Opinions from M. C. Mihlbachler 2008
- 'Acrotitan belongs to Brontotheriinae'
- 'Acrotitan ulanshirehensis belongs to Acrotitan' according to Ye 1983
- 'Acrotitan ulanshirehensis belongs to Acrotitan'
- 'Aktautitan belongs to Embolotheriita'
- 'Aktautitan hippopotamopus belongs to Aktautitan'
- 'Allops is a subjective synonym of Megacerops'
- 'Arctotitan honghoensis is a nomen dubium'
- 'Ateleodon is a subjective synonym of Megacerops'
- 'Brachydiastematherium belongs to Embolotheriita'
- 'Brachydiastematherium transylvanicum belongs to Brachydiastematherium'
- 'Brachydiastematherium transylvanicum belongs to Brachydiastematherium' according to Bockh and Maty 1876
- 'Brontopinae is an invalid subgroup of Brontotheriidae'
- 'Brontops is a subjective synonym of Megacerops'
- 'Brontops gobiensis is recombined as Parabrontops gobiensis'
- 'Brontotheridae is corrected as Brontotheriidae and belongs to Perissodactyla'
- 'Brontotheriina belongs to Brontotheriini'
- 'Brontotheriinae belongs to Brontotheriidae'
- 'Brontotheriini belongs to Brontotheriinae'
- 'Brontotheriita belongs to Brontotheriina'
- 'Brontotherium is a subjective synonym of Megacerops'
- 'Brontotherium gigas is a subjective synonym of Megacerops coloradensis'
- 'Brontotherium hatcheri is a subjective synonym of Megacerops coloradensis'
- 'Brontotherium ingens is a subjective synonym of Megacerops coloradensis'
- 'Brontotherium leidyi is a subjective synonym of Megacerops coloradensis'
- 'Bunobrontops belongs to Brontotheriinae'
- 'Bunobrontops savagei belongs to Bunobrontops'
- 'Danjiangia belongs to Perissodactyla'
- 'Desmatotitan belongs to Brontotheriinae'
- 'Desmatotitan tukhumensis belongs to Desmatotitan'
- 'Dianotitan belongs to Brontotheriita'
- 'Dianotitan lunanensis belongs to Dianotitan'
- 'Dianotitan lunanensis belongs to Dianotitan' according to Chow and Hu 1959
- 'Diplacodon belongs to Brontotheriina'
- 'Diplacodon elatus belongs to Diplacodon'
- 'Diplacodon emarginatus is recombined as Protitanotherium emarginatum'
- 'Diplacodon progressum is a subjective synonym of Diplacodon elatus'
- 'Eotitanotherium osborni is a subjective synonym of Diplacodon elatus'
- 'Diploclonus is a subjective synonym of Megacerops'
- 'Dolichorhinae was reranked as the tribe Dolichorhinini and belongs to Brontotheriinae'
- 'Dolichorhinoides angustidens is a subjective synonym of Epimanteoceras formosus'
- 'Dolichorhinus belongs to Dolichorhinini'
- 'Dolichorhinus fluminalis is a subjective synonym of Dolichorhinus hyognathus'
- 'Dolichorhinus heterodon is a subjective synonym of Dolichorhinus hyognathus'
- 'Dolichorhinus intermedius is a subjective synonym of Dolichorhinus hyognathus'
- 'Dolichorhinus kaiseni is recombined as Rhinotitan kaiseni'
- 'Dolichorhinus longiceps is a subjective synonym of Dolichorhinus hyognathus'
- 'Duchesneodus belongs to Brontotheriita'
- 'Embolotheriinae was reranked as the unranked clade Embolotheriita and belongs to Brontotheriinae'
- 'Embolotherium belongs to Embolotheriita'
- 'Embolotherium andrewsi belongs to Embolotherium'
- 'Embolotherium grangeri belongs to Embolotherium'
- 'Embolotherium insigne belongs to Embolotherium' according to Yanovskaya 1980
- 'Embolotherium insigne is a subjective synonym of Embolotherium grangeri'
- 'Embolotherium loucksii is a subjective synonym of Embolotherium grangeri'
- 'Eotitanopinae belongs to Brontotheriidae'
- 'Eotitanops belongs to Eotitanopinae'
- 'Eotitanops minimus belongs to Eotitanops'
- 'Epimanteoceras belongs to Brontotheriini'
- 'Epimanteoceras amplus belongs to Epimanteoceras' according to Yanovskaya 1976
- 'Epimanteoceras amplus is a nomen dubium'
- 'Epimanteoceras formosus belongs to Epimanteoceras'
