(PDF)于2015-02-24). Mayr, G. & Ritchter, G. (2011) Exceptionally preserved plant parenchyma in the digestive tract indicates a herbivorous diet in the Middle Eocene
(PDF)存档于2015-02-24). Mayr, G. & Ritchter, G. (2011) Exceptionally preserved plant parenchyma in the digestive tract indicates a herbivorous diet in the Middle Eocene
2018]. (原始内容存档于2020-12-03). Gerald Mayr, Exceptionally preserved plant parenchyma in the digestive tract indicates a herbivorous diet in the Middle Eocene
为属于恐鹤科,但如鸮鹫一样,他们也可能不属于恐鹤科。 Gerald Mayr, Exceptionally preserved plant parenchyma in the digestive tract indicates a herbivorous diet in the Middle Eocene