By Raymond C. Moore

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Extra resources for Treatise on Invertebrate Paleontology - Part Q - Arthropoda 3 Crustacea Ostracoda

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And sh. I 2B limestones. argillaceous Is.. dolomitic Is.. interbedded sandy shale Manchuriella Protahed inia yunnanensis I sandy shale interbedded with dalamitic Is, K utsingocephalus Douposiella 48 gray argillaceous and dolomitic limestones Redlichia sp Hoffetella transversa 155 Uppep gray-green sandy sh. interbedded with thin sandstone layers. lower: gray thick quartz ss. interbedded wi th sandy shale Palaeolenus Redlichia mai Dark gray-block shale and sandy sh. _, 67 c a .. - -£3 ~ "Q E a U ..

For an excellent discussion of the age, see Misch, 1942). Chang (1980) also discussed the problem of the lower boundary of the Cambrian in eastern Yunnan Province, especially in the column exposed at Jinning (Junyang). Below the trilobite Parabadie/la there occurs a shelly fauna with hyolithids, brachiopods, gastropods, monoplacophorids, tommotidiids, conodontophorids, rostroconchidiids, and merismoconchidiids. ). , 1989). , 1979), from where they wedge out gradually toward the northeast (Figure 11-12).

A later study of faunas (Lu, 1981) suggested the existence of three Cambrian 'realms' of trilobites (Table II-5). Wang et al. (1981) presented a tabulation of Cambrian brachiopod assemblages (Table II-6). Huo Shicheng et al. (1989) reported on distribution of the Cambrian bradoriida (marine small bivalve), and on the Cambrian stratigraphic successions throughout China. The main conclusion of their study is that during Cambrian time, though the lithologic successions vary, all seas were connected with each other.

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Treatise on Invertebrate Paleontology - Part Q - Arthropoda 3 Crustacea Ostracoda by Raymond C. Moore

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