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Taxonomy
Isocetus was named by Van Beneden (1880) [Sepkoski's age data: T Mi-u].
It was synonymized subjectively with Plesiocetus by True (1912); it was considered a nomen dubium by Steeman (2010).
It was assigned to Balaenopterinae by Trouessart (1898), Trouessart (1904); to Balaenidae by Palmer (1904); to Cetacea by Sepkoski (2002); to Cetotheriidae by Kellogg (1928), Kellogg (1944), Simpson (1945), Sherman (1952), Whitmore (1984), Carroll (1988), McKenna and Bell (1997), Whitmore and Barnes (2008); to Mysticeti by Uhen et al. (2008); and to Thalassotherii by Bisconti et al. (2013), Berta (2017).
It was synonymized subjectively with Plesiocetus by True (1912); it was considered a nomen dubium by Steeman (2010).
It was assigned to Balaenopterinae by Trouessart (1898), Trouessart (1904); to Balaenidae by Palmer (1904); to Cetacea by Sepkoski (2002); to Cetotheriidae by Kellogg (1928), Kellogg (1944), Simpson (1945), Sherman (1952), Whitmore (1984), Carroll (1988), McKenna and Bell (1997), Whitmore and Barnes (2008); to Mysticeti by Uhen et al. (2008); and to Thalassotherii by Bisconti et al. (2013), Berta (2017).
Species