TABLE S1. Family Whiteiidae: Content, geographic distribution, and age.

Atacamaia Arratia Atacamaia solitaria Quebrada Lower Jurassic, Naranjo and and Schultze herein Arratia and Schultze Vaquillas middle to upper Covacevich,

herein Altas, Sinemurian 1979;

Cordillera de (199–191 Ma) Covacevich

Domeyko, and

northern Chile Escobar,

1979;

Arratia and

Schultze,

1999

Axelia Stensiö, 1921 Axelia elegans Mount Lower Triassic, Schaeffer

Stensiö, 1921 Congress, Olenekian (251– and

West 247 Ma) Magnus,

Spitsbergen 1976;

Cloutier,

1990

Axelia robusta Mount Lower Triassic, Schaeffer

Stensiö, 1921 (type Congress, Olenekian (251– and

species) West 247 Ma) Magnus,

Spitsbergen 1976;

Cloutier,

A-1 1990)

Guizhoucoelacanthus Guizhoucoelacanthus Xinpu, Upper Triassic, Liu et al.

Liu et al., 2006 guanlingensis Liu et Guizhou Carnian (235– 2006; Geng

al., 2006 (type Province; 228 Ma) et al.,

species) Fuyuan, Middle Triassic, 2009).

Yunnan Ladinian (242–

Province, 235 Ma)

China, Asia

Piveteauia Lehman, Piveteauia Madagascar, Lower Triassic, Cloutier,

1952 madagascariensis Africa upper Induan, 1990;

Lehman, 1952 Middle Beltan,

Sakamena 1996

Group (252 Ma)

Whiteia Moy- Whiteia africanus Orange Free Lower Triassic Forey, 1998

Thomas, 1935 (Broom, 1905) State, South

Africa

Whiteia nielseni Cape Stosch, Lower Triassic, Nielsen,

Forey, 1998 East Greenland Induan, 1936;

Nordenskiöld Schaeffer

Sub-Group, and

Wordie Creek Magnus,

Formation (252– 1976; Forey

251 Ma) 1998

A-2 Whiteia tuberculata Madagascar, Lower Triassic, Schaeffer

Moy-Thomas, 1935 Africa Middle and

Sakamena Magnus,

Group (252 Ma) 1976;

Cloutier,

1990;

Beltan,

1996

Whiteia woodwardi Madagascar, Lower Triassic, Schaeffer

Moy-Thomas, 1935 Africa Middle and

(type species) Sakamena Magnus,

Group (252 Ma) 1976;

Cloutier,

1990;

Beltan,

1996

Whiteia sp. Madagascar, Lower Triassic, Nielsen,

Africa Middle 1936

Sakamena

Group (252 Ma)

A-3 Whiteia sp. Needham Lower Triassic, Schaeffer

Creek-Graham lower and

River-Horn Olenekian, Magnus,

Creek, British Toad-Grayling 1976

Columbia, Formation (251

Canada Ma)

Whiteia sp. Wapiti Lake, Lower Triassic, Gardiner,

British lower 1966;

Columbia, Olenekian, Schaeffer

Canada Sulphur and

Mountain Magnus,

Formation, 1976;

Member (251 Cloutier,

Ma) 1990

Whiteia sp. Banff-Massive, Lower Triassic Schaeffer

Alberta, and

Canada Magnus,

1976

Wimania Stensiö, Wimania Mount Lower Triassic, Cloutier,

1921 multirostrata Congress, Olenekian, 1990

Stensio, 1921 Mount Sassendalen

Rotunda, Group, Sticky

Mount Trident, Keep Formation

A-4 Mount Milne (251-247 Ma)

Edwards, West

Spitsbergen

Wimania sinuosa Mount Lower Triassic, Schaeffer

Stensiö, 1921 (type Congress and Olenekian, and species) Mount Sassendalen Magnus,

Andersson, Group, Sticky 1976

West Keep Formation

Spitsbergen (251–247 Ma)

Wimania sp. Stensiö, Mount Milne Lower Triassic, Schaeffer

1921 Edwards and Olenekian, and

Mount Trident, Sassendalen Magnus,

West Group, Sticky 1976;

Spitsbergen. Keep Formation Cloutier,

(251–247 Ma) 1990

A-5