ám in total length and 30 - 36 Ám wide. Antapical horns 7 - 11 Ám and 12.5 - 15 Ám long respectively (6 measured). Holotype 43 Ám long and 37 Ám wide; antapical horns 11.5 Ám and 10 Ám.
Locality and Horizon: Jinhu, Hanjiang and Jiangdu: Second Formation of the Funing Group.
Holotype: Qian Zeshu et al., 1986, pl.1, fig.2
Age: Paleocene-Eocene
Translation Qian Zeshu et al., 1986: GSC, courtesy R. Fensome
Description: Qian Zeshu et al., 1986
Tests a little flattened on dorso-ventral surfaces, ceratioid in outline. Length greater than width or about equal. Upper test larger than lower test, normally in shape of elongated triangle. Sides slightly concave.
Apical horn formed by compression and extension of upper test. Apical end bluntly rounded. Lower test shaped like side horse. Edge slightly convexo-concave. Two forked antapical horns of unequal length, with overlapping bases on different planes. Wall about 1 Ám thick. Surface finely granulate. Granules sometimes regularly aligned and appearing striate. No sulcus, cingulum or inner body. Combination archaeopyle of type AtI3Pa. Transapical archaeopyle suture conspicuously located on flattened surface of upper test. Operculum joined along margin of the equivalent of the paracingulum.
Size: Tests 32 - 50 Ám in total length and 30 - 36 Ám wide. Antapical horns 7 - 11 Ám and 12.5 - 15 Ám long respectively (6 measured). Holotype 43 Ám long and 37 Ám wide; antapical horns 11.5 Ám and 10 Ám.
Locality and Horizon: Jinhu, Hanjiang and Jiangdu: Second Formation of the Funing Group.