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Troodon

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Journal Article
Published: 15 December 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 1039–1044.
...Angelica Torices; Gregory F. Funston; Shannon T. Kraichy; Philip J. Currie Abstract The systematic position of the small theropod dinosaur Troodon has had a confusing history and has been identified at different times as a lizard, a pachycephalosaurid, and a coelurosaurid. Troodon is now most...
FIGURES | View All (4)
Journal Article
Journal: Paleobiology
Published: 11 March 2013
Paleobiology (2013) 39 (2): 278–296.
...David J. Varricchio; Frankie D. Jackson; Robert A. Jackson; Darla K. Zelenitsky Abstract Using tangential thin sections, we examined variation in porosity and water vapor conductance across two eggs of Troodon formosus , a small (∼50 kg) theropod dinosaur from the North American Upper Cretaceous...
FIGURES
Journal Article
Journal: PALAIOS
Published: 01 May 2008
PALAIOS (2008) 23 (5): 322–328.
...Anthony R. Fiorillo Abstract Exceptionally large teeth attributable to the theropod genus Troodon are abundant in Upper Cretaceous rocks (Campanian–Maastrichtian) of northern Alaska. The dominance of low-angle light in this Cretaceous high-latitude environment seems to have selected...
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FIGURE 2 —Plot of  <span class="search-highlight">Troodon</span>  tooth length-width measurements (mm). Data from...
Published: 01 May 2008
FIGURE 2 —Plot of Troodon tooth length-width measurements (mm). Data from published reports or directly from museum specimens. Overall sample size, N = 103. Average length and width for Troodon teeth from Alaska are 9.8 mm and 6.5 mm, respectively. Average length and width for Troodon teeth
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FIGURE 4 —Wear facet of a  <span class="search-highlight">Troodon</span>  tooth from central Montana (Academy of ...
Published: 01 May 2008
FIGURE 4 —Wear facet of a Troodon tooth from central Montana (Academy of Natural Sciences of Philadelphia 17780) representative of all teeth examined from central Montana ( Fiorillo and Currie, 1994 ). Note that such wear features as pitting, indicative of hard food items (e.g., Fiorillo, 1998
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<span class="search-highlight">Troodon</span> formosus  (upper) and  Latenivenatrix mcmasterae  (lower) specimens...
Published: 18 June 2021
Table 1. Troodon formosus (upper) and Latenivenatrix mcmasterae (lower) specimens discussed in this paper.
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Reproductive nesting traces for  <span class="search-highlight">Troodon</span> formosus , including the nesting t...
Published: 18 June 2021
Fig. 2. Reproductive nesting traces for Troodon formosus , including the nesting trace as photographed at an earlier (A) and later (B) stage of excavation and egg clutch MOR 963 (C). The egg clutch, still largely covered with a mudstone, is represented by the oval area at the center of the nest
Journal Article
Published: 23 September 2021
Canadian Journal of Earth Sciences (2021) 58 (10): 981–992.
...David C. Evans; Caleb M. Brown; Hailu You; Nicolás E. Campione The first recorded pachycephalosaurid dinosaur from outside of North America, “ Troodon ” bexelli , was described from the Upper Cretaceous of Nei Mongol (Inner Mongolia) Autonomous Region, China, in 1953 based on a partial parietal...
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Journal Article
Published: 18 June 2021
Canadian Journal of Earth Sciences (2021) 58 (9): 796–811.
...Table 1. Troodon formosus (upper) and Latenivenatrix mcmasterae (lower) specimens discussed in this paper. ...
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Zonal dimensions of an ideal  <span class="search-highlight">Troodon</span>  egg.
Published: 11 March 2013
Table 2.  Zonal dimensions of an ideal Troodon egg.
Journal Article
Journal: Paleobiology
Published: 01 January 2021
Paleobiology (2021) 47 (1): 101–114.
...Jason D. Hogan; David J. Varricchio Abstract Troodon formosus , a theropod from the Late Cretaceous, is one of the few species of dinosaurs with multiple nest sites uncovered. It has been consistently demonstrated that eggs within these nests would have been partially buried in life—an exceedingly...
