PBDB Taxon

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Pseudobeaconiidae

Osteichthyes - Louwoichthyiformes - Pseudobeaconiidae

Taxonomy

Pseudobeaconiidae was named by López-Arbarello and Zavattieri (2008). It is not extant. Its type is Pseudobeaconia. It was considered monophyletic by López-Arbarello and Zavattieri (2008).

It was assigned to Perleidiformes by López-Arbarello and Zavattieri (2008), López-Arbarello et al. (2010); and to Louwoichthyiformes by Xu (2020).

Subtaxa

Amblypterus lujanensis, Anatoia, Anatoia debilis, Anatoia semiovata, Caminchaia, Caminchaia draghii, Echentaia, Echentaia obesa, Mendocinichthys (syn. Mendocinia), Pasambaya, Pasambaya tellecheai, Pseudobeaconia (type genus)

Synonyms

Anatoia is a genus.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Anatoia semiovata was named by Rusconi (1946). It is a compression fossil. Its type locality is Yacimiento 1, south-western side of the Cerro El Mastil, which is in a Norian terrestrial siliciclastic in the Potrerillos Formation of Argentina.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Anatoia debilis was named by Rusconi (1946). It is a compression fossil. Its type locality is Yacimiento 1, south-western side of the Cerro El Mastil, which is in a Norian terrestrial siliciclastic in the Potrerillos Formation of Argentina.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Pasambaya was named by López-Arbarello et al. (2010).

It was considered a nomen dubium by López-Arbarello et al. (2010).
Pasambaya tellecheai was named by Rusconi (1946). Its type specimen is MCNAM-PV 305, a set of postcrania, and it is a compression fossil.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Caminchaia was named by López-Arbarello et al. (2010).

It was considered a nomen dubium by López-Arbarello et al. (2010).
Caminchaia draghii was named by Rusconi (1946). It is a compression fossil. Its type locality is Yacimiento 1, south-western side of the Cerro El Mastil, which is in a Norian terrestrial siliciclastic in the Potrerillos Formation of Argentina.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Echentaia was named by López-Arbarello et al. (2010).

It was considered a nomen dubium by López-Arbarello et al. (2010).
Echentaia obesa was named by Rusconi (1946). Its type specimen is MCNAM-PV 215 and is a compression fossil. Its type locality is Yacimiento 1, south-western side of the Cerro El Mastil, which is in a Norian terrestrial siliciclastic in the Potrerillos Formation of Argentina.

It was considered a nomen dubium by López-Arbarello et al. (2010).
Amblypterus lujanensis was named by Rusconi (1949). Its type specimen is MCNAM-PV 2767 and is a compression fossil.

It was considered a nomen dubium by López-Arbarello et al. (2010).

Synonymy list

Year	Name and author
1946	Anatoia debilis Rusconi
1946	Anatoia semiovata Rusconi
1946	Caminchaia draghii Rusconi
1946	Echentaia obesa Rusconi
1946	Pasambaya tellecheai Rusconi
1949	Amblypterus lujanensis Rusconi
2008	Pseudobeaconiidae López-Arbarello and Zavattieri p. 1031
2010	Caminchaia López-Arbarello et al.
2010	Echentaia López-Arbarello et al.
2010	Pasambaya López-Arbarello et al.
2010	Pseudobeaconiidae López-Arbarello et al. pp. 255-256
2020	Pseudobeaconiidae Xu p. 377

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata

Rank	Name	Author
class	Osteichthyes
subclass	Actinopterygii	()
infraclass	Actinopteri	()
—	Neopterygii	Regan 1923
order	Louwoichthyiformes
family	Pseudobeaconiidae
family	Pseudobeaconiidae

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.

Fm. †Pseudobeaconiidae López-Arbarello and Zavattieri 2008

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G. †Mendocinichthys Whitley 1953

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†Mendocinichthys brevis Bordas 1944

Invalid names: Mendocinia Bordas 1944 [replaced]

G. †Pseudobeaconia Bordas 1944

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†Pseudobeaconia bracaccinii Bordas 1944

†Pseudobeaconia celestae López-Arbarello and Zavattieri 2008

†Pseudobeaconia cuyana Bordas 1944

†Pseudobeaconia elegans Bordas 1944

Invalid names: Amblypterus lujanensis Rusconi 1949 [nomen dubium], Anatoia [nomen dubium], Anatoia debilis Rusconi 1946 [nomen dubium], Anatoia semiovata Rusconi 1946 [nomen dubium], Caminchaia López-Arbarello et al. 2010 [nomen dubium], Caminchaia draghii Rusconi 1946 [nomen dubium], Echentaia López-Arbarello et al. 2010 [nomen dubium], Echentaia obesa Rusconi 1946 [nomen dubium], Pasambaya López-Arbarello et al. 2010 [nomen dubium], Pasambaya tellecheai Rusconi 1946 [nomen dubium]

Diagnosis

Reference	Diagnosis
A. López-Arbarello and A. M. Zavattieri 2008	Among the following combination of characters, an asterisk () indicates synapomorphies: small actinopterygians up to 120 mm in total length (TL); body depth 2–3.5· in standard length (SL; the length of a fish measured from the tip of the snout to the base of the caudal fin); pelvic fins closer to anal than to pectoral fins; dorsal and anal fins of similar size; incomplete dorsal ridge of spine-like scales between skull and dorsal fin; a series of median scutes on dorsal and ventral midlines from end of dorsal to caudal fin and from end of anal to caudal fin respectively; flank scales approximately three times deeper than long; scales with straight posterior border, elevated central region and marginal concentric ridges of ganoine*.
A. López-Arbarello et al. 2010	Among the following combination of characters, an asterisk () indicates synapomorphies: small perleidiform fishes up to 120 mm in total length (TL); body depth 2–3.5 · in standard length (SL; the length of a fish measured from the tip of the snout to the base of the caudal fin); pelvic fins closer to anal than to pectoral fins; dorsal and anal fins of similar size; incomplete dorsal ridge of spine-like scales between skull and dorsal fin; a series of median scutes on dorsal and ventral midlines from end of dorsal to caudal fin and from end of anal to caudal fin, respectively; flank scales approximately three times deeper than long; scales with straight posterior border, elevated central region and marginal concentric ridges of ganoine* (from López-Arbarello and Zavattieri 2008).

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

marinesubp

Locomotion:

actively mobilec

Created:

2009-07-20 21:50:54

Modified:

2009-07-20 23:50:54

Source: c = class, subp = subphylum

References: Hendy et al. 2009, Carroll 1988, Kiessling 2004

Age range: Norian or 227.30000 to 205.70000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Triassic	237.0 - 201.4	Argentina (Mendoza)	Pseudobeaconia bracaccinii, Pseudobeaconia elegans, Pseudobeaconia cuyana (117881) Pseudobeaconia celestae (143295) Pseudobeaconia celestae, Pasambaya tellecheai (117883)
Norian	227.3 - 205.7	Argentina (Mendoza)	Amblypterus lujanensis (117890) Anatoia semiovata, Anatoia debilis, Caminchaia draghii, Echentaia obesa (117936) Mendocinia brevis (117884)