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Cleistosphaeridium deflandrei

From Fensome et al., 2019:
Cleistosphaeridium deflandrei Courtinat, 1989, p.166, pl.12, fig.5; pl.13, fig.12. Holotype: Deflandre, 1939a, pl.10, fig.9; Deflandre, 1947c, fig.1, no.5. Name illegitimate — nomenclatural senior synonym: Hystrichosphaeridium (now Impletosphaeridium) ehrenbergii, which has the same type. Courtinat (1989, p.166) erected the species Cleistosphaeridium deflandrei and designated as holotype the specimen illustrated in Deflandre (1939a, pl.10, fig.9) and Deflandre (1947c, fig.1, no.5). This is the only specimen of Hystrichosphaeridium ehrenbergii illustrated by Deflandre (1947c) when he erected that species, and which thus must be considered its holotype. Courtinat (1989, p.166) considered Hystrichosphaeridium ehrenbergii to be not validly published, since Deflandre (1947c) did not give a diagnosis or designate a holotype. ICN Article 40.1 indicates that designation of a holotype was not required before 1958. Also, according to ICN Article 38.1, valid publication requires that new name be accompanied by a description or a diagnosis, by a reference to a previously effectively published description or diagnosis. Deflandre (1947c, fig.1, no.5) referred to "H. cf. hirsutum (Ehr.) Defl. 1938", this reference including a description by Deflandre (1939a, p.191). Hence, Hystrichosphaeridium ehrenbergii must be regarded as having been validly published by Deflandre (1947c); consequently Cleistosphaeridium deflandrei is an illegitimate name. Age: Jurassic.

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Original diagnosis: [Courtinat, 1989, p.166]: (Translation: LPP):

Diagnosis:
Skolochorate cyst, the wall is formed by an autophragm which bears about 45 simple apicular processes. The length of these hollow processes is 30-50% of the body diameter. An apical archaeopyle is present and visible by its polygonal outline without accessory sutures. No other paratabulation element is discernible; the processes are nontabular.
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