Environmental Engineering Reference
In-Depth Information
FIGURE 6
Trace fossils from Late Carboniferous-Early Permian glaciomarine deposits of Gond-
wanaland basins. Specimens in (A) to (F) occur in the Itarar
´
Group massive siltstones (Paran
´
Basin, south Brazil), which characterizes firmgrounds. (A)
Palaeophycus striatus
. (B)
Palaeophy-
cus tubularis
. (C)
Gyrolithes
-like burrows. (D)
Rhizocorallium
isp. (dashed lines representing the
inferred U-shaped burrow end). (E) and (J)
Diplocraterion
isp. (F)
Thalassinoides
isp. (G)
Chon-
drites
isp. (H)
Phycosiphon
isp. (I)
Thalassinoides-Planolites-Palaeophycus-Teichichnus
composite
ichnofabric. Specimens in (G) to (J) occur in fine-grained heterolithic deposits of San Gregorio For-
mation (North Uruguayan Basin, (G) and (H)), and Rio do Sul Formation (Itarar´ Group, Paran´
Basin, southern Brazil). All specimens preserved in full relief. Scale bars
¼
10 mm.
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