User:Fama Clamosa/Sandbox3/Thalassotherii

Thalassotherii (from Greek Thalassos, "sea", and Therii, "mammal beast") is a superfamily of baleen whales. Based on several morphological characters, Bisconti et al. 2013 included Balaenopteridae (rorquals), Eschrichtiidae (gray whales), Cetotheriidae, and basal 'cetothere' mysticetes and excluded Balaenoidea, Eomysticetoidea, and the toothed mysticetes (Aetiocetidae, Aetiocetoidea, Cetotherioidea, Eomysticetidae, Llanocetidae, Mammalodontidae, Mauicetus, Physalidae, Pterobalaenidae).

Bisconti et al. 2013

 * Definition: Thalassotherii includes Cetotheriidae s.l., Cetotheriidae s.s., Eschrichtiidae and Balaenopteridae. In phylogenetic terms (Sereno 1998, 1999), Thalassotherii is defined as USNM 187416, Balaenoptera, their last common ancestor and all the descendants of this ancestor.  Phylogenetically, the most basal named taxon of Thalassotherii is Joumocetus shimizui Kimura and Hasegawa, 2010.  The establishment of Thalassotherii in the taxonomy of mysticetes makes the term Cetotheriidae s.l. obsolete because the latter and Cetotheriidae s.s. do not form a monophyletic group.  Cetotheriidae s.l. is to be changed into basal thalassotherians or thalassotherian stem group or Thalassotherii sedis mutabilis ("of changeable seating").


 * we found support for a clade formed by broad-nosed ‘cetotheres’ only, including Pelocetus calvertensis, ‘Aglaocetus’ patulus and Uranocetus gramensis.
 * Eschrichtiidae is the sister group of Balaenopteridae and Cetotheriidae is the sister group of Eschrichtiidae;
 * Cetotheriidae (both s.s. and s.l.) is not sister group of Caperea + Balaenopteroidea
 * we did not find support for the superfamily Cetotherioidea Steeman (2007) (including Cetotheriidae, Eschrichtiidae, Cetotherium megalophysum, Mixocetus and ‘Mesocetus’ argillarius).
 * The new clade is diagnosed by characters observed in the ear bones, the supraoccipital and the dentary.


 * Parvorder Balaenomorpha
 * Superfamily Eomysticetoidea
 * Superfamily Balaenoidea
 * Family Balaenidae
 * Family Neobalaenidae
 * Superfamily Thalassotherii
 * Family Balaenopteridae
 * Family Cetotheriidae
 * Family Eschrichtiidae
 * "additional stem-thalassotherian mysticetes"
 * The "basal thalassotherians" include Joumocetus shimizui, Parietobalaena palmeri, Parietobalaena campiniana, Diorocetus hiatus, Pelocetus calvertensis, Uranocetus gramensis, ‘Aglaocetus’ patulus, and Isanacetus laticephalus.

Context

 * Mysticeti
 * Family †Aetiocetidae Emlong 1966
 * Genus †Aetiocetus Emlong 1966
 * Genus †Ashorocetus Barnes et al. 1995
 * Genus †Chonecetus Russell 1968
 * Genus †Morawanocetus Barnes et al. 1995
 * Superfamily Cetotherioidea Steeman 2007
 * Infraorder Chaeomysticeti Mitchell 1989 (toothless baleen-bearing mysticeti)
 * Superfamily Balaenoidea Flower 1865
 * Family Balaenidae Gray 1821 (right whale)
 * Clade Balaenomorpha Geisler and Sanders 2003
 * Superfamily Balaenopteroidea Gray 1868
 * Genus †Eobalaenoptera Dooley et al. 2004
 * Genus †Heterocetus Capellini 1877
 * Genus †Otradnocetus Mchedlidze 1984


 * Superfamily Thalassotherii
 * See below
 * Superfamily Eomysticetoidea
 * Family †Cetotheriopsidae Brandt 1872
 * Genus †Cetotheriopsis Brandt 1871
 * Genus †Micromysticetus
 * Genus †Imerocetus
 * Genus †Peripolocetus
 * Genus †Piscocetus
 * Genus †Tiphyocetus
 * Family †Eomysticetidae
 * Genus †Eomysticetus
 * Genus †Yamatocetus Okazaki 2012
 * Family †Llanocetidae Mitchell 1989
 * Genus †Llanocetus Mitchell 1989
 * Family †Mammalodontidae Mitchell 1989
 * Genus †Janjucetus Fitzgerald 2006
 * Genus †Mammalodon Pritchard 1939
 * Genus †Mauicetus Benham 1939

Content
Superfamily †Thalassotherii
 * Genus †Aglaocetus Kellogg 1934
 * Family Balaenopteridae Gray 1864 rorquals
 * Genus †Archaebalaenoptera Bisconti 2007
 * Genus Balaenoptera Lacepede 1804
 * Genus †Cetotheriophanes Brandt 1873
 * Genus †Diunatans Bosselaers and Post 2010
 * Genus Megaptera Gray 1846
 * Genus †Notiocetus Ameghino 1891
 * Genus †Parabalaenoptera Zeigler et al. 1997
 * Genus †Plesiobalaenoptera Bisconti 2010
 * Genus †Plesiocetus Van Beneden 1859
 * Genus †Praemegaptera Behrmann 1995
 * Genus †Protororqualus Bisconti 2007
 * Genus Pterobalaena Eschricht 1849
 * Genus Rorqualus Cuvier 1836
 * Family Cetotheriidae Brandt 1872
 * Subfamily †Cetotheriinae Whitmore and Barnes 2008
 * Genus †Cetotherium Brandt 1843
 * Genus †Kurdalagonus Tarasenko and Lopatin 2012
 * Subfamily Herpetocetinae Steeman 2007
 * Genus †Cephalotropis Cope 1896
 * Genus †Vampalus Tarasenko and Lopatin 2012
 * Genus †Herpetocetus Van Beneden 1872
 * Genus †Hibacetus Otsuka and Ota 2008
 * Genus †Joumocetus Kimura and Hasegawa 2010
 * Genus †Metopocetus Cope 1896
 * Genus †Mixocetus Kellogg 1934
 * Genus †Nannocetus Kellogg 1929
 * Subfamily Neobalaeninae Miller 1923 pygmy right whales
 * Genus Caperea Gray 1864
 * Genus †Miocaperea Bisconti 2012
 * Genus †Palaeobalaena Moreno 1882
 * Genus †Piscobalaena Pilleri and Siber 1989
 * Genus †Plesiocetopsis Brandt 1873
 * Genus †Diorocetus Kellogg 1968
 * Family Eschrichtiidae Ellerman and Morrisson-Scott 1951 gray whales
 * Genus †Archaeschrichtius Bisconti and Varola 2006
 * Genus †Eschrichtioides Bisconti 2008
 * Genus Eschrichtius Gray 1864 gray whale
 * Genus †Gricetoides Whitmore and Kaltenbach 2008
 * Genus †Isanacetus Kimura and Ozawa 2002
 * Genus †Isocetus Van Beneden 1880
 * Genus †Parietobalaena Kellogg 1924
 * Genus †Pelocetus Kellogg 1965
 * Genus †Titanocetus Bisconti 2006