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—Cont'd
Category
name/
abbreviation
Description
Included ichnogenera
Q 3/3 st
Quadrupedal, homopodial,
tridactyl short thick digit
impressions
Macrauchenichnus,
Eumacrauchenichnus,
Plagiolophustipus, Equioidea
footprints, rhinocere footprints
Q 3/3 high pa
Quadrupedal, heteropodous,
tridactyl, high pace angulation
(150-170
), size: 20-40 mm
Delatorrichnus
Q 4/5
Quadrupedal, homopodial or
heteropodous, tetradactyl
manus, pentadactyl pes, low
pace angulation, size: less than
135 mm
Limnopus, Palaeosauropus,
Baropezia, Batrachichnus
(
Cursipes, Dromillopus),
“salamander tracks”
¼
Q rounded 5/5 Quadrupedal, rounded
impression, pentadactyl, short
digit imprints, homopodial
Dicynodontipus
(
Gallegosichnus),
“Chelichnus”
¼
Q oval
Quadrupedal, oval to kidney-
shaped tracks, usually lacking
digit impressions
Venatoripes,
Neomegatherichnum, kidney-
like footprints, oval impressions
Q rounded
Quadrupedal, rounded,
homopodial, usually lacking
digit impressions
Stegomastodonichnum,
Hippipeda footprints
Q 5/5 sl
Quadrupedal, heteropodous,
pentadactyl, manus and pes long
and slender, claw-bearing digits,
which are distally curved inward,
pace angulation 70-130
, size:
10-80 mm
Rhynchosauroides, Dromopus,
Tambachichnium, Rotodactylus,
Varanopus, Gilmoreichnus,
Hylopus, Hyloidichnus,
Erpetopus
Q 5/5 tk
Quadrupedal, heteropodous,
pentadactyl, plantigrade, pace
angulation (80-130
), size: up to
400 mm
Dimetropus, Pseudobradypus,
Ichniotherium, Amphisauropus,
Capitosauroides, Pachypes,
Asperipes
Q 5/5 d
Quadrupedal, manus and pes
represented sets of dot-like
impressions with a curved
arrangement
Episcopocus, Pentasauropus
Q 5/5 high pa
Quadrupedal, homopodial,
pentadactyl, high pace
angulation, less than 20 mm
in size
Ameghinichnus
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