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Belonostomus lamarquensis
Taxonomy
Belonostomus lamarquensis was named by Bogan et al. (2011). Its type specimen is MML 454, a partial skull (Incomplete neurocranium), and it is a 3D body fossil. Its type locality is Cerro Tortugas, which is in a Maastrichtian/Maastrichtian fluvial sandstone/siltstone in the Allen Formation of Argentina.
Sister species lacking formal opinion data
Entered
by F. Aspromonte (authorized by E. Vlachos) on 2023-10-31; modified by M. Carrano on 2025-06-09
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Belonostomus lamarquensis Bogan et al. p. 237 |
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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.
†Belonostomus lamarquensis Bogan et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Bogan et al. 2011 | A large sized Belonostomus differing from the other species of the genus by having its flank scales divided in an anterior region with a smooth surface and a posterior
region bearing a series of numerous and closely spaced subparallel ridges that end in a deeply crenulated posterior margin, the two regions being separated by a conspicuous vertical groove. Long predentary bearing large teeth in its median gutter and small teeth on its lateral margins. Ganoid layer of the dermal bones ornamented with ridges and tubercles. Frontal and parietal fused together. Deep irregular interdigitations between the two fronto-parietals. Dermopterotic and supratemporal fused together. Endocranial bones of the braincase completely fused, except the basisphenoid. |