Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Subordo: Cynodontia
Infraordo: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Cladus: Euungulata
Ordo: Artiodactyla
Cladus: Artiofabula
Cladus: Cetruminantia
Subordo: Whippomorpha
Infraordo: Cetacea
Cladus: Neoceti
Parvordo: Mysticeti
Familia: Balaenopteridae
Genus: †Archaebalaenoptera
Species:
A. castriarquatiName
Archaebalaenoptera Bisconti, 2007
References
cited sources
Bisconti, M. 2007: A new basal balaenopterid from the Early Pliocene of northern Italy. Palaeontology, 50: 1103–1122. DOI: 10.1111/j.1475-4983.2007.00696.x
Archaebalaenoptera is a genus of extinct rorqual known from late Miocene to Pliocene-age marine deposits of the Netherlands, northern Italy, and Peru.
Classification
The type species, A. castriarquati, was discovered in 1983 from the sediments of the late Pliocene (Piacenzian) Castell’Arquato Formation in northern Italy.[2] A cladistic analysis of Balaenopteridae recovered Archaebalaenoptera as one of if not the most primitive rorqual.[2] A second Archaebalaenoptera species, A. liesselensis, is known from the late Miocene (late Tortonian) Breda Formation near Liessel, in the Netherlands while an unnamed species is known from Peru. A. liesselensis differs from the type species and the unnamed Peruvian species in being larger.[3]
A reconstruction of the primitive rorqual A. liesselensis
Paleobiology
The primitive morphology of the jaw suggests that Archaebalaenoptera probably was not capable of ram feeding like living rorquals and humpback whales.[2]
References
Bisconti M, Ochoa D, Urbina M, Salas-Gismondi R, 2022. Archaebalaenoptera eusebioi, a new rorqual from the late Miocene of Peru (Cetacea, Mysticeti, Balaenopteridae) and its impact in reconstructing body size evolution, ecomorphology and palaeobiogeography of Balaenopteridae. Journal of Systematic Palaeontology https://doi.org/10.1080/14772019.2021.2017363
M. Bisconti. 2007. A new basal balaenopterid whale from the Pliocene of northern Italy. Palaeontology 50(5):1103-1122
Bisconti M, Munsterman DK, Fraaije RHB, Bosselaers MEJ, Post K. 2020. A new species of rorqual whale (Cetacea, Mysticeti, Balaenopteridae) from the Late Miocene of the Southern North Sea Basin and the role of the North Atlantic in the paleobiogeography of Archaebalaenoptera. PeerJ 8:e8315 https://doi.org/10.7717/peerj.8315
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