- 'Epimanteoceras praecursor belongs to Epimanteoceras' according to Yanovskaya 1953
- 'Epimanteoceras praecursor is a nomen dubium'
- 'Eubrontotherium belongs to Brontotheriita'
- 'Eubrontotherium clarnoensis belongs to Eubrontotherium'
- 'Fossendorhinus belongs to Rhadinorhinina'
- 'Gnathotitan belongs to Embolotheriita'
- 'Heterotitanops parvus is a nomen dubium'
- 'Hyotitan thomsoni is a nomen dubium'
- 'Telmatherium cultridens is a subjective synonym of Telmatherium validus'
- 'Manteoceras foris is a nomen dubium'
- 'Manteoceras pratensis is a nomen dubium'
- 'Manteoceras uintensis is a subjective synonym of Metatelmatherium ultimum'
- 'Manteoceras washakiensis is a subjective synonym of Telmatherium validus'
- 'Megacerops belongs to Brontotheriita'
- 'Megacerops coloradensis belongs to Megacerops'
- 'Duchesneodus primitivum is a nomen dubium'
- 'Menodontidae is an invalid subgroup of Brontotheriidae'
- 'Brontotherium platyceras is a subjective synonym of Megacerops coloradensis'
- 'Menops is a subjective synonym of Megacerops'
- 'Mesatirhinus belongs to Dolichorhinini'
- 'Mesatirhinus petersoni is a subjective synonym of Mesatirhinus junius'
- 'Dolichorhinus superior is a subjective synonym of Dolichorhinus hyognathus'
- 'Metarhinus belongs to Rhadinorhinina'
- 'Metarhinus abbotti belongs to Metarhinus' according to Riggs 1912
- 'Metarhinus abbotti belongs to Metarhinus'
- 'Metarhinus cristatus is a nomen dubium'
- 'Metarhinus earlei is a nomen dubium'
- 'Metarhinus fluviatilis belongs to Metarhinus'
- 'Metarhinus mongoliensis is recombined as Microtitan mongoliensis'
- 'Metarhinus pater is a nomen dubium'
- 'Metarhinus riparius is a subjective synonym of Metarhinus fluviatilis'
- 'Metatelmatheriinae is a subjective synonym of Telmatheriinae'
- 'Metatelmatherium belongs to Telmatheriina'
- 'Metatelmatherium cristatum belongs to Metatelmatherium' according to W. Granger and W. K. Gregory 1938
- 'Metatelmatherium cristatum is a subjective synonym of Metatelmatherium ultimum'
- 'Metatelmatherium lahirii belongs to Metatelmatherium' according to Pilgrim 1925
- 'Metatelmatherium lahirii is a nomen dubium'
- 'Metatelmatherium parvum is a nomen dubium'
- 'Metatitan belongs to Embolotheriita'
- 'Metatitan khaitshinus belongs to Metatitan'
- 'Metatitan khaitshinus belongs to Metatitan' according to Yanovskaya 1954
- 'Metatitan primus belongs to Metatitan'
- 'Metatitan progressus is recombined as Nasamplus progressus'
- 'Metatitan relictus belongs to Metatitan'
- 'Metatitan reshetovi belongs to Metatitan' according to Yanovskaya 1980
- 'Metatitan reshetovi is a subjective synonym of Metatitan khaitshinus'
- 'Microtitan belongs to Brontotheriini'
- 'Microtitan elongatus belongs to Microtitan' according to Qi 1987
- 'Microtitan elongatus is a nomen dubium'
- 'Nanotitan is a subjective synonym of Nanotitanops'
- 'Nanotitanops belongs to Brontotheriini'
- 'Nanotitanops shanghuangensis belongs to Nanotitanops'
- 'Nasamplus belongs to Embolotheriita'
- 'Notiotitanops belongs to Brontotheriita'
- 'Notiotitanops mississippiensis belongs to Notiotitanops'
- 'Pachytitan belongs to Brontotheriina'
- 'Pachytitan ajax belongs to Pachytitan'
- 'Palaeosyopinae belongs to Brontotheriidae'
- 'Palaeosyops belongs to Palaeosyopinae'
- 'Palaeosyops borealis is recombined as Eotitanops borealis'
- 'Palaeosyops hyognathus is recombined as Dolichorhinus hyognathus'
- 'Palaeosyops junior is recombined as Mesatirhinus junius'
- 'Manteoceras manteoceras is a subjective synonym of Telmatherium validus'
- 'Palaeosyops megarhinus is a subjective synonym of Mesatirhinus junius'
- 'Dolichorhinus vallidens is a nomen dubium'
- 'Menodus is a subjective synonym of Megacerops'
