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.
Current identification/main database link: Larcopyle weddellium Lazarus et al. 2005
The small shell (about 110 μm) has a rather asymmetrical, ellipsoidal shape. The large pores are arranged close together, frames are absent in most specimens. A double spiral with closely spaced whorls gives the shell a compact appearance. Characteristically there are distinct caps on one or both poles and the whorls are not completely smooth, but have sharper bends and flattened regions. A wide pylome, often with teeth or a cluster of short spines, is usually present. Occurrence. Late Miocene–Pleistocene, scattered occurrences in the Mid Miocene. Remarks. Larcopyle weddellium is superficially similar to Lithelius minor Jörgensen, 1900, and/or similar lithelid forms, such as Lithelius spiralis Haeckel, 1887, in that all of these forms are built of compact spiral whorls of lattice shell. L. weddellium, however, is consistently ellipsoidal, has somewhat angular whorls, frequently has partially formed whorls at the pole ends of the shell and appears to possess a pylome, as indicated by the weakly expressed cluster of short spines or teeth at one end of the ellipsoidal shell. Larcopyle weddellium is also similar to incomplete specimens of Larcopyle pylomaticus n. comb., but can be distinguished by the characteristically asymmetrical shape of the shell – which is absent in L. pylomaticus – and its larger pores. The specimens illustrated by Nigrini & Lombari (1984) appear to be conspecific with L. weddellium described here, but they will not be formally synonymized without the actual material being examined.
Original Description
Etymology:
Extra details from original publication
Lazarus, D., Faust, K. & Popova-Goll, I. (2005). New species of prunoid radiolarians from the Antarctic Neogene. Journal of Micropalaeontology. 24(2): 97-121. gs References:
Larcopyle weddellium compiled by the radiolaria@mikrotax project team viewed: 8-12-2024
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=262807 Go to Archive.is to create a permanent copy of this page - citation notes |
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