Opinions from D. P. Domning 1996
- 'Amblychilus is a subjective synonym of Dugong'
- 'Anisosiren belongs to Dugongidae'
- 'Anisosiren pannonica belongs to Anisosiren'
- 'Anomotherium belongs to Miosireninae'
- 'Anomotherium langewieschei belongs to Anomotherium'
- 'Antaodon belongs to Tayassuidae'
- 'Antaodon cinctus belongs to Antaodon'
- 'Anthropocephala is an objective synonym of Sirenia'
- 'Archaeosiren is a subjective synonym of Eosiren'
- 'Archaeosiren stromeri is recombined as Eosiren stromeri'
- 'Archaeosiren stromeri belongs to Archaeosiren' according to O. Abel 1913
- 'Archaeosireninae is a subjective synonym of Halitheriinae'
- 'Behemotops belongs to Desmostylia'
- 'Behemotops emlongi is a subjective synonym of Behemotops proteus'
- 'Behemotops proteus belongs to Behemotops'
- 'Caribosiren belongs to Halitheriinae'
- 'Caribosiren turneri belongs to Caribosiren' according to Reinhart 1959
- 'Caribosiren turneri belongs to Caribosiren'
- 'Cheirotherium is a subjective synonym of Metaxytherium'
- 'Cheirotherium brochii belongs to Cheirotherium' according to de Blainville 1844
- 'Cheirotherium brochii is a subjective synonym of Cheirotherium subapenninum'
- 'Cheirotherium brochii is recombined as Manatus brochii' according to de Blainville 1844
- 'Cheirotherium brochii is recombined as Metaxytherium brochii' according to Laurillard 1846
- 'Cheirotherium brochii is recombined as Halitherium brochii' according to Gervais 1847
- 'Cheirotherium brochii is recombined as Halianassa brochii' according to Bronn 1848
- 'Cheirotherium subapenninum is recombined as Metaxytherium subapenninum'
- 'Cheirotherium subapenninum belongs to Halitherium' according to Kaup 1855
- 'Cheirotherium subapenninum is recombined as Felsinotherium subapenninum' according to de Zigno 1878
- 'Chronozoon is a nomen dubium'
- 'Chronozoon australae is a nomen dubium'
- 'Cornwallius belongs to Desmostylia'
- 'Cornwallius tabatai is recombined as Paleoparadoxia tabatai'
- 'Cornwalliidae is replaced by Cornwalliidae'
- 'Corystosiren belongs to Dugonginae'
- 'Corystosiren varguezi belongs to Corystosiren'
- 'Crassitherium is a nomen dubium'
- 'Crassitherium robustum is a nomen dubium'
- 'Crenatosiren belongs to Dugonginae'
- 'Cryptomastodon belongs to Proboscidea'
- 'Desmodontia is a nomen oblitum'
- 'Desmostylella is a subjective synonym of Desmostylus'
- 'Desmostylella typica belongs to Desmostylella' according to Nagao 1937
- 'Desmostylella typica is a subjective synonym of Desmostylus hesperus'
- 'Desmostylia belongs to Tethytheria'
- 'Desmostyliformes is a subjective synonym of Desmostylia'
- 'Desmostyloidea belongs to Multituberculata' according to O. Abel 1933
- 'Desmostyloidea is a nomen oblitum'
- 'Desmostylus belongs to Desmostylia'
- 'Desmostylus californicus belongs to Desmostylus' according to Hay 1923
- 'Desmostylus californicus is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus cymatias is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus hesperus belongs to Desmostylus'
- 'Desmostylus japonicus belongs to Desmostylus' according to Tokunaga and Iwasaki 1914
- 'Desmostylus japonicus is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus minor belongs to Desmostylus' according to Nagao 1937
- 'Desmostylus minor is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus mirabilis is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus sookensis is recombined as Cornwallius sookensis'
- 'Desmostylus watasei is a subjective synonym of Desmostylus hesperus'
