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Imocetus piscatus

Mammalia - Cetacea - Ziphiidae

Taxonomy
Imocetus piscatus was named by Bianucci et al. (2013). Its type specimen is ML 1359, a partial skull (rostrum and anterior facial area), and it is a 3D body fossil. Its type locality is Nazare Canyon, which is in a Messinian/Zanclean offshore shelf phosphorite in Portugal.

Synonymy list
YearName and author
2013Imocetus piscatus Bianucci et al. p. 130 figs. Figs. 14-17
2016Imocetus piscatus Ramassamy p. 398 figs. Figure 17

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
Mammaliaformes
classMammalia
RankNameAuthor
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
Whippomorpha
orderCetacea
Pelagiceti
Neoceti
suborderOdontoceti
Amblyoccipita
Stegoceti
familyZiphiidae
Messapicetiformes
genusImocetus
speciespiscatus

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.

Imocetus piscatus Bianucci et al. 2013
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Diagnosis
ReferenceDiagnosis
G. Bianucci et al. 2013Imocetus piscatus n. gen., n. sp. differs from all other ziphiids in a wide and anteroposteriorly elongated facial depression laterally margined by acute longitudinal maxillary crests, a rostral maxillary crest forming a posterodorsally directed spur, and premaxillary foramen located very posterior to the level of the antorbital notch. Among other ziphiines it further differs from Izikoziphius and Ziphius in the medial fusion of the premaxillae closing the mesorostral groove; it shares with Globicetus n. gen. and Tusciziphius the anterior part of the nasal contacting the premaxillary crest, and the extreme ossification and fusion of the vertex elements, but it differs from Globicetus n. gen. in lacking a large spherical medial premaxillary rostral prominence and in the presence of a distinct antorbital notch. It differs from Tusciziphius in the less transversally expanded vertex (lower width between the premaxillary crests and lower distance between the maxillae posterior to the vertex), and in the posterolateral direction of the right premaxillary crest. It further differs from the possible ziphiine Caviziphius in the less excavated premaxillary sac fossae.
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marine, freshwatersubo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: piscivoref
Diet 2: carnivoref
Reproduction: viviparoussubo
Created: 2005-06-08 10:11:10
Modified: 2005-06-08 12:11:10
Source: f = family, subo = suborder, o = order
References: Nowak 1991, Uhen 2004

Age range: base of the Messinian to the top of the Zanclean or 7.24600 to 3.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Messinian - Zanclean7.246 - 3.6Portugal Imocetus piscatus (type locality: 141841)