Information about List Of Extinct Cetaceans
It may never be fully completed or, depending on its its nature, it may be that it can never be completed. However, new and revised entries in the list are always welcome.
The list of extinct cetaceans features the extinct species of the order Cetacea. The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed-mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.
This list currently includes only fossil species. However, the Atlantic population of Gray Whales (Eschrichtius robustus) was hunted to extinction in the 17th century, and the Baiji (or Chinese River Dolphin, Lipotes vexillifer) was declared "functionally extinct" after an expedition in late 2006 failed to find any in the Yangtze River.
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| Cetaceans Fossil range: Early Eocene - Recent | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
) A skull of Basilosaurus cetoides. A skull of Basilosaurus cetoides. | ||||||||||
| Scientific classification | ||||||||||
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The list of extinct cetaceans features the extinct species of the order Cetacea. The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed-mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.
This list currently includes only fossil species. However, the Atlantic population of Gray Whales (Eschrichtius robustus) was hunted to extinction in the 17th century, and the Baiji (or Chinese River Dolphin, Lipotes vexillifer) was declared "functionally extinct" after an expedition in late 2006 failed to find any in the Yangtze River.
Family Protocetidae
(Eocene)- Artiocetus clavis[1]
- Protocetus atavus
- Rodhocetus balochistanensis
- Rhodocetus kasrani
Family Pakicetidae
(Early to Middle Eocene)Family Ambulocetidae
(Eocene)Family Dorudontidae
(Eocene)Family Basilosauridae
(Late Eocene)Family Mammalodontidae
(Eocene - Late Oligocene)Family Janjucetidae
(Late Oligocene)Family Kentriodontidae
(Late Oligocene - Middle Miocene)Family Rhabdosteidae (Eurhinodelphidae)
(Mid to Late Miocene)Family Squalodontidae
- Prosqualodon (Oligocene to the early Miocene)
- Squalodon (Miocene and Pliocene)
Family Cetotheriidae
(Miocene - Early Pleistocene)- Cetotherium
- Piscobalaena nana[2]
Family Odobenocetopsidae
(Pliocene)Family not yet specified
- Eobalaenoptera harrisoni (Middle Miocene)
References
1. ^ Gingerich, P.D. et al. 2001. Origin of Whales from Early Artiodactyls: Hands and Feet of Eocene Protocetidae from Pakistan. (19 September 2001). Science [DOI: 10.1126/science.1063902].
2. ^ Bouetel V. & Muizon C. de 2006. — The anatomy and relationships of Piscobalaena nana (Cetacea, Mysticeti), a Cetotheriidae s.s. from the early Pliocene of Peru. Geodiversitas 28 (2) : 319-395. Online pdf
2. ^ Bouetel V. & Muizon C. de 2006. — The anatomy and relationships of Piscobalaena nana (Cetacea, Mysticeti), a Cetotheriidae s.s. from the early Pliocene of Peru. Geodiversitas 28 (2) : 319-395. Online pdf
See also
External links
The Eocene epoch (55.8 ± 0.2 - 33.9 ± 0.1 Ma) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era. The Eocene spans the time from the end of the Paleocene epoch to the beginning of the Oligocene epoch.
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Vertebrata
Cuvier, 1812
Classes and Clades
See below
Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns.
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Cuvier, 1812
Classes and Clades
See below
Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns.
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Mammalia
Linnaeus, 1758
Subclasses & Infraclasses
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Linnaeus, 1758
Subclasses & Infraclasses
- Subclass †Allotheria*
- Subclass Prototheria
- Subclass Theria
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Cetacea
Brisson, 1762
Diversity
Around 88 species; see list of cetaceans or below.
Suborders
Mysticeti
Odontoceti
Archaeoceti (extinct)
(see text for families)
The order Cetacea
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Brisson, 1762
Diversity
Around 88 species; see list of cetaceans or below.
Suborders
Mysticeti
Odontoceti
Archaeoceti (extinct)
(see text for families)
The order Cetacea
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Mathurin Jacques Brisson (April 30, 1723 – June 23, 1806) was a French zoologist and natural philosopher.
Brisson was born at Fontenay-le-Comte. The earlier part of his life was spent in the pursuit of natural history, his published works in this department including
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Brisson was born at Fontenay-le-Comte. The earlier part of his life was spent in the pursuit of natural history, his published works in this department including
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8th century - 9th century - 10th century
850s 860s 870s - 880s - 890s 900s 910s
885 886 887 - 888 - 889 890 891
:
Subjects: Archaeology - Architecture -
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850s 860s 870s - 880s - 890s 900s 910s
885 886 887 - 888 - 889 890 891
:
Subjects: Archaeology - Architecture -
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extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last individual of that species (although the capacity to breed and recover may have been lost before this point).
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species is one of the basic units of biological classification. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring.
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Cetacea
Brisson, 1762
Diversity
Around 88 species; see list of cetaceans or below.