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UAVLP 55489  <span class="search-highlight">Troodon</span>  sp. (A) Labial view. (B) Lingual view. (C) Anterior c...
Published: 15 December 2014
Fig. 1. UAVLP 55489 Troodon sp. (A) Labial view. (B) Lingual view. (C) Anterior carina view. (D) Posterior denticles. (E) Anterior denticles.
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<span class="search-highlight">Troodon</span>  teeth from the Dinosaur Park, Wapiti, and Horseshoe Canyon formati...
Published: 15 December 2014
Fig. 2. Troodon teeth from the Dinosaur Park, Wapiti, and Horseshoe Canyon formations. (A) UAVLP 55456 (Horseshoe Canyon Formation). (B) UAVLP 55376 (Dinosaur Park Formation). (C) UAVLP 48639 (Horseshoe Canyon Formation). (D) UAVLP 48753 (Wapiti Formation). (E) UAVLP 48776 (Wapiti Formation
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Comparison of deinonychosaur frontals.  <span class="search-highlight">Troodon</span>  sp., TMP 1986.049.0010, in...
Published: 30 May 2014
Fig. 1. Comparison of deinonychosaur frontals. Troodon sp., TMP 1986.049.0010, in (A) dorsal, (B) ventral, (C) medial, and (D) lateral views. Holotype of Saurornitholestes robustus , ROM 53568 (cast of SMP VP-1955), in (E) dorsal, (F) ventral, (G) medial, and (H) lateral views
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Results of the pore analysis of  <span class="search-highlight">Troodon</span>  eggs, MOR 750 and MOR 299.
Published: 11 March 2013
Table 3.  Results of the pore analysis of Troodon eggs, MOR 750 and MOR 299.
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A, A  <span class="search-highlight">Troodon</span>  egg from an unhatched egg clutch, MOR 299. This egg is stron...
Published: 11 March 2013
Figure 1.  A, A Troodon egg from an unhatched egg clutch, MOR 299. This egg is strongly crushed and shortened parallel to its long axis. B, Model of an ideal Troodon egg based upon undistorted portions of eggs. MOR 247 provided the dimensions and outline for the lower 104.5 mm, whereas
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<span class="search-highlight">Troodon</span>  nesting trace and clutch. The white plaster jacket covers the uppe...
Published: 11 March 2013
Figure 3.  Troodon nesting trace and clutch. The white plaster jacket covers the upper portion of the clutch (MOR 963) of 24 eggs formerly buried by mudstone. Lower portion of clutch is buried within and nest structure is preserved as micritic limestone. The tape measure is open to 1 m
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FIGURE 3 —Wear facet of a  <span class="search-highlight">Troodon</span>  tooth from Alaska (AK498-V-001), repres...
Published: 01 May 2008
FIGURE 3 —Wear facet of a Troodon tooth from Alaska (AK498-V-001), representative of all teeth examined from northern Alaska. Note that such wear features as pitting, indicative of hard food items (e.g., Fiorillo, 1998a ), are absent from this tooth.
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(A) TLM view of  <span class="search-highlight">Troodon</span> formosus  eggshell (MOR 246). Note the ubiquitous ...
Published: 25 July 2006
Fig. 4. (A) TLM view of Troodon formosus eggshell (MOR 246). Note the ubiquitous presence of a surficial diagenetic layer of calcite capping the eggshell in the upper part of the picture and a faint pale line (arrow) subdividing the external region of the eggshell. Both artifacts could
Journal Article
Published: 01 October 1993
Canadian Journal of Earth Sciences (1993) 30 (10): 2231–2247.
...Philip J. Currie; Xi-Jin Zhao Abstract A new, well-preserved specimen of Troodon formosus is the first to reveal the internal anatomy of the lower part of the braincase. In addition to providing new information on the brain of this highly encephalized dinosaur, the uncrushed bones clear up...