Palæont. [f. Gr. κλῖμαξ ladder + ἴχνος footstep + -ITE.] (See quot. 1880.)
1873. Dawson, Earth & Man, iii. 45. Climactichnites.
1880. Libr. Univ. Knowl., VII. 772. In the sandstone beds … are ladder-like impressions called climactichnites.