Suborders
Mysticeti
Odontoceti
Archaeoceti (extinct)
(see text for families)
The order Cetacea
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Brisson, 1762
Diversity
Around 88 species; see list of cetaceans or below.
Suborders
Mysticeti
Odontoceti
Archaeoceti (extinct)
(see text for families)
The order Cetacea
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whale can refer to all cetaceans, to just the larger ones, or only to members of particular families within the order Cetacea. The last definition is the one followed here. Whales are those cetaceans which are neither dolphins (i.e.
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Delphinidae and Platanistoidea
Gray, 1821
Genera
See article below.
Dolphins are aquatic mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from 1.
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Gray, 1821
Genera
See article below.
Dolphins are aquatic mammals that are closely related to whales and porpoises. There are almost forty species of dolphin in seventeen genera. They vary in size from 1.
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Phocoenidae
Gray, 1825
Genera
Neophocaena - Finless porpoise
Phocoena - Harbour porpoise et al.
Phocoenoides - Dall's porpoise
The porpoises are small cetaceans of the family Phocoenidae
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Gray, 1825
Genera
Neophocaena - Finless porpoise
Phocoena - Harbour porpoise et al.
Phocoenoides - Dall's porpoise
The porpoises are small cetaceans of the family Phocoenidae
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Artiodactyla*
Owen, 1848
Families
Antilocapridae
Bovidae
Camelidae
Cervidae
Giraffidae
Hippopotamidae
Moschidae
Suidae
Tayassuidae
Tragulidae
Leptochoeridae †
Dichobunidae †
Cebochoeridae †
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Owen, 1848
Families
Antilocapridae
Bovidae
Camelidae
Cervidae
Giraffidae
Hippopotamidae
Moschidae
Suidae
Tayassuidae
Tragulidae
Leptochoeridae †
Dichobunidae †
Cebochoeridae †
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25: 235–246.
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- For other uses of the term, see Fossil (disambiguation)
FOSSIL is a standard for allowing serial communication for telecommunications programs under the DOS operating system.
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Atlantic Ocean is the second-largest of the world's oceanic divisions; with a total area of about 106.4 million square kilometres (41.1 million square miles), it covers approximately one-fifth of the Earth's surface.
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Eschrichtiidae
Ellerman & Morrison-Scott, 1951
Genus: Eschrichtius
Species: E.
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Ellerman & Morrison-Scott, 1951
Genus: Eschrichtius
Species: E.
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Lipotidae
Genus: Lipotes
Species: L. vexillifer
Binomial name
Lipotes vexillifer
Miller, 1918
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Genus: Lipotes
Species: L. vexillifer
Binomial name
Lipotes vexillifer
Miller, 1918
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Functional extinction is the extinction of a species or other taxon such that:
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- it disappears from the fossil record, or historic reports of its existence cease;[1]
- the reduced population no longer plays a significant role in ecosystem function[2]
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20th century - 21st century - 22nd century
1970s 1980s 1990s - 2000s - 2010s 2020s 2030s
2003 2004 2005 - 2006 - 2007 2008 2009
2006 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
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1970s 1980s 1990s - 2000s - 2010s 2020s 2030s
2003 2004 2005 - 2006 - 2007 2008 2009
2006 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
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Basin countries China
Length 6,300 km (3,915 mi)[1]
Source elevation 5,042 m (16,542 ft)
Avg. discharge 31,900 m³/s (1,127,000 ft³/s)
Basin area 1,800,000 km² (695,000 mi²) The Yangtze River or Chang Jiang
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Length 6,300 km (3,915 mi)[1]
Source elevation 5,042 m (16,542 ft)
Avg. discharge 31,900 m³/s (1,127,000 ft³/s)
Basin area 1,800,000 km² (695,000 mi²) The Yangtze River or Chang Jiang
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Protocetus
Species: P. atavus
Binomial name
Protocetus atavus
Fraas, 1904
Protocetus atavus
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Species: P. atavus
Binomial name
Protocetus atavus
Fraas, 1904
Protocetus atavus
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Rodhocetus
Rodhocetus is one of several extinct whale genera that possess land mammal characteristics, thus demonstrating the transition from land to sea that whales went through.
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Rodhocetus is one of several extinct whale genera that possess land mammal characteristics, thus demonstrating the transition from land to sea that whales went through.
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Pakicetidae
Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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Pakicetus
Species: P. inachus
Binomial name
Pakicetus inachus
Gingerich & Russell, 1981
Pakicetus
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Species: P. inachus
Binomial name
Pakicetus inachus
Gingerich & Russell, 1981
Pakicetus
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Pakicetidae
Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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Pakicetidae
Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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Genera
Gandakasia
Pakicetus
Nalacetus
Ichthyolestes
Pakicetids are the members of the family Pakicetidae, sometimes called the subfamily Pakicetinae
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