Environmental Engineering Reference
In-Depth Information
TABLE 1
Morphology of Trace Fossils Found in Fluvial Successions and
Ichnogenera that can be Included in Each Category
Category
name/
abbreviation
Description
Included ichnogenera
Simple
horizontal trail
Simple burrow/trails on bedding
plane
Cochlichnus, Mermia, Gordia,
Helminthoidichnites,
Helminthopsis, Archaeonassa,
Spirodesmos,“Hormosiroidea”
Sinusoidal trail One or more sinusoidal trails on
bedding plane
Undichna
Bilobed
burrow/trail
Bilobed burrow/trail on bedding
plane
Cruziana, Didymaulichnus,
Diplopodichnus,
Didymaulyponomos
Arthropod
trackway
Two or more parallel, linear, or
sinuous rows composed of
discrete simple traces on bedding
plane
Diplichnites, Umfolozia,
Hexapodichnus, Stiallia,
Protichnites, Striatichnium,
Monomorphichnus,
Palmichnium,
Merostomichnites, “scratch
traces”
Trough-like
relief
Isolated trough-like relief,
recording to some extent the
latero-ventral morphology of the
producer
Rusophycus, Lockeia,
Gluckstadtella, Selenichnites,
Svalbardichnus
Horizontal
burrow
Simple horizontal burrow with
massive filling
Palaeophycus, Planolites,
Fucusopsis, Tumblagoodichnus,
Ctenopholeus
Burrow system
Horizontal burrow system
Spongeliomorpha,
“Thalassinoides”
Meniscate
burrow
Simple meniscate burrow,
surface ornamentation, and a
discrete wall may be present
Scoyenia, Taenidium
(
Naktodemasis), Beaconites,
Ancorichnus
¼
Simple vertical
burrow
Simple burrow at high angle to
bedding
Skolithos (
Tigillites), sediment
displacement shaft, escape traces
¼
J-, U-, or Y
vertical burrow
J-, U-, or Y-shaped burrow at high
angle to bedding
Arenicolites, Psilonichnus,
Diplocraterion, Polykladichnus,
Camborygma, Loloichnus,
Scaphichnium, Macanopsis,
Cornulatichnus, Capayanichnus,
Spirographites (
Lunulichnus),
Tambia, “staphyllinid burrow”
¼
Continued
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