Ihlengesi Bianucci, Lambert, and Post, 2007

Bianucci, Giovanni, Sielfeld, Walter, Olguin, Nicole A. & Guzmán, Guillermo, 2023, A new diminutive fossil ziphiid from the deep-sea floor off northern Chile and some remarks on the body size evolution and palaeobiogeography of the beaked whales, Acta Palaeontologica Polonica 68 (3), pp. 477-491 : 479

publication ID

https://doi.org/10.4202/app.01076.2023

DOI

https://doi.org/10.5281/zenodo.15185416

persistent identifier

https://treatment.plazi.org/id/03918788-1E03-FA3D-583A-F922FDE7FD12

treatment provided by

Felipe

scientific name

Ihlengesi Bianucci, Lambert, and Post, 2007
status

 

Genus Ihlengesi Bianucci, Lambert, and Post, 2007

Type species: Ihlengesi saldanhae Bianucci, Lambert, and Post, 2007 , by original designation; from the sea floor off Saldanha Bay , South Africa; age unknown.

Species included: Type species and Ihlengesi changoensis sp. nov.

Emended diagnosis.— Ihlengesi differs from all other Hyperoodontinae for the following unique combination of characters: narrow rostrum in dorsal view; presence of a distinct maxillary tubercle and a wide and shallow prominental notch anteromedial to the antorbital notch; dorsal infraorbital foramen close to the prominental notch at the rostrum base; premaxillary foramen distinctly posterior to the antorbital notch; roughly flat dorsal surface of the preorbital area without distinct maxillary crest; moderate elevation of the vertex less than in the other hyperoodontines but Khoikhoicetus ); ascending process of the premaxilla in lateral view concave with posterodorsal portion partly overhanging the bony nares; transverse distance between the lateral margins of the premaxillary crests less than in the other hyperoodontines; wide space between the premaxillary crests (greater than in Mesoplodon and Hyperoodon ); inclusion of the nasal into the premaxillary crest with the at least the left nasal covering about half the length of the median margin of the crest; deep anteromedian excavation of the nasals.

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Cetacea

Family

Hyperoodontidae

SubFamily

Hyperoodontinae

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