[dinosaur] Hadrosaurid bone cluster sites in northeastern Mexico

Ben Creisler
[email protected]

A new paper:


Sandra Rybakiewicz, Héctor E. Rivera-Sylva, Wolfgang Stinnesbeck, Eberhard
Frey, José Rubén Guzmán-Gutiérrez, Rafael Vivas González, Rosalba Lizbeth
Nava Rodríguez & José M.Padilla-Gutiérrez (2019)
Hadrosaurs from Cañada Ancha (Cerro del Pueblo Formation; upper
Campanian-?lower Maastrichtian), Coahuila, northeastern Mexico.
Cretaceous Research (advance online publication)
doi: https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1016_j.cretres.2019.104199&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ltM1XwAwnzWZk1vW8wh56kzNuPiMHA8m0E2Vtr-4KbE&s=MP6eymPqtDvuv0urX3WmUHH9hThgnZGSdVXeJbjdhkM&e= 
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.sciencedirect.com_science_article_pii_S0195667119301648&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ltM1XwAwnzWZk1vW8wh56kzNuPiMHA8m0E2Vtr-4KbE&s=ImlyYf2HRLq-2Q2P5HIe6DfJPfOWVPpYIeSGSdfZrDE&e= 

Highlights

Monodominant accumulation of hadrosaurid remains in Cerro del Pueblo
Formation.
Occurrence of ?Velafrons coahuilensis and second undetermined species.
Taphonomy of bones indicates transport by viscose ‘flash flood’ or debris
flow.
Continental setting implies age close to early Maastrichtian.


Abstract

At Cañada Ancha, about 15 km northwest of Saltillo, northeastern Mexico,
deposits of the upper Campanian-?lower Maastrichtian Cerro del Pueblo
Formation exhibit bone clusters of disarticulated hadrosaurids, tentatively
assigned here based on maxillary features to Velafrons coahuilensis and a
second yet undetermined taxon. We discuss the taphonomy of the material as
transported and buried on a delta plain. Orientation and breakage of bones
as well as absence of strong abrasion indicate short-distance and
high-energy transport by a viscose 'flash flood' or debris flow.

<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ltM1XwAwnzWZk1vW8wh56kzNuPiMHA8m0E2Vtr-4KbE&s=OPCNrOm_ZDuh_XKdlvssLXTFLUeD5D20O4McKfbSqMg&e= >
Virus-free.
www.avg.com
<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.avg.com_email-2Dsignature-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dlink-26utm-5Fcampaign-3Dsig-2Demail-26utm-5Fcontent-3Dwebmail&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ltM1XwAwnzWZk1vW8wh56kzNuPiMHA8m0E2Vtr-4KbE&s=OPCNrOm_ZDuh_XKdlvssLXTFLUeD5D20O4McKfbSqMg&e= >
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>