Cessipylarum Nazarov, 1986

Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, Geodiversitas 39 (3), pp. 419-502 : 480

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

 

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).

Kingdom

Chromista

Phylum

Radiozoa

Class

Polycystina

Order

Entactinaria

Family

Pylentonemidae

Loc

Cessipylarum Nazarov

Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O’Dogherty, Luis 2017
2017
Loc

Cessipylarum

AFANASIEVA M. S. 1986: 30
1986
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