CATALOG OF ORIGINAL DESCRIPTIONS: Spirocyrtis scalaris Haeckel 1887
This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Citation: Spirocyrtis scalaris Haeckel 1887Rank: speciesDescribed on page(s) : p.1509Type specimens: pl.76, fig.14Type age (chronostrat): [presumably Quaternary though some forms reported from these stations appear to be Tertiary]Type locality: LM25; LM28; LM30; LM31Type repository: No information given
Original Description Shell conical, gradually dilating towards the wide open mouth, with ten to twelve spiral convolutions, which correspond to the same number of short and broad chambers or joints, gradually increasing in breadth; all joints form together a spirally winding staircase. The length or height of the single joints or stairs is about equal, and each bears four or five transverse rows of small, square pores. Cephalis flat, cap-shaped, with two or three short divergent horns. Size: Length of the shell (with ten joints or turnings) 160µm, length of each joint (on an average) 16µm; breadth of the third joint 40µm, of the fifth joint 70µm, of the tenth joint 100µm. Editors' Notes Haeckel listed Spirocyrtis scalaris under the subgeneric name Spirocyrtidium, but did not include the subgeneric name in the species name.[comment from RadWorld database]
References:
Haeckel, E (1887a). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 18: 1-1803. gsO
Spirocyrtis scalaris compiled by the radiolaria@mikrotax project teamviewed: 1-6-2023
Spirocyrtis scalaris Haeckel 1887.jpg
Spirocyrtis scalaris Haeckel 1887.jpg
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