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Portentosoceros

Osteichthyes - Perciformes

Synonymy list
YearName and author
2021Portentosoceros Nazarkin and Bannikov p. 2

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassActinopterygii()
RankNameAuthor
infraclassActinopteri()
—Teleosteomorpha
—Acanthopterygii
—Percomorphaceae
—EupercariaBetancur et al. 2013
orderPerciformesBleeker 1859
suborderPercoidei(Bleeker 1859)
genusPortentosoceros

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. †Portentosoceros Nazarkin and Bannikov 2021
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†Portentosoceros sakhalinicus Gretchina 1975
Diagnosis
ReferenceDiagnosis
M. V. Nazarkin and A. F. Bannikov 2021Body moderately deep and laterally compressed. Snout short, with straight upper margin. Only supraoccipital and cleithrum bear superficial relief resembling twisted ropes; super- ficial bony tubercles absent. Three supraneurals. Spinous dorsal fin higher, and its base longer than that of soft dorsal fin. Anterior edge of dorsal-fin spines smooth basally. Vertebrae 25–27 (10–11 + 15–17); dorsal fin spines IX–XI; anal fin spines IV–VI. Caudal skeleton with five free hypurals and short neural spine of the second preural centrum. Scales, apparently, cycloid, thin, and not rigid or scute-like. Differs from all extant pentacerotids in having three vs two supraneurals, and lacking the rugosity and bony tubercles on the superficial bones of head and of pectoral girdle. Although total number of vertebrae in †Portentosoceros is similar to that of Recent armorheads, the number of abdominal vertebrae is smaller, and the number of caudal vertebrae greater than corresponding values of any Recent genus (Table 1).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-20 21:38:14
Modified: 2009-07-20 23:38:14
Source: o = order, subp = subphylum
References: Kiessling 2004, Carroll 1988, Hendy et al. 2009

Age range: base of the Serravallian to the top of the Tortonian or 13.82000 to 7.24600 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Serravallian - Tortonian13.82 - 7.246Russian Federation (Sakhalin) Pentaceros sakhalinicus (207771)