A Pleistocene freshwater ichthyofaunal assemblage from central Argentina: What kind of fishes lived in the Pampean lagoons before the extinction of the megafauna?
Fig 5
Corydoras sp. A-E, pectoral spines, A (MLP 04-V-2-455), B (MLP 04-V-2-488), C-E (MPH-P 915) in A,B,D, anterior; C, posterior; and E, lateral views; F, isolated fossil bones found after sieving of the sediment; G-I, cleithrum (MLP 04-V-2-364); J, opercle (MPH-P 916); K, parieto-supraoccipital bone (MLP 04-V-2-471) in dorsal view; L-M frontals L, (CFA-IC-9218) comparative extant Corydoras paleatus and M, (MLP 04-V-2-360) Corydoras sp. Scale bar: 5 mm (A-E, G-M) and 10 mm (F). Abbreviations: ac: articular cavity; ap, anterior process; cf, cranial fontanelle; dp, dorsal process; fa: facet for articulation; klo: keel for insertion of levator operculi; pde, posterior denticles; psoc, posterior process of parieto-supraoccipital; pl: posterior lamina laterally; vp, ventral process.