- 'Desmostylus wollosowitschi belongs to Desmostylus' according to Pfizenmayer 1927
- 'Desmostylus wollosowitschi is an objective synonym of Neodesmostylus primigenius'
- 'Diopia is an objective synonym of Sirenia'
- 'Dioplotherium belongs to Dugonginae'
- 'Dioplotherium manigaulti belongs to Dioplotherium'
- 'Dugong belongs to Dugonginae'
- 'Dugongidae belongs to Sirenia'
- 'Dugongidus is a subjective synonym of Dugong'
- 'Dugonginae belongs to Dugongidae'
- 'Dugungus is a subjective synonym of Dugong'
- 'Dusisiren belongs to Hydrodamalinae'
- 'Dusisiren dewana belongs to Dusisiren'
- 'Dusisiren reinharti belongs to Dusisiren'
- 'Dystomus is a subjective synonym of Hydrodamalis'
- 'Eosiren belongs to Halitheriinae'
- 'Eosiren abeli belongs to Eosiren'
- 'Eosiren libyca belongs to Eosiren' according to C. W. Andrews 1902
- 'Eosiren libyca belongs to Eosiren'
- 'Eotherioidinae is a subjective synonym of Halitheriinae'
- 'Eotherium is a subjective synonym of Eotheroides'
- 'Eotherium aegyptiacum is recombined as Halitherium aegyptiacum' according to von Zittel 1893
- 'Eotherium aegyptiacum is recombined as Eotheroides aegyptiacum' according to Trouessart 1905
- 'Eotherium aegyptiacum is recombined as Eotheroides aegyptiacum'
- 'Eotherium majus belongs to Eotherium'
- 'Eotherium markgrafi is a nomen nudum'
- 'Eotheroides belongs to Halitheriinae'
- 'Felsinotherium is a subjective synonym of Metaxytherium'
- 'Felsinotherium forestii is a subjective synonym of Metaxytherium subapenninum'
- 'Felsinotherium gastaldi is a subjective synonym of Metaxytherium subapenninum'
- 'Felsinotherium gervaisi is a subjective synonym of Metaxytherium subapenninum'
- 'Felsinotherium gunteri is a nomen nudum'
- 'Felsinotherium ortegense is an objective synonym of Metaxytherium ortegense'
- 'Felsinotherium ossivallense is a subjective synonym of Metaxytherium floridanum'
- 'Felsinotherium ossivallense is recombined as Metaxytherium ossivallense' according to Reinhart 1971
- 'Felsinotherium subalpinum belongs to Felsinotherium' according to Isel 1910
- 'Felsinotherium subalpinum is a subjective synonym of Metaxytherium subapenninum'
- 'Florentinoameghinia belongs to Mammalia'
- 'Fucotherium is a subjective synonym of Metaxytherium'
- 'Furcotherium is a misspelling of Fucotherium'
- 'Halianassa is a subjective synonym of Halitherium'
- 'Halianassa allisoni belongs to Halianassa' according to Kilmer 1965
- 'Halianassa allisoni is recombined as Dioplotherium allisoni'
- 'Halianassa collinii belongs to Halianassa' according to Von Meyer 1846
- 'Halianassa collinii is a subjective synonym of Halitherium schinzii'
- 'Halianassa vanderhoofi is a subjective synonym of Dusisiren jordani'
- 'Halianassinae is a subjective synonym of Halitheriinae'
- 'Halianassinae belongs to Dugongidae' according to Reinhart 1959
- 'Halibutherium is a nomen nudum'
- 'Halicora is a subjective synonym of Dugong'
- 'Halicore is a subjective synonym of Dugong'
- 'Halicore cuvierii belongs to Halicore' according to de Christol 1832
- 'Halicore cuvierii is recombined as Manatus cuvieri' according to de Blainville 1844
- 'Halicore cuvierii is recombined as Metaxytherium cuvierii' according to de Christol 1844
- 'Halicore cuvierii is recombined as Halianassa cuvieri' according to Bronn 1848
- 'Halitherium cuvieri is a subjective synonym of Metaxytherium medium'
- 'Halicore maximovitschii is a nomen nudum'
- 'Halicore tabernaculi is a subjective synonym of Dugong dugon'
