True-False
Because it may be preserved in rocks that do not
normally preserve dinosaur body fossils is an advantage of a dinosaur trackway.
An
advantage of a dinosaur trackway is that it may be preserved in rocks that do
not normally preserve dinosaur body fossils.
Because it reflects dinosaur behavior while the
dinosaur was alive is an advantage of a dinosaur trackway.
An
advantage of a dinosaur trackway is that it reflects dinosaur behavior while
the dinosaur was alive.
The most likely posture of dinosaurs (that is, an erect
stance) may be interpreted from their trackways.
From
dinosaur trackways, paleontologists have interpreted their most likely posture
(that is, an erect stance).
Right-left pairs of foot impressions with a pes track just in back of or overlapping the posterior edge of a manus track is typically left by walking quadrupedal dinosaurs.
Walking quadrupedal dinosaurs often leave right-left pairs of foot impressions with a pes track just in back of or overlapping the posterior edge of a manus track.
A single footprint tells us nothing about dinosaur
movement.
Nothing
about dinosaur movement can be determined from a single footprint.
The compression shapes of not-so-well-preserved tracks
can be used to distinguish the major groups of dinosaurs.
The
major groups of dinosaurs can be distinguished using the compression shapes of
not-so-well-preserved tracks.
The compression shapes of not-so-well-preserved tracks
can be used to distinguish the dinosaur trackmaker at the species level.
A
dinosaur trackmaker can be distinguished at the species level using the
compression shapes of not-so-well-preserved tracks.
Most dinosaur tracks are preserved as undertracks.
Theropod tracks are the most common dinosaur tracks.
The most common dinosaur tracks were made by theropods.
Complications arise in classifying dinosaur footprints
because it is not always easy to match a track made by a fleshed out foot with
the bones of the foot that are all that make up the fossil record; tracks may
have been made by an unknown species of dinosaur; or there may be confusion
between tracks of juvenile dinosaurs of one species with those of small adults
from another (but morphologically similar) adult species.
That it is not always easy to match a track made by a fleshed out foot with the bones of the foot that are all that make up the fossil record; that tracks may have been made by an unknown species of dinosaur; or that there may be confusion between tracks of juvenile dinosaurs of one species with those of small adults from another (but morphologically similar) adult species are some of the complications that arise in classifying dinosaur footprints.
Dinosaur speed can be calculated using a technique developed by MacNeil Alexander that uses the stride length and footprint size in dinosaur trackways together with the leg length (hip height) measured from dinosaur skeletons.
MacNeil
Alexander developed a technique that uses the stride length and footprint size
in dinosaur trackways together with the leg length (hip height) measured from
dinosaur skeletons to calculate dinosaur speed.
Most dinosaur trackways show that they were running at
a fast speed.
Dinosaurs
were running at a fast speed when most trackways were made.
The fastest dinosaur speeds have been calculated for
small- to medium-sized theropods.
Tracks
from small- to medium-sized theropods have yielded the fastest calculated
dinosaur speeds.
That dinosaurs swam is clearly shown by dinosaur
trackways.
Dinosaur
trackways clearly show that dinosaurs swam.
That dinosaurs dragged their tails is clearly shown by
dinosaur trackways.
Dinosaur
trackways clearly show that dinosaurs dragged their tails.
In the video “THE DINOSAURS: Flesh on the
Bones,” MacNeil Alexander worked out the speed of the big sauropods that
left tracks exposed in Glen Rose, Texas, and determined that they were running
really fast.
MacNeil Alexander worked out the
speed of the big sauropods that left tracks exposed in Glen Rose, Texas, and
determined that they were running really fast in the video “THE
DINOSAURS: Flesh on the Bones.”
Multiple Choice
__________________ were obligate bipeds.
A. Theropods B. Pachycephalosaurs C. Ceratopsians D. both A. and B. E. none of these
Which major dinosaur clade were obligate bipeds?
A. Ceratopsians B. Pachycephalosaurs C. Theropods D. none of these E. both B. and C.
Theropods were __________________.
A. obligate quadrupeds B. obligate bipeds C. facultative quadrupeds D. facultative bipeds E. none of these
A. facultative bipeds B. facultative quadrupeds C. obligate quadrupeds D. obligate bipeds E. none of these
Which of the following statements about dinosaur track preservation is true?
A. Fine-grained sediments with
just enough water to make them cohesive yield the best preservation of dinosaur
tracks.
B. “Missing tracks” can result from variations in the substrate along a trackway.
C. Too much moisture in sediments causes tracks that collapse on themselves. D. all of these E. none of these
Of the following statements about dinosaur track preservation, which is true?
A. Variations in the substrate along a trackway can result in “missing tracks.” D. none of these E. all of these
B. Tracks that collapse on
themselves can be caused by too
much moisture in sediments.
C. The best preservation of dinosaur tracks is in fine-grained sediments with just enough water to make them cohesive.
Of the following statements about dinosaur
tracks showing dinosaurs moving as individual, which is true?
A. That dinosaurs were moving as
individuals can be shown by parallel trackways with movement in opposite
directions.
B. Parallel trackways that are equally spaced with movement in the same direction and at the same speed show that dinosaurs were moving as individuals.
C. No trackways can be used to show dinosaurs moved as individuals. D. all of these E. none of these
Which
of the following statements about dinosaur tracks showing dinosaurs moving as
individuals is true?
A. That dinosaurs were moving as
individuals can be shown by parallel trackways that are equally spaced with
movement in the same direction and at the same speed.
B. Parallel trackways with movement in opposite directions show that dinosaurs were moving as individuals.
C. No trackways can be used to show dinosaurs moved as individuals. D. none of these E. all of these
In the video “THE DINOSAURS: Flesh on the Bones,” Jim Farlow examines tracks produced by 3-toed, bipedal dinosaurs? To what major dinosaur clade do these dinosaurs belong?
A. Marginocephalia B. Ornithopoda C. Sauropodomorpha D. Theropoda E. Thyreophora
A. Thyreophora B. Sauropodomorpha C. Ornithopoda D. Theropoda E. Marginocephalia
Fill in
the Blank
Track morphology types associated with major dinosaur
clades are shown on the back page, with a letter associated with each specific
track morphology type. In any ONE of the blanks below, where each letter
corresponds to a specific track morphology type, fill in the name of the major
clade that made that specific track morphology type.
Track morphology associated with major dinosaur clades
in shown in Figure 1 on the loose page, with letters associated with each
specific track morphology. In any ONE of the blanks below, where the letters
correspond to a specific track morphology, fill in the name of the major clade
that made that specific track morphology.
Track morphology types associated with major dinosaur
clades are shown on the back page, with a letter associated with each specific
track morphology type. In any TWO of the blanks below, where each letter
corresponds to a specific track morphology type, fill in the name of the major
clade that made that specific track morphology type.
A. ______________________ B. ______________________ C. ______________________
D. ______________________ E. ______________________ F. ______________________
G. ______________________