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Dictyocephalus

Polycystinea - Nassellaria - Lophophaenidae

Taxonomy
Dictyocephalus was named by Ehrenberg (1860) [Sepkoski's age data: Tr R Sepkoski's reference number: ZR80]. It is extant. Its type is Cornutella obtusa.

It was synonymized objectively with Dictyocryphalus by Loeblich and Tappan (1961).

It was assigned to Metoposauridae by Carroll (1988); to Nassellaria by Sepkoski (2002); and to Theoperidae by Liu and Aitchison (2002).

Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by B. Allen on 2024-03-21

Synonyms
Synonymy list
YearName and author
1860Dictyocephalus Ehrenberg
1887Dictyocryphalus Haeckel
1892Dictyocephalus ventricosus Rüst
1961Dictyocryphalus Loeblich and Tappan
1988Dictyocephalus Carroll
2002Dictyocephalus Liu and Aitchison p. 148
2002Dictyocephalus Sepkoski

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RankNameAuthor
kingdomChromistaCavalier-Smith 1981
subkingdomRhizaria()
superphylumRetariaCavalier-Smith 1999
phylumRadiozoa
superclassPolycystinia
RankNameAuthor
classPolycystinea
orderNassellariaEhrenberg 1875
familyLophophaenidaeHaeckel 1881
genusDictyocephalusEhrenberg 1860

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. Dictyocephalus Ehrenberg 1860
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Dictyocephalus obtusus Ehrenberg 1844
Invalid names: Dictyocephalus ventricosus Rüst 1892 [nomen dubium], Dictyocryphalus Haeckel 1887 [objective synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range

Maximum range based only on fossils: base of the Early/Lower Pliensbachian to the top of the Late/Upper Paleocene or 192.90000 to 56.00000 Ma
Minimum age of oldest fossil (stem group age): 184.2 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Pliensbachian192.9 - 184.2Japan D. umenokiensis, D. chinzeii, D. kamikatsuensis, D. sp. (52057)
Maastrichtian72.2 - 66.0Canada (Northwest Territories) D. macrostoma (106433)
Late/Upper Paleocene59.24 - 56.0China (Tibet) D. middouri (69734)