Late Cretaceous Angiosperm Woods from the McRae Formation, South-Central New Mexico, USA: Part 2

2018 ◽  
Vol 179 (2) ◽  
pp. 136-150 ◽  
Author(s):  
Emilio Estrada-Ruiz ◽  
Elisabeth A. Wheeler ◽  
Garland R. Upchurch ◽  
Greg H. Mack
Keyword(s):  
New Mexico ◽  
Late Cretaceous ◽  
South Central

Late Cretaceous Angiosperm Woods from the Crevasse Canyon and McRae Formations, South-Central New Mexico, USA: Part 1

2012 ◽  
Vol 173 (4) ◽  
pp. 412-428 ◽  
Author(s):  
Emilio Estrada-Ruiz ◽  
Garland R. Upchurch ◽  
Elisabeth A. Wheeler ◽  
Greg H. Mack
Keyword(s):  
New Mexico ◽  
Late Cretaceous ◽  
South Central

Sierraceratops turneri, a new chasmosaurine ceratopsid from the Hall Lake Formation (Upper Cretaceous) of south-central New Mexico

2021 ◽  
pp. 105034
Author(s):  
Sebastian G. Dalman ◽  
Spencer G. Lucas ◽  
Steven E. Jasinski ◽  
Nicholas R. Longrich
Keyword(s):  
New Mexico ◽  
Upper Cretaceous ◽  
South Central ◽  
Lake Formation

scholarly journals Transitional evolutionary forms in chasmosaurine ceratopsid dinosaurs: evidence from the Campanian of New Mexico

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9251
Author(s):  
Denver W. Fowler ◽  
Elizabeth A. Freedman Fowler
Keyword(s):  
New Mexico ◽  
Phylogenetic Relationship ◽  
Late Cretaceous ◽  
Phylogenetic Hypothesis ◽  
Stepwise Change ◽  
Horseshoe Canyon Formation

Three new chasmosaurines from the Kirtland Formation (~75.0–73.4 Ma), New Mexico, form morphological and stratigraphic intermediates between Pentaceratops (~74.7–75 Ma, Fruitland Formation, New Mexico) and Anchiceratops (~72–71 Ma, Horseshoe Canyon Formation, Alberta). The new specimens exhibit gradual enclosure of the parietal embayment that characterizes Pentaceratops, providing support for the phylogenetic hypothesis that Pentaceratops and Anchiceratops are closely related. This stepwise change of morphologic characters observed in chasmosaurine taxa that do not overlap stratigraphically is supportive of evolution by anagenesis. Recently published hypotheses that place Pentaceratops and Anchiceratops into separate clades are not supported. This phylogenetic relationship demonstrates unrestricted movement of large-bodied taxa between hitherto purported northern and southern provinces in the late Campanian, weakening support for the hypothesis of extreme faunal provincialism in the Late Cretaceous Western Interior.

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