- 'Parabrontops belongs to Brontotheriita'
- 'Pollyosbornia belongs to Embolotheriita'
- 'Protembolotherium belongs to Embolotheriita'
- 'Protembolotherium efremovi belongs to Protembolotherium' according to Yanovskaya 1954
- 'Protembolotherium efremovi belongs to Protembolotherium'
- 'Protitan belongs to Brontotheriina'
- 'Protitan cingulatus is a nomen dubium'
- 'Protitan major is a nomen dubium'
- 'Protitan major belongs to Protitan' according to Huang and Zheng 2004
- 'Protitan minor belongs to Protitan'
- 'Protitanops belongs to Brontotheriita'
- 'Protitanops curryi belongs to Protitanops'
- 'Protitanotherium belongs to Brontotheriina'
- 'Protitanotherium andrewsi is recombined as Rhinotitan andrewsi'
- 'Protitanotherium grangeri is recombined as Protitan grangeri'
- 'Protitanotherium koreanicum is a nomen dubium'
- 'Protitanotherium koreanicum belongs to Protitanotherium' according to Takai 1939
- 'Rhinotitan mongoliensis is a nomen dubium'
- 'Protitanotherium superbum is a subjective synonym of Protitanotherium emarginatum'
- 'Pygmaetitan belongs to Embolotheriita'
- 'Pygmaetitan panxianensis belongs to Pygmaetitan'
- 'Pygmaetitan panxianensis belongs to Pygmaetitan' according to Miao 1982
- 'Qufutitan belongs to Telmatheriina'
- 'Qufutitan zhoui belongs to Qufutitan'
- 'Qufutitan zhoui belongs to Qufutitan' according to Wang and Wang 1997
- 'Rhadinorhininae was reranked as the subtribe Rhadinorhinina and belongs to Brontotheriini'
- 'Rhinotitan belongs to Brontotheriina'
- 'Rhinotitan orientalis belongs to Rhinotitan' according to Yanovskaya 1957
- 'Rhinotitan orientalis is a nomen dubium'
- 'Rhinotitan quadridens belongs to Rhinotitan' according to Xu and Chiu 1962
- 'Rhinotitan quadridens is a nomen dubium'
- 'Sivatitanops rugosidens belongs to Sivatitanops' according to Pilgrim 1925
- 'Sivatitanops rugosidens is a nomen dubium'
- 'Sphenocoelus belongs to Dolichorhinini'
- 'Sphenocoelus uintensis belongs to Sphenocoelus'
- 'Sthenodectes belongs to Brontotheriini'
- 'Sthenodectes australis is a subjective synonym of Protitanotherium emarginatum'
- 'Sthenodectes priscus is a subjective synonym of Sthenodectes incisivum'
- 'Symborodon is a subjective synonym of Megacerops'
- 'Tanyorhinus blairi is a subjective synonym of Sphenocoelus uintensis'
- 'Tanyorhinus bridgeri is a subjective synonym of Sphenocoelus uintensis'
- 'Tanyorhinus harundivorax is a nomen dubium'
- 'Teleodus is a subjective synonym of Megacerops'
- 'Duchesneodus californicus is a nomen dubium'
- 'Duchesneodus thyboi is a nomen dubium'
- 'Teleodus uintensis is recombined as Duchesneodus uintensis'
- 'Telmatheriinae was reranked as the subtribe Telmatheriina and belongs to Brontotheriini'
- 'Telmatherium belongs to Telmatheriina'
- 'Telmatherium accola is a nomen dubium'
- 'Telmatherium advocata is a nomen dubium'
- 'Telmatherium altidens is recombined as Pollyosbornia altidens'
- 'Telmatherium berkeyi is recombined as Gnathotitan berkeyi'
- 'Sivatitanops birmanicum is a nomen dubium'
- 'Telmatherium incisivum is recombined as Sthenodectes incisivum'
- 'Telmatherium ultimum is recombined as Metatelmatherium ultimum'
- 'Telmatherium validus belongs to Telmatherium'
- 'Dolichorhinus cornutum is a subjective synonym of Dolichorhinus hyognathus'
- 'Telmatotherium diploconum is recombined as Fossendorhinus diploconus'
- 'Titanodectes ingens is a subjective synonym of Embolotherium grangeri'
- 'Titanodectes minor is a subjective synonym of Embolotherium grangeri'
- 'Titanops is a subjective synonym of Megacerops'
- 'Titanotherium is a subjective synonym of Megacerops'
- 'Wickia belongs to Telmatheriina'
- 'Wickia brevirhinus belongs to Wickia'