- 'Halicorea is a subjective synonym of Trichechidae'
- 'Halicoreae is an objective synonym of Trichechidae'
- 'Halicorida is a subjective synonym of Dugongidae'
- 'Halicoridae is a subjective synonym of Dugongidae'
- 'Halicorinae is a subjective synonym of Dugonginae'
- 'Halicoroidea is a subjective synonym of Dugongidae'
- 'Haligyna is a subjective synonym of Hydrodamalis'
- 'Halipaedisca is a subjective synonym of Trichechus'
- 'Halitheriidae was reranked as the subfamily Halitheriinae and belongs to Dugongidae'
- 'Halitherium belongs to Halitheriinae'
- 'Halitherium (Prototherium) was reranked as Prototherium and belongs to Halitheriinae'
- 'Halitherium abeli belongs to Halitherium' according to Spillman 1959
- 'Halitherium abeli is a subjective synonym of Halitherium christolii'
- 'Halitherium alleni belongs to Halitherium' according to G. G. Simpson 1932
- 'Halitherium alleni belongs to Halitherium'
- 'Halitherium angustifrons is a subjective synonym of Prototherium veronense'
- 'Halitherium antillense belongs to Halitherium'
- 'Halitherium bellunense is a nomen dubium'
- 'Halitherium bronni is a subjective synonym of Halitherium schinzii'
- 'Halitherium canhami is recombined as Miosiren canhami'
- 'Halitherium canhami belongs to Halitherium' according to Flower 1874
- 'Halitherium canhami is recombined as Miosiren canhami' according to O. Sickenberg 1934
- 'Halitherium chouqueti is a subjective synonym of Halitherium schinzii'
- 'Halitherium christolii belongs to Halitherium' according to Fitzinger 1842
- 'Halitherium christolii belongs to Halitherium'
- 'Halitherium christolii is recombined as Manatus christolii' according to de Blainville 1844
- 'Halitherium christolii is recombined as Metaxytherium christolii' according to Laurillard 1846
- 'Halitherium curvidens is a subjective synonym of Prototherium veronense'
- 'Halitherium kaupi is a subjective synonym of Halitherium schinzii'
- 'Halitherium minor is a subjective synonym of Metaxytherium serresii'
- 'Halitherium olsenensis belongs to Halitherium' according to Reinhart 1972
- 'Halitherium olsenensis is an invalid subgroup of Crenatosiren olseni'
- 'Halitherium olseni is recombined as Crenatosiren olseni'
- 'Halitherium schinzi lareolensis is an invalid subgroup of Halitherium schinzii'
- 'Halitherium schinzii lareolense is an invalid subgroup of Halitherium schinzii'
- 'Halitherium serresii is recombined as Metaxytherium serresii'
- 'Halitherium serresii is recombined as Felsinotherium serresii' according to de Zigno 1878
- 'Halitherium serresii [misspelled as Metaxytherium serresi] belongs to Metaxytherium' according to Deperet 1895
- 'Metaxytherium serresi is a misspelling of Metaxytherium serresii'
- 'Halitherium uytterhoeveni belongs to Halitherium' according to O. Abel 1925
- 'Halitherium uytterhoeveni is a subjective synonym of Halitherium schinzii'
- 'Halitherium veronense is recombined as Protosiren veronense' according to Kaltenmark 1942
- 'Halitherium veronense is recombined as Prototherium veronense'
- 'Halitherium veronense is recombined as Halitherium (Prototherium) veronense' according to de Zigno 1887
- 'Halobioidea is an objective synonym of Sirenia'
- 'Halysiren is a subjective synonym of Metaxytherium'
- 'Halytherium is replaced by Halitherium'
- 'Haplosiren is a subjective synonym of Metaxytherium'
- 'Haplosiren leganyii is a subjective synonym of Metaxytherium medium'
- 'Herbivorae is a subjective synonym of Sirenia'
