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Pseudobeaconia bracaccinii
Taxonomy
Pseudobeaconia bracaccinii was named by Bordas (1944). Its type specimen is MACN 14868, a skeleton (complete fish skeleton), and it is a compression fossil. Its type locality is Quebrada de Santa Clara, which is in a Triassic fluvial-lacustrine siliciclastic in the Santa Clara Abajo Formation of Argentina. It is the type species of Pseudobeaconia.
Synonymy list
Year | Name and author |
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1944 | Pseudobeaconia bracaccinii Bordas |
2008 | Pseudobeaconia bracaccinii López-Arbarello and Zavattieri p. 1033 |
2010 | Pseudobeaconia bracaccinii López-Arbarello et al. pp. 256-258 figs. Text-figure 6A |
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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.
†Pseudobeaconia bracaccinii Bordas 1944
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Diagnosis
Reference | Diagnosis | |
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A. López-Arbarello and A. M. Zavattieri 2008 | An actinopterygian distinguished by the following combination of primitive and advanced characters: body depth three times in SL; anterior and posterior dermopterotics present; anterior supraorbital does not extend beyond the anterior border of the parietal; short infraorbital process of preoperculum; pectoral fin with one stout basal fulcrum and nine rays; posterior half of dorsal fin opposite to anterior half of anal fin; dorsal fin with three basal fulcra and 16 rays; anal fin with two basal fulcra; caudal fin with nine dorsal and three ventral basal fulcra; seven dorsal and four ventral precaudal median scutes; dorsal ridge with more than ten spine-like scales, starting almost immediately behind the skull. | |
A. López-Arbarello et al. 2010 | A species of Pseudobeaconia distinguished by the following combination of primitive and advanced characters: body depth three times in SL; anterior and posterior dermopterotics present; anterior supraorbital does not extend beyond the anterior border of the
frontal; short infraorbital process of preoperculum; pectoral fin with one stout basal fulcrum and nine rays; posterior half of dorsal fin opposite to anterior half of anal fin; dorsal fin with three basal fulcra and 16 rays; anal fin with two basal fulcra; caudal fin with nine dorsal and three ventral basal fulcra; seven dorsal and four ventral precaudal median scutes; dorsal ridge with more than ten spine-like scales, starting almost immediately behind the skull (from López-Arbarello and Zavattieri 2008). |