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Madrynornis mirandus
Taxonomy
Madrynornis mirandus was named by Acosta Hospitaleche et al. (2007). Its type specimen is MEF-PV 100, a skeleton (nearly complete and articulated skeleton with well-preserved feather impressions), and it is a 3D body fossil. Its type locality is Playa Villarino, which is in a Tortonian marine horizon in the Puerto Madryn Formation of Argentina.
Synonymy list
Year | Name and author |
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2007 | Madrynornis mirandus Acosta Hospitaleche et al. p. 301 figs. Figs. 2-7 |
2008 | Madrynornis mirandus Acosta Hospitaleche and Tambussi p. 123 |
2018 | Madrynornis mirandus Degrange et al. p. 1 |
2023 | Madrynornis mirandus Tambussi et al. p. 273 |
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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.
†Madrynornis mirandus Acosta Hospitaleche et al. 2007
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Diagnosis
Reference | Diagnosis | |
---|---|---|
C. Acosta Hospitaleche and C. Tambussi 2008 | Crista occipitalis transversa expanded
into posterolaterally directed wings (not developed in Pygo- scelis), fossa temporalis more triangular and deeper than in Paraptenodytes, processus postorbitalis slender and longer than in Spheniscus, arcus jugalis slightly curved compared to that in Eudyptes and Pygoscelis, interorbital region nar- rower than in Spheniscus and Eudyptes. Sulcus glandulae nasalis without an external edge as in Spheniscus and Par- aptenodytes (edge present in Pygoscelis); lamina parasphe- noidalis broader than in all living species. Ramus mandibiularis straight with the fossa retroarticularis longer than in Paraptenodytes and Spheniscus, and extending beyond the fossa articularis quadratica. |