Cessipylarum Nazarov, 1986
publication ID |
https://doi.org/ 10.5252/g2017n3a4 |
publication LSID |
urn:lsid:zoobank.org:pub:603CD230-5931-4506-A122-9CBC2F89189F |
persistent identifier |
https://treatment.plazi.org/id/0A488798-6A04-4555-FF7C-FE3B0968AABC |
treatment provided by |
Felipe |
scientific name |
Cessipylarum Nazarov |
status |
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Cessipylarum Nazarov in Afanasieva, 1986
Cessipylarum Nazarov in Afanasieva, 1986: 30.
TYPE SPECIES. — Pylentonema insueta Nazarov, 1975 ( Nazarov 1975b: 97, pl. 21, fig. 6-7).
AGE AND LOCATION OF TYPE MATERIAL. — Middle Ordovician, upper Dapingian, eastern Kazakhstan. Chagan River.
TAXON CODE. — 255.
STATUS. — Junior synonym of Kalimnasphaera Webby & Blom, 1986 (herein).
DIAGNOSIS. — “Раковина субсферическая, стенка пористая. Внутренний каркас представлен полой, непористой сферой с отходящими от нее семью лучами. В некоторых случаях на лучах внутреннего каркаса отмечается развитие апофизов, имеющих тенденцию к соединению и образованию второй, внутренней, частично развитой оболочки. Раковина несет семь основных конусовидных игл, из которых две находятся около пилома, а остальные пять расположены приблизительно под углом 90° друг к другу по всей поверхности скелета.Дополнительные иглы развиты на узлах межпоровой решетки. Пиломное отверстие окаймлено утолщенным валиком и двумя основными иглами.” (Nazarov in Afanasieva 1986: 30).
DIAGNOSIS (English translation). — “Spherical shell, porous wall. lnternal shell represented by a hollow, non-porous sphere with seven rays. In some cases, on the rays of the inner framework some apophyses that can unite to form a second, inner and incomplete shell can be observed. The shell has seven conical spines, two of which are around the pylome and the remaining five are located at approximately 90° angles to each other over the entire skeleton. Additions spines are developed on the porous lattice. Pylome surrounded by thickened cylindrical spines and by the two main spines.”
REMARKS
This may be a misspelling of the genus C essipylorum, yet the type species designated ( Pylentonema insueta Nazarov, 1975 ) is different to that of Cessipylorum ( Pylentonema aperta Nazarov, 1975 ). Nonetheless, Kalimnasphaera has priority because the date of publication. Webby & Blom (1986; publication in January) precedes Afanasieva (1986).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Cessipylarum Nazarov
Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis 2017 |
Cessipylarum
AFANASIEVA M. S. 1986: 30 |