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![Several trace fossils and trace intersections in probable brachylophosaur gut contents: (1) multiple trace fossils, including several long, paired trace fossils across much of the photograph and an apparent example of a trace crossing a pair (lower right corner; thoracic sample UCM 98081); (2) trace fossils in cross-sectional view, showing elliptical sections of a loop (ischial sample UCM 98096); (3) an example of paired traces: two trace fossils are either coming together or separating in the lower left corner, with a sustained connection and undeformed walls for at least 1.1 mm; note that the right trace of the pair crosses over another trace in the upper right corner, which shows a circular cross section (thoracic sample UCM 98082; holotype of Parvitubulites striatus n. gen. n. sp.); (4) a close-up on a segment of tripled traces, emphasizing the shared walls (thoracic sample UCM 98082); (5) a close-up on part of the trace fossils in Figure 3.1, one of the best examples of paired traces, focused on a section with a matched directional change (thoracic sample UCM 98081); (6) fine striae incised in the inner surface of a trace lining (thin, evenly spaced lines following the overall direction of the trace) (thoracic sample UCM 98081).]()
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Parvitubulites striatus
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Journal Article
Trace fossils of possible parasites inside the gut contents of a hadrosaurid dinosaur, Upper Cretaceous Judith River Formation, Montana Available to Purchase
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 March 2016
Journal of Paleontology (2016) 90 (2): 279–287.
... previously, and herein described as Parvitubulites striatus n. gen. n. sp. Either autochthonous (parasites) or allochthonous (scavengers) worms may have created the trace fossils, but taphonomic factors suggest that autochthonous burrowers are more likely. Several lines of evidence, such as constant...
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Several trace fossils and trace intersections in probable brachylophosaur g... Available to Purchase
in Trace fossils of possible parasites inside the gut contents of a hadrosaurid dinosaur, Upper Cretaceous Judith River Formation, Montana
> Journal of Paleontology
Published: 01 March 2016
mm; note that the right trace of the pair crosses over another trace in the upper right corner, which shows a circular cross section (thoracic sample UCM 98082; holotype of Parvitubulites striatus n. gen. n. sp.); ( 4 ) a close-up on a segment of tripled traces, emphasizing the shared walls
