Rahul Sharma (Editor)

Balaenoptera

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Kingdom  Animalia
Infraorder  Cetacea
Scientific name  Balaenoptera
Phylum  Chordata
Rank  Genus
Order  Artiodactyla
Family  Balaenopteridae
Higher classification  Balaenopterinae
Length  Blue whale: 25 m
Balaenoptera greaterancestorscomwpcontentuploads201306bl
Lifespan  Blue whale: 80 – 110 years
Lower classifications  Blue whale, Fin whale, Sei whale, Common minke whale, Bryde's whale

Balaenoptera musculus abz


Balaenoptera, from the Latin balaena (whale) and pteron (fin), is a genus of Balaenopteridae, the rorquals, and contains eight extant species. The species Balaenoptera omurai was published in 2003. Balaenoptera is a diverse genus and comprises all but one of the extant species in its family - the other species is the humpback whale, Megaptera novaeangliae.

Contents

Balaenoptera Blue whale Balaenoptera musculus DinoAnimalscom

This genus is known in the fossil records from the Neogene to the Quaternary (age range: from 13.65 to 0.0 million years ago).

Balaenoptera FileRorcual comn Balaenoptera physalusjpg Wikimedia Commons

Balaenoptera omurai omura s whale


Taxonomy

Balaenoptera Blue Whale Balaenoptera musculus Tony Wu Underwater Photography
  • Genus Balaenoptera
  • Balaenoptera acutorostrata, common minke whale
  • Balaenoptera bertae (Pliocene, United States)
  • Balaenoptera bonaerensis, Antarctic minke whale
  • Balaenoptera borealis, Sei whale
  • Balaenoptera brydei, Bryde's whale
  • Balaenoptera cephalus
  • Balaenoptera colcloughi (Pliocene, USA)
  • Balaenoptera davidsonii (Pliocene, USA)
  • Balaenoptera edeni, Eden's whale
  • Balaenoptera musculus, blue whale
  • Balaenoptera omurai, Omura's whale
  • Balaenoptera physalus, fin whale
  • Balaenoptera siberi (Pliocene, Peru)
  • Balaenoptera sursiplana
  • Balaenoptera taiwanica
  • Fossil species

    Balaenoptera Blue Whale Balaenoptera musculus Endangered YouTube

    Many fossil Balaenoptera species have been described. Some (namely "B. borealina", "B. definata", "B. emarginata", "B. gibbosa", "B. minutis", "B. rostratella", "B. sibbaldina", and "B. similis") are either nondiagnostic, highly fragmentary, or had no holotype specimen named, hence are considered nomina dubia. The species "Megaptera" hubachi may in fact be a species of Balaenoptera, and is certainly not a member of Megaptera. The valid fossil species of Balaenoptera are:

    †Balaenoptera bertae

    B. bertae is a relatively small species from the Upper Miocene to Upper Pliocene of California.

    †Balaenoptera cephalus

    Balaenoptera Stock Illustration Blue whale Balaenoptera musculus

    B. cephalus was originally thought to be a species of Eschrichtius (gray whales) or Cetotherium, but more recent analysis shows it to be a member of Balaenoptera.

    †Balaenoptera colcloughi

    B. colcloughi is known from four specimens, including four skulls and some postcranial remains, found at the San Diego Formation. It was a close relative of Megaptera novaeangliae (the humpback whale), B. siberi, and B. physalus (the fin whale).

    †"Balaenoptera" cortesii

    "B." cortesii is a small species; it probably represents a distinct, unnamed genus of balaenopterid. A larger variant, called "B." cortesii var. portisi is probably also a distinct genus, and may be the same genus or species as Cetotheriophanes capellinii. The species "B. floridana" is indistinguishable from "B." cortesii var. portisi.

    †Balaenoptera davidsonii

    Like B. cephalus, B. davidsonii was originally classified under Eschrichtius, but it has since been moved to Balaenoptera. It was native to the Pliocene San Diego Formation. The only known fossil of B. davidsonii is a fragment of the left dentary.

    †"Balaenoptera" ryani

    "B" ryani represents genus of basal balaenopterid distinct from Balaenoptera.

    †Balaenoptera siberi

    B. siberi is known from two complete skeletons, its affinity with the genus Balaenoptera has been questioned.

    †Balaenoptera sursiplana

    B. sursiplana is a fragmentary species, based on a single fossil bulla.

    †Balaenoptera taiwanica

    Named after Taiwan, where the fossils were found, B. taiwanica is based on a single tympanic bone, which is similar to that of B. physalus, the fin whale.

    References

    Balaenoptera Wikipedia


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