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Pseudobeaconia

Actinopteri - Perleidiformes - Pseudobeaconiidae

Taxonomy
Pseudobeaconia was named by Bordas (1944). Its type is Pseudobeaconia bracaccinii. It is the type genus of Pseudobeaconiidae. It was considered monophyletic by López-Arbarello and Zavattieri (2008).

It was assigned to Pseudobeaconiidae by López-Arbarello and Zavattieri (2008) and López-Arbarello et al. (2010).

Synonymy list
YearName and author
1944Pseudobeaconia Bordas
2008Pseudobeaconia López-Arbarello and Zavattieri p. 1031 figs. Text-figure 18
2010Pseudobeaconia López-Arbarello et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
Osteichthyes()
superclassActinopterygii(Cope 1887)
classActinopteri()
subclassChondrostei(Müller 1844)
orderPerleidiformesBerg 1937
familyPseudobeaconiidae
genusPseudobeaconiaBordas 1944

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.

Diagnosis
ReferenceDiagnosis
A. López-Arbarello and A. M. Zavattieri 2008Among the following combination of characters, an asterisk (*) indicates synapomorphies: fusiform actinopterygians up to 50 mm SL; body depth 2.5–3.5· in SL; head length 0.3 SL; skull with relatively thin, unornamented bones*; wide skull roof bones; postparietals
about half the length of parietals*; supraorbital sensory canal do not enter postparietals; small postrostral; nasals wider dorsally than ventrally, do not articulate with antorbital*; suborbitals absent*; small antorbital and very slender infraorbital bones; maxilla not expanded posteroventrally*; slender lower jaw*; sharp conical teeth on maxillae, premaxillae, and lower jaws; suboperculum
only slightly larger than operculum, both roughly oblong in shape, approximately as deep as long; three or four branchiostegal rays; cleithrum small with approximately equally large dorsal and anteroventral portions; dorsal fin slightly larger than anal fin; anal fin with 14 rays; caudal fin with 20 rays, four of which are in epaxial position; slender basal and fringing fulcra on unpaired fins; two preanal scutes.
A. López-Arbarello et al. 2010Among the following combination of characters, an asterisk (*) indicates synapomorphies: fusiform pseudobeaconiids up to 50 mm SL; body depth 2.5– 3.5 · in SL; head length 0.3 SL; skull with relatively thin, unornamented bones*; wide skull roof bones; parietals
about half the length of frontals*; supraorbital sensory canal does not enter parietals; small postrostral; nasals wider dorsally than ventrally, do not articulate with antorbital*; suborbitals absent*; small antorbital and very slender infraorbital bones; maxilla not expanded posteroventrally*; slender lower jaw*; sharp conical teeth on
maxillae, premaxillae, and lower jaws; suboperculum only slightly larger than operculum, both roughly oblong in shape, approximately as deep as long; three or four branchiostegal rays; cleithrum small with approximately equally large dorsal and anteroventral portions; dorsal fin slightly larger than anal fin; anal fin with 14 rays; caudal
fin with 20 rays, four of which are in epaxial position; slender basal and fringing fulcra on unpaired fins; two preanal scutes (from López-Arbarello and Zavattieri 2008).