Mexican ceratopsids: Considerations on their diversity and biogeography

Rivera-Sylva, Héctor E.; Frey, Eberhard; Stinnesbeck, Wolfgang; Guzmán-Gutiérrez, José Rubén; González-González, Arturo H.

doi:10.1016/j.jsames.2017.01.008

Cited by 10 publications

(3 citation statements)

References 19 publications

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“…As a result, the regional correlation proposed here is based entirely on outcrops and lithologic characteristics. For the present report, stratigraphic sections were measured at 34 sites to show regional variation across all three of the outcrop belts and Udden (1907, p. 50) "east of Chisos Pen" Udden (1907, p. 46) "near Chisos Pen" Udden (1907, p. 47) "south of Chisos Pen" Udden (1907, p. 47 La Unión (Shiller, 2017) La Salada (Rivera-Sylva et al, 2017) El Tanque la Virgen (Shiller, 2017) Cow Heaven Mountain (section 26)…”

Section: General Character and Distribution Of The Aguja Formationmentioning

confidence: 99%

Supplemental Material: Stratigraphy and depositional history of the Aguja Formation (Upper Cretaceous, Campanian) of West Texas, southwestern USA

Lehman,

al.

2024

Preprint

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Section: General Character and Distribution Of The Aguja Formationmentioning

confidence: 99%

Supplemental Material: Stratigraphy and depositional history of the Aguja Formation (Upper Cretaceous, Campanian) of West Texas, southwestern USA

Lehman,

al.

2024

Preprint

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“…Though locally abundant in some localities in southern Alberta and northern Montana ( e.g ., Centrosaurus apertus ( Lambe, 1904 ), Styracosaurus albertensis ( Lambe, 1913 ), and Pachyrhinosaurus canadensis ( Sternberg, 1950 )), centrosaurines were previously rare or poorly known from other regions of Laramidia. Our expanding knowledge about centrosaurines includes new taxa from the southwestern United States and Mexico ( e.g ., Diabloceratops eatoni ( Kirkland & DeBlieux, 2010 ), Nasutoceratops titusi ( Sampson et al, 2013 ; Lund, Sampson & Loewen, 2016 ), Machairoceratops cornusi ( Lund et al, 2016 ), Yehuecauhceratops mudei ( Rivera-Sylva, Hendrick & Dodson, 2016 ; Rivera-Sylva et al, 2017 ), Crittendenceratops krzyzanowskii ( Dalman et al, 2018 ), Menefeeceratops sealeyi ( Dalman et al, 2021 )) and new and reinterpreted taxa from Montana and Canada ( e.g ., Coronosaurus brinkmani ( Ryan & Russell, 2005 ; Ryan, Evans & Shepherd, 2012 ), Albertaceratops nesmoi ( Ryan, 2007 ), Pachyrhinosaurus. lakustai ( Currie, Langston & Tanke, 2008 ), Styracosaurus ovatus ( McDonald & Horner, 2010 ; Wilson, Ryan & Evans, 2020 ), Spinops sternbergorum Farke et al, 2011 , Medusaceratops lokii ( Ryan, Russell & Hartman, 2010 ; Chiba et al, 2017 ), Pachyrhinosaurus perotorum ( Fiorillo & Tykoski, 2012 ), Xenoceratops foremostensis ( Ryan, Evans & Shepherd, 2012 ), Wendiceratops pinhornensis ( Evans & Ryan, 2015 ), and Stellasaurus ancellae ( Wilson, Ryan & Evans, 2020 )).…”

Section: Introductionmentioning

confidence: 99%

Lokiceratops rangiformis gen. et sp. nov. (Ceratopsidae: Centrosaurinae) from the Campanian Judith River Formation of Montana reveals rapid regional radiations and extreme endemism within centrosaurine dinosaurs