- 'Hesperosiren is a subjective synonym of Metaxytherium'
- 'Hesperosiren crataegensis is corrected as Hesperosiren crataegense and belongs to Hesperosiren' according to G. G. Simpson 1932
- 'Hesperosiren crataegensis is recombined as Metaxytherium crataegense'
- 'Hippopotamus dubius is recombined as Halitherium dubium' according to Kaup 1852
- 'Hippopotamus dubius is recombined as Protosiren dubia' according to O. Sickenberg 1934
- 'Hippopotamus dubius belongs to Hippopotamus' according to Cuvier 1824
- 'Hippopotamus dubius is recombined as Manatus dubius' according to Blainville 1844
- 'Manatus dubius is a subjective synonym of Halitherium schinzii'
- 'Hippopotamus intermedius belongs to Hippopotamus' according to Holl 1829
- 'Hippopotamus intermedius is a subjective synonym of Metaxytherium medium'
- 'Hippopotamus medius is recombined as Metaxytherium medium' according to Hooijer 1952
- 'Hippopotamus medius is recombined as Metaxytherium medium'
- 'Hippopotamus minimus is a subjective synonym of Protosiren dubia' according to O. Sickenberg 1934
- 'Hippopotamus minimus is recombined as Protosiren minima'
- 'Hippopotamus minimus is recombined as Protosiren minima' according to Hooijer 1952
- 'Hydrodamalidae was reranked as the subfamily Hydrodamalinae and belongs to Dugongidae'
- 'Hydrodamalis belongs to Hydrodamalinae'
- 'Hydrodamalis cuestae belongs to Hydrodamalis'
- 'Hydrodamalis spissa is a subjective synonym of Hydrodamalis cuestae'
- 'Hydrodamalis stelleri is recombined as Rhytine stelleri' according to Burmeister 1837
- 'Hydrodamalis stelleri belongs to Hydrodamalis' according to Retzius 1794
- 'Hydrodamalis stelleri is a subjective synonym of Hydrodamalis gigas'
- 'Hydrodamalis stelleri is recombined as Nepus stelleri' according to Fischer von Waldheim 1814
- 'Indosiren belongs to Dugongidae'
- 'Indosiren javanense is corrected as Indosiren javanensis and belongs to Indosiren'
- 'Indosiren javanense belongs to Indosiren' according to von Koeningswald 1952
- 'Indosiren koeningswaldi belongs to Indosiren'
- 'Indosiren koeningswaldi belongs to Indosiren' according to Sahni and Mishra 1975
- 'Ischyrotherium belongs to Reptilia'
- 'Ishatherium is a subjective synonym of Anthracobune'
- 'Kronokotherium is a subjective synonym of Desmostylus'
- 'Kronokotherium brevimaxillare is a subjective synonym of Desmostylus hesperus'
- 'Lophiodolodus belongs to Mammalia'
- 'Manatherium is a subjective synonym of Halitherium'
- 'Manatherium delheidi is a subjective synonym of Halitherium schinzii'
- 'Manati is replaced by Hydrodamalis'
- 'Manati balaenurus belongs to Manati' according to Boddaert 1785
- 'Manati balaenurus is a subjective synonym of Hydrodamalis gigas'
- 'Manati balaenurus is recombined as Rytina balaenurus' according to Bechstein 1800
- 'Manati gigas is recombined as Manatus gigas' according to Lucas 1891
- 'Manati gigas is recombined as Hydrodamalis gigas'
- 'Manatida is an objective synonym of Trichechidae'
- 'Manatidae is an objective synonym of Trichechidae'
- 'Manatides is an objective synonym of Sirenia'
- 'Manatina is an objective synonym of Sirenia'
- 'Manatoidea is an objective synonym of Trichechidae'
- 'Manatus aequatorialis is an invalid subgroup of Trichechidae'
- 'Manatus antiquus is corrected as Manatus antiquus and belongs to Manatus' according to J. Leidy 1889
- 'Manatus antiquus is a nomen dubium'
- 'Manatus antiquus is recombined as Ischyrosaurus antiquus' according to Cope 1875
