protostegidとは 意味・読み方・使い方

名詞

protostegid (複数形 protostegids)

1. (zoology) Any turtle in the family Protostegidae.
   • 2012, Donald B. Brinkman, editor, Morphology and Evolution of Turtles:

     Loss of scutes (かつ corresponding loss of sucli^[sic] on the underlying shell plates) is widely regarded as a derived condition that has occurred independently in trionychids, advanced carettochelyids (Carettochelyidae), and derived sea turtles such as dermochelyids and protostegids (e.g., Meylan 1988; Hirayama かつ Chitoku 1996).