Environmental Engineering Reference
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FIGURE 3
Trace fossils from Late Carboniferous-Early Permian lacustrine and marginal-marine
glacigenic deposits of Gondwanaland basins. All specimens occur in the Itarar´ Group thin-bedded
rhythmites (Paran´ Basin, southern Brazil) except (H), which comes from the Agua Colorada For-
mation (Paganzo Basin, north-western Argentina). (A)
Cochlichnus anguineus
(
Ca
) and
Hormo-
siroidea meandrica
(
Hm
). (B)
Cruziana problematica
. (C)
Rusophycus
cf.
carbonarius
. (D)
Treptichnus pollardi
. (E)
Nereites
isp. (
Ne
) and
Helminthopsis
isp. (
Ht
). (F)
Helminthoidichnites
tenuis
. (G)
Glaciichnium
isp. (H)
Undichna insolentia
. (I)
Gordia
(
¼Mermia
)
carickensis
.
(J)
Gordia marina
. (K)
Lockeia siliquaria
. (L) and (M)
Protovirgularia
isp. Specimens (E), (I),
and (M) are preserved as negative epireliefs, whereas all other specimens are preserved as positive
hyporeliefs. Scale bars
¼
10 mm.
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