- 'Manatus australis is a subjective synonym of Trichechus manatus'
- 'Manatus coulombi is a subjective synonym of Eotheroides aegyptiacum'
- 'Manatus coulombi belongs to Eotheroides' according to Trouessart 1905
- 'Manatus fossilis belongs to Manatus' according to Holl 1829
- 'Manatus fossilis belongs to Halitherium' according to Gervais 1847
- 'Manatus fossilis is a subjective synonym of Metaxytherium medium'
- 'Manatus fossilis is recombined as Metaxytherium fossile' according to Deperet 1895
- 'Manatus giganteus is a nomen dubium'
- 'Manatus guettardi belongs to Manatus' according to Blainville 1844
- 'Manatus guettardi is a subjective synonym of Halitherium schinzii'
- 'Manatus guettardi is recombined as Metaxytherium guettardi' according to Laurillard 1846
- 'Manatus guettardi is recombined as Halitherium guettardi' according to Gervais 1847
- 'Manatus inornatus is a nomen dubium'
- 'Manatus inunguis belongs to Manatus' according to Natterer 1883
- 'Manatus koellikeri belongs to Manatus' according to Kukenthal 1897
- 'Manatus koellikeri is a subjective synonym of Trichechus manatus'
- 'Manatus latirostris is recombined as Trichechus manatus latirostris'
- 'Manatus maeoticus is an invalid subgroup of Phocidae'
- 'Manatus renggeri is a nomen nudum'
- 'Manatus senegalensis is a subjective synonym of Trichechus senegalensis'
- 'Manatus studeri is recombined as Halitherium studeri' according to Kaup 1855
- 'Manatus studeri is recombined as Thalattosiren studeri' according to Thenius 1952
- 'Halianassa studeri is a subjective synonym of Metaxytherium krahuletzi'
- 'Manatus studeri belongs to Manatus' according to von Meyer 1837
- 'Manatus vulgaris is an invalid subgroup of Trichechidae'
- 'Masrisiren is a subjective synonym of Eotheroides'
- 'Masrisiren abeli is a subjective synonym of Eotheroides aegyptiacum'
- 'Masrisiren abeli belongs to Masrisiren' according to Kretzoi 1941
- 'Mesosiren is a subjective synonym of Prototherium'
- 'Metaxytheriinae is a subjective synonym of Halitheriinae'
- 'Metaxytherium belongs to Halitheriinae'
- 'Metaxytherium aquitaniae belongs to Metaxytherium'
- 'Metaxytherium arctodites belongs to Metaxytherium' according to Aranda-Manteca et al. 1994
- 'Metaxytherium arctodites belongs to Metaxytherium'
- 'Metaxytherium argoviense is a subjective synonym of Metaxytherium krahuletzi'
- 'Metaxytherium beaumontii belongs to Metaxytherium' according to de Christol 1844
- 'Metaxytherium beaumontii is a nomen dubium'
- 'Metaxytherium beaumontii is recombined as Halitherium beaumontii' according to Gervais 1852
- 'Metaxytherium calvertense is a subjective synonym of Metaxytherium crataegense'
- 'Metaxytherium catalaunicum is a subjective synonym of Metaxytherium medium'
- 'Metaxytherium christoli is a subjective synonym of Metaxytherium krahuletzi'
- 'Metaxytherium cordieri is a subjective synonym of Metaxytherium medium'
- 'Metaxytherium cordieri is recombined as Halianassa cordieri' according to Bronn 1848
- 'Metaxytherium cordieri is recombined as Halitherium cordieri' according to Peters 1867
- 'Metaxytherium cordieri belongs to Metaxytherium' according to de Christol in de Blainville 1844
- 'Metaxytherium floridanum belongs to Metaxytherium'
- 'Metaxytherium floridanum belongs to Metaxytherium' according to Hay 1922
- 'Metaxytherium jordani is recombined as Dusisiren jordani'
- 'Metaxytherium jordani belongs to Metaxytherium' according to R. Kellogg 1925
- 'Metaxytherium kachchhensis is corrected as Metaxytherium kachchhense and belongs to Metaxytherium'
