Template:Moreno & Mercerat, 1891
- Date of publication: 1891
- Palaeospheniscus [p. 16, 29]
- Palaeospheniscus antarcticus [p. 16, 30]
- Palaeospheniscus patagonicus [p. 16, 31]
- Palaeospheniscus menzbieri [p. 17, 31]
- Palaeospheniscus bergi [p. 18, 34]
- Phalacrocorax pampeanus [p. 19, 35]
- Palaeociconia cristata [p. 19, 36]
- Stereornithes [p. 20, 37]
- Brontornithidae [p. 20, 37]
- Brontornis [p. 20, 37]
- Brontornis burmeisteri [p. 20, 37]
- Rostrornis [p. 20, 40]
- Rostrornis floweri [p. 20, 40]
- Stereornithidae [p. 21, 44]
- Stereornis [p. 21, 45]
- Stereornis rollieri [p. 21, 45]
- Stereornis gaudryi [p. 21, 47]
- Mesembriornis studeri [p. 21, 48]
- Mesembriornis quatrefragesi [p. 22, 50]
- Patagornis [p. 23, 55]
- Patagornis marshi [p. 23, 56]
- Patagornis lemoinei [p. 23, 58]
- Patagornis bachmanni [p. 24, 58]
- Dryornithidae [p. 24, 58]
- Dryornis [p. 24, 59]
- Dryornis pampeanus [p. 24, 59]
- Darwinornithidae [p. 24, 60]
- Darwinornis [p. 24, 60]
- Darwinornis copei [p. 24, 60]
- Darwinornis zitteli [p. 25, 63] [="Darwinornis zittelli"]
- Darwinornis socialis [p. 25, 63]
- Owenornis [p. 25, 64]
- Owenornis affinis [p. 25, 64]
- Owenornis lydekkeri [p. 25, 64]
- Lagopterus [p. 25, 66]
- Lagopterus minutus [p. 25, 66]
- Foetopterus [p. 26, 66]
- Foetopterus ambiguus [p. 26, 67]
- Psilopterus [p. 26, 67]
- Psilopterus communis [p. 26, 68]
- Psilopterus australis [p. 26, 68]
- Psilopterus intermedius [p. 26, 68]
- Sarcorhamphus fossilis [p. 27, 69]
- Protorhea [p. 27, 69]
- Protorhea azarae [p. 27, 69]
- Rhea subpampeana [p. 27, 70]
- Rhea pampeana [p. 27, 70]
- Rhea fossilis [p. 28, 71]