UGA Stratigraphy Lab

The data is in the strata



Amorphognathus ordovicicus Branson and Mehl, 1933
Occurrence: Edenian through Richmondian
Reference: Bergström and Sweet, 1966; Kohut and Sweet, 1968; Sweet, 1979
Includes form-species: Amorphognathus ordovicica Branson and Mehl, 1933 and Ambalodus triangularis Branson and Mehl, 1933

Amorphognathus superbus (Rhodes, 1953)
Occurrence: Edenian and Maysvillian
Reference: Sweet, 1979
Includes form-species: Holodontus superbus Rhodes (1953)