[mass noun] The formation or presence of tubercles, especially of a specified type.‘more derived species possess three lateral ridges and increased tuberculation of the carapace’
- ‘Coarse bifurcating ribs and tuberculation have been interpreted as a defensive measure; either by strengthening the shell or by providing visual camouflage.’
- ‘Cranidia of D. fillmorensis have considerably denser tuberculation than those of D. ovata, and this is matched by the sculpture of the librigenae.’
- ‘Margin of carapace demarcated with a broad shelf; edges characterized with rather coarse tuberculation that fades toward anterolateral and orbital margin field.’
- ‘Thus, strong tuberculation induces an increased thickness of the ammonitic whorl, with a maximum thickness located midflank and sometimes even higher on the whorl.’
- ‘The South American A. patriciae has spines more similarly placed to those of A. beetsi than to the new species, and its dorsal internal tuberculation forms a more distinctive bilobed pattern; it closely resembles A. aff. patriciae.’
Mid 19th century: from Latin tuberculum (see tubercle)+ -ation.