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What does Gregarious mean?

Gregarious (gri-gair-ee-uhs) is a term applied to dinosaurs for which there is fossilised evidence of group behaviour. Just like modern herding herbivores and flocking birds, paleontologists often take multi-individual bonebeds as evidence that dinosaurs enjoyed the company of others too. While such pile ups could also be the result of flash floods or long-spanning mud traps, evidence of same-species "head-biting" to establish a pecking order, fossilized trackways, and nesting grounds with remains of all growth stages from embryo to adult tell a different story.
Etymology
Gregarious is derived from the Latin "grex" (flock or herd) and "-ārius" (connected with; pertaining to).
Further reading
• José Luis BARCO, José Ignacio CANUDO & José Ignacio RUIZ-OMEÑACA (2005) "Gregarious behaviour in theropod dinosaurs inferred from new data on Therangospodus oncalensis from the Berriasian Fuentesalvo tracksite (Villar del Río, Soria, Spain)".
• M. G. Lockley (2013) "Social behaviour" in "Dinosaur Tracks and Other Fossil Footprints of Europe".
• Currie, Philip J.; Eberth, David A. (2010) "On gregarious behavior in Albertosaurus".
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To cite this page:
Atkinson, L. "DinoChecker FAQ entry :: What does Gregarious mean?"
http://www.dinochecker.com/dinosaurfaqs/what-does-gregarious-mean›. Web access: 18th Oct 2017.
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