Genus
Formal taxon Extinct

Tristraguloolithus

Zelenitsky et al. 1996

Tristraguloolithus is an oogenus of dinosaur egg from the late Campanian of Alberta.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
4
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
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Classification
Dinosauria Unranked clade
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Theropoda Unranked clade
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Tristraguloolithus Genus
Fossil sites 4 geolocated sites
Distribution
Top countries
🇨🇦 Canada
3
🇲🇽 Mexico
1
Geological formations
Oldman
3
El Gallo
1
Temporal distribution
Campanian (83.6–72.2 Ma)
4
Species (1)
Tristraguloolithus cracioides 84 Ma
Bibliography
Original description
D. K. Zelenitsky, L. V. Hills, and P. J. Currie. 1996. Parataxonomic classification of ornithoid eggshell fragments from the Oldman Formation (Judith River Group; Upper Cretaceous), southern Alberta. Canadian Journal of Earth Sciences 33:1655-1667 DOI ↗
Bibliography (2)
J. S. Cabrera-Hernández, M. Montellano-Ballesteros, and P. D. Roy, D. E. Fastovsky. 2022. Eggshells assemblages and stable isotope composition in the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, Mexico: Paleoenvironmental inferences. Cretaceous Research 138(78):105265 DOI ↗
D. K. Zelenitsky, L. V. Hills, and P. J. Currie. 1996. Parataxonomic classification of ornithoid eggshell fragments from the Oldman Formation (Judith River Group; Upper Cretaceous), southern Alberta. Canadian Journal of Earth Sciences 33:1655-1667 DOI ↗