Fig. 8
From: A dynamic and collaborative database for morphogeometric information of trilobites
Morphological variability among specimens considering among-genus and among-observers sources of error. Note the increase in morphological variability among-observers when slightly changing the location of a landmark that makes up for the ending point of a semilandmark curve (orange shade). Abbreviations: config.: configuration, LM: landmarks; obs.: observer, var.: variability.
