- Type images:
type material: P. orcinum
From Suzuki Paleotax db:
1887 Pterocanium (Pterocanarium) orcinum n. sp. Haeckel p. 1329-1330, pl. 73, fig. 2
1913 Pterocanium orcinum Haeckel Popofsky p. 387-388, text-fig. 99
1974 Pterocanium orcimum Haeckel Renz p. 795, pl. 17, fig. 9
1992 Pterocanium orcinum Haeckel Wang & Yang p. 105, pl. 3, fig. 9, pl. 5 fig. 9
1999 Pterocanium orcinum Haeckel Tan & Chen p. 334, text-fig. 5.272
2003 Pterocanium orcinum Haeckel Tan & Su p. 189-190, text-fig. 152
Catalog entries: Pterocanium orcinum
type material: P. orcinumOriginal description: Shell campanulate, nearly three-sided pyramidal, covered with conical spines. Length of the three joints = 1: 4: 3, breadth = 1: 5: 6. Cephalis hemispherical, with a conical horn of the same length. Thorax without prominent swellings, with subregular, circular pores. Abdomen shorter, with three concave basal edges and irregular, polygonal pores. Feet from the girdle strongly divergent, nearly straight.
Length of the three joints, a 20µm, b 80µm, c 60µm; breadth, a 30µm, b 100µm, c 120µm.
Remarks on original description: Haeckel listed Pterocanium orcinum under the subgeneric name Pterocanarium, but did not include the subgeneric name in the species name.
Stratigraphic information for LM21 from Riedel, 1959, p.287]
Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"
Plot of occurrence data:
References:
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Pterocanium orcinum compiled by the radiolaria@mikrotax project team viewed: 22-7-2026
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