Loewen,

Sertich,

Sampson

et al. 2024

PeerJ

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The Late Cretaceous of western North America supported diverse dinosaur assemblages, though understanding patterns of dinosaur diversity, evolution, and extinction has been historically limited by unequal geographic and temporal sampling. In particular, the existence and extent of faunal endemism along the eastern coastal plain of Laramidia continues to generate debate, and finer scale regional patterns remain elusive. Here, we report a new centrosaurine ceratopsid, Lokiceratops rangiformis, from the lower portion of the McClelland Ferry Member of the Judith River Formation in the Kennedy Coulee region along the Canada-USA border. Dinosaurs from the same small geographic region, and from nearby, stratigraphically equivalent horizons of the lower Oldman Formation in Canada, reveal unprecedented ceratopsid richness, with four sympatric centrosaurine taxa and one chasmosaurine taxon. Phylogenetic results show that Lokiceratops, together with Albertaceratops and Medusaceratops, was part of a clade restricted to a small portion of northern Laramidia approximately 78 million years ago. This group, Albertaceratopsini, was one of multiple centrosaurine clades to undergo geographically restricted radiations, with Nasutuceratopsini restricted to the south and Centrosaurini and Pachyrostra restricted to the north. High regional endemism in centrosaurs is associated with, and may have been driven by, high speciation rates and diversity, with competition between dinosaurs limiting their geographic range. High speciation rates may in turn have been driven in part by sexual selection or latitudinally uneven climatic and floral gradients. The high endemism seen in centrosaurines and other dinosaurs implies that dinosaur diversity is underestimated and contrasts with the large geographic ranges seen in most extant mammalian megafauna.

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“…Centrosaurines are known primarily from northern Laramidia, as far north as the ancient Arctic (Fiorillo and Tykoski, 2012), with many type species in particular coming from Alberta and Montana (e.g., Hatcher, 1907;Sampson, 1995;Farke et al, 2011). However, more recent discoveries of taxa such as Diabloceratops eatoni (Kirkland and DeBlieux, 2010) and Nasutoceratops titusi (Sampson et al, 2013) from southern Utah, and Yehuecauhceratops mudei from northern Mexico (Rivera-Sylva et al, 2017), as well as several taxa that are not diagnostic to the genus level, but referred to the Centrosaurinae from New Mexico (Williamson, 1997) and Mexico (Loewen et al, 2010) expand the centrosaurine geographic range and our knowledge of the habitats in which they once lived. In spite of this large geographic range and the many named centrosaurine taxa, little is known of their biology.…”

mentioning

confidence: 99%

Filling in Gaps in the Ceratopsid Histologic Database: Histology of Two Basal Centrosaurines and an Assessment of the Utility of Rib Histology in the Ceratopsidae

Hedrick

Goldsmith

Rivera-Sylva³

et al. 2019

The Anatomical Record

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Bone histology grants substantial insight into the growth and biology of fossil vertebrates. Many of the major non‐avian dinosaurian clades have been extensively sampled for bone histologic data allowing reconstruction of their growth as well as the assessment of the evolution of growth changes along phylogenies. However, horned ceratopsians are poorly represented in paleohistologic studies. Further, the ceratopsian taxa that have been examined are unevenly sampled phylogenetically with very basal forms and highly derived forms making up the majority of studied taxa. In order to rectify this, we have histologically sampled Avaceratops from Montana and Yehuecauhceratops from northern Mexico to assess how mid‐sized basal centrosaurines grew relative to more basal and derived forms. Based on results from these taxa, basal centrosaurines present a mosaic of growth characters intermediate between those seen in basal ceratopsians and more derived centrosaurines. Further, Yehuecauhceratops has many lines of arrested growth preserved, suggesting that the large number of lines of arrested growth found in a high‐latitude Pachyrhinosaurus specimen may be a result of phylogeny rather than geography. Since lines of arrested growth are not preserved in long bones of many ceratopsians, especially chasmosaurines, we also histologically sampled ribs of Avaceratops and Pachyrhinosaurus. However, the largest ribs were highly remodeled obscuring lines of arrested growth, making it unlikely that rib histology will clarify growth trends in ceratopsians. These centrosaurines add to the growing ceratopsian histological database and demonstrate that basal centrosaurines grew in a manner intermediate between non‐ceratopsid taxa and derived centrosaurines. Anat Rec, 303:935–948, 2020. © 2019 Wiley Periodicals, Inc.

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Mexican ceratopsids: Considerations on their diversity and biogeography

Cited by 10 publications

References 19 publications

Supplemental Material: Stratigraphy and depositional history of the Aguja Formation (Upper Cretaceous, Campanian) of West Texas, southwestern USA

Supplemental Material: Stratigraphy and depositional history of the Aguja Formation (Upper Cretaceous, Campanian) of West Texas, southwestern USA

Lokiceratops rangiformis gen. et sp. nov. (Ceratopsidae: Centrosaurinae) from the Campanian Judith River Formation of Montana reveals rapid regional radiations and extreme endemism within centrosaurine dinosaurs

Filling in Gaps in the Ceratopsid Histologic Database: Histology of Two Basal Centrosaurines and an Assessment of the Utility of Rib Histology in the Ceratopsidae

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