- 'Metaxytherium krahuletzi belongs to Metaxytherium'
- 'Metaxytherium krahuletzi excelsum is an invalid subgroup of Metaxytherium krahuletzi'
- 'Metaxytherium lovisati belongs to Metaxytherium' according to Capellini 1886
- 'Metaxytherium lovisati belongs to Metaxytherium'
- 'Metaxytherium meyeri is a nomen dubium'
- 'Metaxytherium ortegense is a subjective synonym of Potamosiren magdalenensis'
- 'Metaxytherium pergense is a subjective synonym of Halitherium christolii'
- 'Metaxytherium petersi is recombined as Thalattosiren petersi'
- 'Metaxytherium riveroi belongs to Metaxytherium' according to Varona 1972
- 'Metaxytherium riveroi is a subjective synonym of Metaxytherium crataegense'
- 'Miodugong belongs to Dugongidae'
- 'Miodugong brevicranius belongs to Miodugong'
- 'Miosiren belongs to Miosireninae'
- 'Miosiren kocki belongs to Miosiren'
- 'Miosireninae belongs to Trichechidae'
- 'Multituberculata was reranked as a subclass and belongs to Mammalia' according to O. Abel 1933
- 'Nemodermus is a nomen nudum'
- 'Neodesmostylus belongs to Proboscidea'
- 'Neodesmostylus primigenius belongs to Neodesmostylus' according to Khomenko 1928
- 'Nepus is a subjective synonym of Hydrodamalis'
- 'Oxystomus is a subjective synonym of Trichechus'
- 'Paleoparadoxia belongs to Desmostylia'
- 'Paleoparadoxia weltoni belongs to Paleoparadoxia'
- 'Paraliosiren is a subjective synonym of Prototherium'
- 'Paraliosiren suessi belongs to Paraliosiren' according to O. Abel 1906
- 'Paraliosiren suessi is a subjective synonym of Prototherium veronense'
- 'Paralitherium belongs to Dugongidae'
- 'Paralitherium tarkanyense belongs to Paralitherium'
- 'Paralitherium tarkanyense belongs to Paralitherium' according to Kordos 1977
- 'Platystomus is a subjective synonym of Dugong'
- 'Pontotherium is a subjective synonym of Metaxytherium'
- 'Potamosiren belongs to Trichechinae'
- 'Potamosiren magdalenensis is recombined as Ribodon magdalenensis' according to Marshal et al. 1983
- 'Potamosiren magdalenensis belongs to Potamosiren'
- 'Prohalicore belongs to Dugongidae'
- 'Prohalicore dubaleni belongs to Prohalicore'
- 'Prorastoma is an objective synonym of Prorastomus'
- 'Prorastomatidae is an objective synonym of Prorastomidae'
- 'Prorastomidae belongs to Sirenia'
- 'Prorastomus belongs to Prorastomidae'
- 'Prorastomus sirenoides belongs to Prorastomus'
- 'Protosiren belongs to Protosirenidae'
- 'Protosiren dolloi is a subjective synonym of Prototherium veronense'
- 'Protosiren dolloi is recombined as Mesosiren dolloi' according to O. Abel 1906
- 'Protosiren fraasi is recombined as Eosiren fraasi' according to Schlosser 1923
- 'Protosiren fraasi belongs to Protosiren'
- 'Protosiren fraasi belongs to Protosiren' according to Abel 1904
- 'Protosiren fraasi belongs to Protosiren' according to O. Abel 1907
- 'Protosiren fraasi is recombined as Prototherium fraasi' according to Fuchs 1973
- 'Protosiren fraasi belongs to Protosiren' according to Schlosser 1923
- 'Protosirenidae belongs to Sirenia'
- 'Prototheriidae is an invalid subgroup of Halitheriinae'
- 'Prototherium intermedium belongs to Prototherium'
- 'Prototherium montserratense is a subjective synonym of Prototherium intermedium'
- 'Prototherium solei is a subjective synonym of Prototherium intermedium'
- 'Pugmeodon is a nomen nudum'
- 'Pygmaeodon is a misspelling of Pugmeodon'
- 'Pugmeodon schinzii is recombined as Halitherium schinzii'
