Metabolic characteristics of trilobite ecomorphotypes, based on allometry of respiratory area.

定量重建了已灭绝的三叶虫节肢动物化石的代谢特征。关注的外骨骼区域为：双侧心包体积；内胸膜区域为呼吸区域；估计轴向体积为呼吸区域所需能量的部位。前两种与后一种的异速生长变化(生长率)在三个生态形态类型的每两个物种上都有记录。记录的异速生长比例指数在Ilaenimform的情况下最高，在olenimform的最低。前一种情况意味着动物的特征可能是肾上腺素激增，而后者的特征是静态的行为模式。

Metabolic characteristics of fossilized extinct trilobite arthropods were quantitatively reconstructed. The exoskeletal area focused on was: doublural volume functioned as pericardium; inner pleural area functioned as the area for respiration; estimated axial volume stated as the place to demand the energy obtained in the respiratory area. Allometric changes (growth rates) of the former two against the last were documented on every two species of three ecomorphotypes..The rate of documented allometric scaling exponents appeared as highest in the case of illaenimorph and lowest in olenimorph. The former case means that the animal is likely characterized by the adrenaline rush in imergence, and the latter by static mode of behaviour.