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Aglaocetus longifrons

Mammalia - Cetacea

Taxonomy
Idiocetus longifrons was named by Van Beneden (1880) [no type specimen listed in Van Beneden (1880); lectotype after Steeman (2010)]. Its type specimen is lectotype IRScNB CtM 719a-c/769, a partial skull (skull fragment, right periotic, right tympanic), and it is a 3D body fossil. Its type locality is Deurne (Fort 1), Antwerpen Sands Member, which is in a Langhian/Serravallian open shallow subtidal sandstone in the Berchem Formation of Belgium.

It was recombined as Plesiocetus longifrons by Van Deinse (1931); it was recombined as Aglaocetus longifrons by Steeman (2010).

Synonymy list
YearName and author
1880Idiocetus longifrons Van Beneden p. 24
1898Idiocetus longifrons Trouessart p. 1076
1904Idiocetus longifrons Trouessart p. 782
1931Plesiocetus longifrons Van Deinse p. 143
2007Idiocetus longifrons Bisconti p. 1109
2010Aglaocetus longifrons Steeman p. 68

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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
—Theriamorpha(Rowe 1993)
RankNameAuthor
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderMysticeti
—Chaeomysticeti()
—Plicogulae
superfamilyBalaenopteroideaGray 1868
genusAglaocetus
specieslongifrons()

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.

†Aglaocetus longifrons Van Beneden 1880
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatitesubo
Form: roller-shapedo
Ontogeny: modification of partso
Environment: marinesubo
Locomotion: actively mobileo
Life habit: aquaticsubo
Depth habitat: surfaceo
Diet: carnivoresubo
Diet 2: suspension feedersubo
Reproduction: viviparouso
Created: 2005-03-06 14:20:41
Modified: 2005-03-06 16:34:40
Source: subo = suborder, o = order
Reference: Uhen 2004

Age range: Serravallian or 13.82000 to 11.62000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Langhian - Serravallian15.97 - 11.62Belgium Idiocetus longifrons (type locality: 96462)
Serravallian13.82 - 11.62Netherlands Plesiocetus longifrons (75152)