- 'Pugmeodon schinzii is recombined as Manatus schinzii' according to Blainville 1844
- 'Halitherium schinzi is a misspelling of Halitherium schinzii'
- 'Pugmeodon schinzii [misspelled as Pygmaeodon schinzii] belongs to Pygmaeodon' according to Giebel 1847
- 'Rhytina is a subjective synonym of Hydrodamalis'
- 'Rhytina stellerus is a subjective synonym of Hydrodamalis gigas'
- 'Rhytine is an objective synonym of Hydrodamalis'
- 'Rhytinea is a subjective synonym of Hydrodamalinae'
- 'Rhytiodinae is a subjective synonym of Dugonginae'
- 'Rhytiodus belongs to Pisces'
- 'Thelriope capgrandi is a subjective synonym of Rytiodus capgrandi'
- 'Ribodon belongs to Trichechinae'
- 'Ribodon limbatus belongs to Ribodon' according to F. Ameghino 1883
- 'Rytina is a subjective synonym of Hydrodamalis'
- 'Rytina cetacea belongs to Rytina' according to Illiger 1815
- 'Rytina cetacea is a subjective synonym of Hydrodamalis gigas'
- 'Rytinadae is a subjective synonym of Hydrodamalinae'
- 'Rytineae is a subjective synonym of Hydrodamalinae'
- 'Rytinidae is a subjective synonym of Hydrodamalinae'
- 'Rytiodontinae is a subjective synonym of Dugonginae'
- 'Rhytiodus is a misspelling of Rytiodus'
- 'Rytiodus belongs to Dugonginae'
- 'Rytiodus capgrandi belongs to Rytiodus'
- 'Sirenavus belongs to Dugongidae'
- 'Sirenavus hungaricus belongs to Sirenavus'
- 'Sirene is a subjective synonym of Hydrodamalis'
- 'Sirenia was reranked as a order and belongs to Tethytheria'
- 'Sireniformia is an objective synonym of Sirenia'
- 'Sirenotherium is a nomen dubium'
- 'Sirenotherium pirabense is a nomen dubium'
- 'Stellerus is a subjective synonym of Hydrodamalis'
- 'Tethytheria belongs to Mammalia'
- 'Thalattosiren belongs to Halitheriinae'
- 'Thelriope is an objective synonym of Rytiodus'
- 'Thelriopiinae is a subjective synonym of Dugonginae'
- 'Trachypleurotherium is a nomen nudum'
- 'Trachytherium is a subjective synonym of Halitherium'
- 'Trachytherium raulinii is a subjective synonym of Halitherium schinzii'
- 'Trachytherium raulinii is recombined as Halitherium raulinii' according to Deperet 1895
- 'Trichechiformes is an objective synonym of Sirenia'
- 'Trichechoidea is an objective synonym of Trichechidae'
- 'Trichechus belongs to Trichechinae'
- 'Trichechus dugon belongs to Trichechus' according to Muller 1776
- 'Trichechus dugon is recombined as Dugong dugon'
- 'Trichechus hydropithecus is a nomen nudum'
- 'Trichechus manatus belongs to Trichechus'
- 'Trichechus manatus borealis is recombined as Stellerus borealis' according to Desmarest 1822
- 'Trichechus manatus borealis is recombined as Haligyna borealis' according to Billberg 1827
- 'Trichechus manatus borealis belongs to Trichechus manatus' according to Gmelin 1788
- 'Trichechus manatus borealis is recombined as Sirene borealis' according to Link 1794
- 'Trichechus manatus borealis is recombined as Manatus borealis' according to Link 1795
- 'Trichechus manatus borealis is recombined as Trichechus borealis' according to Shaw 1800
- 'Trichechus manatus borealis is recombined as Rytina borealis' according to Illiger 1815
- 'Trichechus manatus manatus belongs to Trichechus manatus' according to C. Linnaeus 1758
- 'Trichechus senegalensis belongs to Trichechus' according to Link 1795
- 'Trichecidae is corrected as Trichechidae and belongs to Sirenia'
- 'Vanderhoofius belongs to Desmostylia'
- 'Vanderhoofius coalingensis belongs to Vanderhoofius'
- 'Xenosiren belongs to Dugonginae'
- 'Xenosiren yucateca belongs to Xenosiren'