Moreover, comparative studies have revealed the existence of well-marked ecological and leaf morphological trends [45].
In C198H398, no minimum in the crystal growth rate has been observed; this system does, however, exhibit similar morphological trends to those seen in C294H590 and C246H494.
The ontogeny of these species is then analysed using a holomorph approach [ 10] in order to identify morphological trends that occur during postembryonic development and compared with the known ontogeny of other eurypterid species.
When comparing the results obtained under lab conditions, as discussed in the above paragraphs, to diabetes and hemochromatosis patients (wild type, as well as hereditary hemochromatosis with mutations H63D/H63D, C282Y/C282Y, H63D/C282Y, C282Y/wild type and H63D/wild type), the same morphological trends are observed.
General morphological trends are replicated reasonably well by the code however specific bed forms and rapid erosive responses are less well modelled.
In this paper a nonlinear theoretical model is proposed that is able to mimic the main morphological trends recorded in the experiments.
It is remarkable that the hardness of the hexagonal δ′ phase films is significantly higher than the hardness of the β phase films, in contrast with generally accepted morphological trends.
By contrast, other Mid-Pleistocene specimens show different morphological trends.
A number of studies have identified similar morphological trends associated with local ecophenotypic responses to variable environments [62], [63], [64].
They further suggest that the typical and most obvious polymorphism, corresponding to the fourth lingual indentation, may go together with other concerted changes of the occlusal surface, since the reconstructed outlines point to other morphological trends along PC2 such as a broader vs. narrower anterior part of the tooth (Fig. 2B).
