LARCOSPIROIDEA Haeckel, 1887

Suzuki, Noritoshi, Caulet, Jean-Pierre & Dumitrica, Paulian, 2021, A new integrated morpho- and molecular systematic classification of Cenozoic radiolarians (Class Polycystinea) - suprageneric taxonomy and logical nomenclatorial acts, Geodiversitas 43 (15), pp. 405-573: 451

publication ID

http://doi.org/ 10.5252/geodiversitas2021v43a15

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:DC259A19-9B35-4B33-AD9F-44F4E1DA9983

persistent identifier

http://treatment.plazi.org/id/038DDA73-FFA4-FE05-0599-FC64FA564E1D

treatment provided by

Felipe

scientific name

LARCOSPIROIDEA Haeckel, 1887
status

 

Superfamily LARCOSPIROIDEA Haeckel, 1887   n. stat.

sensu Dumitrica (1989)  

Larcospirida Haeckel, 1887: 691, 695 [as a subfamily].

Pyloniacea   [sic] – Dumitrica 1989: 228-229 [nomen dubium] (= Pylonioidea) ( sensu emend.   ) [as a superfamily]. — De Wever et al. 2001: 127-128 [as a superfamily].

Pyloniaceae [sic] – O’Dogherty 1994: 306 [nomen dubium] (= Pylonioidea) [as a superfamily].

Pyloniilae – De Wever et al. 2001: 148 [nomen dubium, as a subsuperfamily].

Pylonioidea – Afanasieva et al. 2005: S286 [nomen dubium]. — Afanasieva & Amon 2006: 129. — Matsuzaki et al. 2015: 29. — Zhang & Suzuki   2017: 8-9.

DIAGNOSIS. — A Spumellaria   with a Tetrapyle   -mode of growth and a first system consisting of a microsphere, a simple or forked antapical sagittal cap, and two lateral caps developed between the apical part of the microsphere and the top of the sagittal cap.

REMARKS

Since the well-known name “pyloniids” is not any longer applicable to this group on account of its nomen dubium status, Larcospiroidea   , a superfamily name, is used herein. The Larcospiroidea   consist of the Dipylissidae   , Larcospiridae   , Palaeotetrapylidae   , Pylodiscidae   (Clade M3) and Zonariidae   (Clade M4). As explained in the remarks for Phorticioidea   , the presence of S1a-girdle in the sense of Zhang & Suzuki   (2017) is the key distinguishing trait of the Larcospiroidea   (see figs 5.1-5.4 in Zhang & Suzuki   2017). Differing from the G1 of Phorticioidea   , the G1 of the Larcospiroidea   is conjoined by both the microsphere (S1a) and the S1a-girlde. The appearance of the overlapped orientation of the microsphere (S1a) and S1a-girdle appears the same in Phorticioidea   and Larcospiroidea   (compare figs 5.2 with fig. 5.5 in Zhang & Suzuki   2017). Differing from its spherical outline in the Phorticioidea   , the central part of the Larcospiroidea   is elliptical, with two transparent apertures and an S1a-girdle shadow is present (the middle figure in fig. 5.2 in Zhang & Suzuki   2017).

Loc

LARCOSPIROIDEA Haeckel, 1887

Suzuki, Noritoshi, Caulet, Jean-Pierre & Dumitrica, Paulian 2021
2021
Loc

Pyloniacea

DE WEVER P. & DUMITRICA P. & CAULET J. P. & NIGRINI C. & CARIDROIT M. 2001: 127
DUMITRICA P. 1989: 228
1989