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Figure 1

From: Allopatric molting of Devonian trilobites

Figure 1

Comprehensive stratigraphical column of the Hongguleleng Formation, and trilobite-bearing tuffites and bioclastic limestones in western Junggar. (a) Stratigraphical distribution of Omegops sp. A and other fossils in the Hongguleleng Formation and the Late Devonian sea-level change curve in the study area. (b) Silt- to fine-grained tuffites in the middle part of the MHF in the Bulongguoer section. (c) Exuviae of an Omegops sp. A preserved on the bedding surface of the tuffites. (d) Vertical section of the trilobite-bearing tuffites. (e) Thin-bedded bioclastic limestones, argillaceous limestones and shales unevenly interbedded in the upper part of the LHF. (f) enrolled Omegops sp. A from the upper part of the LHF. (g) Bioclastic limestones contain trilobite fragments and other bioclasts.

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