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Polymixiipterygii

Osteichthyes

Discussion

Originally ranked as a division

Taxonomy
Polymixiipterygii was named by Betancur-R et al. (2017) [Originally ranked as a division]. It is extant. Its type is Polymixiidae.

It was assigned to Teleosteomorpha by van der Laan (2019).

Subtaxa
Polymixiidae (syn. Omosomopsidae) (type family), Polymixiiformes
Entered
by P. Novack-Gottshall on 2025-07-23; modified by P. Novack-Gottshall on 2025-08-13

Synonymy list
YearName and author
2017Polymixiipterygii Betancur-R et al.
2019Polymixiipterygii van der Laan p. 73

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classOsteichthyes
subclassActinopterygii()
infraclassActinopteri()
—Teleosteomorpha
—PolymixiipterygiiBetancur-R et al. 2017
—PolymixiipterygiiBetancur-R et al. 2017

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.

Unr. Polymixiipterygii Betancur-R et al. 2017
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Fm. Polymixiidae Gill 1862
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G. †Berycopsia Radovcic 1975
G. †Berycopsis Agassiz 1850
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Berycopsis elegans Dixon 1850
†Berycopsis germanus Agassiz 1837
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Invalid names: Platycormus oblongus von der Marck 1863 [synonym]
†Berycopsis paucoradius Dietze 2009
†Berycopsis pulcher Bannikov and Bacchia 2005
Invalid names: Platycormus von der Marck 1858 [synonym]
G. †Dalmatichthys Radovcic 1975
G. †Homonotichthys Whitley 1933
+
Invalid names: Homonotus Agassiz 1850 [replaced], Stenostoma Agassiz 1850 [replaced]
G. †Omosomopsis Gaudant 1978
G. †Parapolymixia David 1946
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G. Polymixia Lowe 1836
G. †Pycnosterinx Heckel 1849
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†Pycnosterinx discoides Heckel 1849
†Pycnosterinx dorsalis Pictet 1850
†Pycnosterinx dubius Davis 1887
†Pycnosterinx elongatus Pictet and Humbert 1866
†Pycnosterinx gracilis Davis 1887
†Pycnosterinx latus Davis 1887
†Pycnosterinx niger Costa 1857
†Pycnosterinx russeggerii Heckel 1849
+
Invalid names: Imogaster auratus Costa 1857 [synonym]
Invalid names: Imogaster Costa 1857 [synonym]
Invalid names: Omosomopsidae Gaudant 1978 [synonym]
Or. Polymixiiformes [beardfish]
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Fm. †Boreiohydriidae Murray and Cumbaa 2013
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G. †Boreiohydrias Murray and Cumbaa 2013
+
†Boreiohydrias dayi Murray and Cumbaa 2013
G. †Cumbaaichthys Murray 2016 [beardfish]
+
†Cumbaaichthys oxyrhynchus Murray 2016 [beardfish]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: planktonicp
Diet: suspension feederp
Created: 2009-07-20 21:50:54
Modified: 2009-07-20 23:50:54
Source: c = class, subp = subphylum, p = phylum
References: Carroll 1988, Hendy et al. 2009, Bambach et al. 2007, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Late/Upper Cenomanian to the top of the Langhian or 100.50000 to 13.82000 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma

Collections (48 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cenomanian - Middle Cenomanian100.5 - 93.9United Kingdom (England) Berycopsis elegans (118407)
Late/Upper Cenomanian100.5 - 93.9Italy Polymixiiformes indet. (214600)
Late/Upper Cenomanian100.5 - 93.9Lebanon Berycopsis pulcher (69119 221172) Pycnosterinx dubius (221158)
Middle Cenomanian - Late/Upper Cenomanian100.5 - 93.9United Kingdom (England) Berycopsis elegans (221373) Homonotus dorsalis (222446) Homonotus rotundus (222449 222450) Stenostoma pulchella (221377)
Cenomanian - Turonian100.5 - 89.8United Kingdom (England) Berycopsis elegans, Homonotichthys dorsalis, Homonotichthys rotundus, Homonotichthys pulchellus (238510)
Early/Lower Turonian93.9 - 89.8United Kingdom (England) Berycopsis elegans (221374)
Early/Lower Turonian93.9 - 89.8Canada (Northwest Territories) Boreiohydrias dayi, Cumbaaichthys oxyrhynchus (220881)
Early/Lower Turonian - Middle Turonian93.9 - 89.8United Kingdom (England) Homonotus dorsalis (222441)
Middle Turonian - Late/Upper Turonian93.9 - 89.8United Kingdom (England) Berycopsis elegans (221375 221376)
Late/Upper Coniacian89.8 - 85.7United Kingdom (England) Homonotus dorsalis (222444)
Late/Upper Coniacian - Early/Lower Santonian89.8 - 83.6United Kingdom (England) Homonotus dorsalis (222442 222443 222445)
Late/Upper Santonian85.7 - 83.6Lebanon Imogaster auratus, Beryx niger (221191) Pycnosterinx discoides (221187) Pycnosterinx discoides, Imogaster auratus, Pycnosterinx gracilis, Homonotus pulcher, Pycnosterinx latus (170327) Pycnosterinx discoides, Pycnosterinx elongatus (221226) Pycnosterinx russeggerii, Pycnosterinx discoides (221189)
Santonian85.7 - 83.6United Kingdom (England) Homonotus dorsalis (222447)
Early/Lower Campanian83.6 - 72.2United Kingdom (England) Homonotus dorsalis (159324)
Late/Upper Campanian83.6 - 72.2Germany Platycormus germanus (221711 221714 221720) Platycormus gibbosus (221718) Platycormus oblongus (221713) Platycormus oblongus, Platycormus germanus, Berycopsis paucoradius (213198)
Late/Upper Campanian83.6 - 72.2Israel (Southern District) Polymixia sp. (92192)
Maastrichtian72.2 - 66.0USA (Maryland) Polymixiidae indet. (127085)
Lutetian48.07 - 41.03France Polymixia sp. (188957 188958 188960)
Middle Eocene - Late/Upper Eocene48.07 - 33.9USA (California) Parapolymixia californica (190998 191000 191003 191006 191008 191009 191014)
Late/Upper Eocene37.71 - 33.9USA (Alaska) Parapolymixia californica (189957)
Langhian15.98 - 13.82France Polymixia lowei (219197)
Middle Miocene15.98 - 11.63Japan (Aichi) Polymixia japonica (161449)