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Journal of Palaeogeography
Fig. 14 | Journal of Palaeogeography

Fig. 14

From: Diversified calcimicrobes in dendrolites of the Zhangxia Formation, Miaolingian Series (Middle Cambrian) of the North China craton

Fig. 14

Photomicrographs display Girvanella that is paragenetic with small chamber-like colonies of Epiphyton within the leiolite in top part of the subsequence III of the Zhangxia Formation at the Anjiazhuang section, Shandong Province. a Interclated intergrowth of the Bacinella-like fabric (B) and the dense micritic fabric with a possible microburrow (white arrow), as well as intergrowth of the Epiphyton (E) and the Girvanella (G; strip-like bodies of dense micrites) under low resolution; b, c Enlarged part of a showing an obvious filamentous fossil of Girvanella (G). The Girvanella are aggregated into bundles like the Subtifloria, which however, are distinctly different when compare the Subtifloria with present-day Microcoleus, a special type of Girvanella of highly tangled filaments. The black dots within b and c might be residues of pyrites (P). Photomicrographs were taken under PPL

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