CATALOG OF ORIGINAL DESCRIPTIONS: Actinomma pachycapsa 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.


Higher levels: rads_cat -> A -> Actinomma -> Actinomma pachycapsa
Other pages this level: << < A. imperfecta, A. intermedium, A. japonicum, A. kerguelenensis, A. leptodermum longispina, A. livae, A. magnifenestra, A. medianum, A. mediterranensis, A. miocenicum, A. mirabile, A. multispinula, A. nigriniae, A. octoacanthium, A. okurai, A. pachycapsa, A. pachyderma, A. pellucidata, A. plasticum, A. polyceris, A. regulare, A. rotula, A. saccoi, A. schwageri, A. sol, A. spinigerum, A. staurotholonia, A. tanyacantha, A. telarania, A. tetracanthum, A. turidae> >>

Actinomma pachycapsa

Citation: Actinomma pachycapsa Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.256
Family (traditional): Actinommidae
Family (modern): Actinommidae

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Current identification:


Original Description
Cortical shell very thick walled, with irregular, roundish pores, twice to four times as broad as the bars; twelve to sixteen on the radius. Radial proportion of the three spheres = 1: 3: 12. Both medullary shells of similar irregular structure, connected with the cortical shell by twelve regularly disposed radial beams, which are prolonged outside into twelve short stout conical spines, as long as the diameter of the middle shell.

Diameter of the outer shell 250µm, middle 60µm, inner 20µm; cortical pores 6 to 12µm, bars 3µm; length of the spines 50µm, breadth 20µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Actinomma pachycapsa under the subgeneric name Actinommura, but did not include the subgeneric name in the species name.

Stratigraphic information for LM21 from Riedel, 1959, p.287.

References:

Haeckel, E (1887). 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 year 1873-1876, Zoology. 18: 1-1803. gs

Riedel, W. R. (1959). Oligocene and Lower Miocene Radiolaria in tropical Pacific sediments. Micropaleontology. 5(3): 285-302. gs


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Actinomma pachycapsa compiled by the radiolaria@mikrotax project team viewed: 27-2-2021

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