|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Trichechidae
It was synonymized subjectively with Rosmaridae by Gill (1866); it was synonymized subjectively with Odobaenidae by Allen (1880); it was synonymized subjectively with Odobenidae by Hay (1902), Weber (1928) and McKenna and Bell (1997); it was reranked as the family Trichechinae by Gray (1866), Domning (1994), Voss (2014) and Domning (2018).
It was assigned to Cetae by Gray (1825); to Phocidae by Gray (1866); to Pinnipedia by Ameghino (1889); to Pinnipedia by Bonaparte (1850), Gray (1871), Flower (1883), Trouessart (1898) and Trouessart (1904); to Pinnipedia by Lydekker (1885), Flower and Lydekker (1891) and Zittel (1925); and to Trichechidae by Domning (1994), Voss (2014) and Domning (2018).
|Year||Name and author|
|1825||Trichechidae Gray p. 340|
|1850||Trichechidae Bonaparte p. 1|
|1866||Trichechinae Gray p. 31|
|1871||Trichechidae Gray p. 4|
|1883||Trichechidae Flower p. 185|
|1885||Trichechidae Lydekker p. 197|
|1889||Trichechidae Ameghino p. 342|
|1891||Trichechidae Flower and Lydekker p. 91|
|1898||Trichecidae Trouessart p. 375|
|1904||Trichechidae Trouessart p. 281|
|1925||Trichechidae Zittel p. 78|
|1994||Trichechinae Domning p. 189|
|2014||Trichechinae Voss p. 91 figs. Figure 3|
|2018||Trichechinae Domning p. 857 figs. Fig. 1|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.