Project 5082: K. L. Atkins-Weltman, M. C. Langer, D. J. Simon, H. N. Woodward, G. F. Funston, E. Snively. 2024. A new oviraptorosaur (Dinosauria: Theropoda) from the end-Maastrichtian Hell Creek Formation of North America. PLOS ONE. 19 (1):e0294901.
Abstract
Caenagnathidae is a clade of derived, Late Cretaceous oviraptorosaurian theropods from Asia and North America. Because their remains are rare and often fragmentary, caenagnathid diversity is poorly understood. Anzu wyliei is the only caenagnathid species currently described from the late Maastrichtian Hell Creek Formation of the USA and is also among the largest and most completely preserved North American caenagnathids. Smaller, less complete caenagnathid material has long been known from the Hell Creek Formation, but it is unclear whether these are juvenile representatives of Anzu or if they represent distinct, unnamed taxa. Here, we describe a relatively small caenagnathid hindlimb from the Hell Creek Formation, and conduct osteohistological analysis to assess its maturity. Histological data and morphological differences from Anzu wyliei and other caenagnathids allow us to conclude that this specimen represents a new species of caenagnathid from the Hell Creek Formation, with a smaller adult body size than Anzu. This new taxon is also distinct from other small caenagnathid material previously described from the area, potentially indicating the coexistence of three distinct caenagnathid species in the Hell Creek Formation. These results show that caenagnathid diversity in the Hell Creek ecosystem has been underestimated.Read the article »
Article DOI: 10.1371/journal.pone.0294901
Project DOI: 10.7934/P5082, http://dx.doi.org/10.7934/P5082
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 5078 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 246 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 529 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:246/0 |
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MorphoBank Project 5082
MorphoBank Project 5082
- Creation Date:
02 February 2024 - Publication Date:
02 February 2024 - Project views: 1163
Authors' Institutions
- Oklahoma State University
- University of Toronto
- Royal Ontario Museum
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 42 | 2 | 4 | 246 | 0 | 0 | 5078 (5048, 0, 30) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29667' (42 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Herrerasaurus ischigualastensis Last Modified in 02/02/24 | 25 | 219 | 219 | 0 | 2 | 0 | 0 | 1 |
[2] † Velociraptor mongoliensis Last Modified in 02/02/24 | 9 | 235 | 235 | 0 | 2 | 0 | 0 | 1 |
[3] † Archaeopteryx lithographica Last Modified in 02/02/24 | 44 | 196 | 196 | 0 | 6 | 0 | 0 | 1 |
[4] † Incisivosaurus gauthieri merged Last Modified in 02/02/24 | 91 | 155 | 155 | 0 | 0 | 0 | 0 | 1 |
[5] † Caudipteryx zoui Last Modified in 02/02/24 | 101 | 144 | 144 | 0 | 1 | 0 | 0 | 1 |
[6] † Avimimus portentosus Last Modified in 02/02/24 | 110 | 133 | 133 | 0 | 3 | 0 | 0 | 1 |
[7] † Avimimus nemegtensis Last Modified in 02/02/24 | 129 | 117 | 117 | 0 | 0 | 0 | 0 | 1 |
[8] † Microvenator celer Last Modified in 02/02/24 | 177 | 69 | 69 | 0 | 0 | 0 | 0 | 1 |
[9] † Oviraptor philoceratops Last Modified in 02/02/24 | 176 | 70 | 70 | 0 | 0 | 0 | 0 | 1 |
[10] † Rinchenia mongoliensis Last Modified in 02/02/24 | 62 | 183 | 183 | 0 | 1 | 0 | 0 | 1 |
[11] † Citipati osmolskae Last Modified in 02/02/24 | 36 | 210 | 210 | 0 | 0 | 0 | 0 | 1 |
[12] † Zamyn khondt oviraptorid Last Modified in 02/02/24 | 18 | 226 | 226 | 0 | 2 | 0 | 0 | 1 |
[13] † Khaan mckennai Last Modified in 02/02/24 | 38 | 208 | 208 | 0 | 0 | 0 | 0 | 1 |
[14] † Conchoraptor gracilis Last Modified in 02/02/24 | 46 | 198 | 198 | 0 | 2 | 0 | 0 | 1 |
[15] † Machairasaurus leptonychus Last Modified in 02/02/24 | 231 | 15 | 15 | 0 | 0 | 0 | 0 | 1 |
[16] † Nemegtomaia barsboldi Last Modified in 02/02/24 | 66 | 179 | 179 | 0 | 1 | 0 | 0 | 1 |
[17] † Heyuannia huangi Last Modified in 02/02/24 | 153 | 92 | 92 | 0 | 1 | 0 | 0 | 1 |
[18] † Heyuannia yanshini Last Modified in 02/02/24 | 56 | 189 | 189 | 0 | 1 | 0 | 0 | 1 |
[19] † Gigantoraptor erlianensis Last Modified in 02/02/24 | 154 | 92 | 92 | 0 | 0 | 0 | 0 | 1 |
[20] † Caenagnathasia martinsoni Last Modified in 02/02/24 | 213 | 33 | 33 | 0 | 0 | 0 | 0 | 1 |
[21] † Citipes elegans Last Modified in 02/02/24 | 193 | 53 | 53 | 0 | 0 | 0 | 0 | 1 |
[22] † Chirostenotes pergracilis Last Modified in 02/02/24 | 113 | 133 | 133 | 0 | 0 | 0 | 0 | 1 |
[23] † Caenagnathus collinsi Last Modified in 02/02/24 | 158 | 88 | 88 | 0 | 0 | 0 | 0 | 1 |
[24] † Anzu wyliei Last Modified in 02/02/24 | 65 | 180 | 180 | 0 | 1 | 0 | 0 | 1 |
[25] † Hagryphus giganteus Last Modified in 02/02/24 | 233 | 13 | 13 | 0 | 0 | 0 | 0 | 1 |
[26] † Elmisaurus rarus Last Modified in 02/02/24 | 172 | 74 | 74 | 0 | 0 | 0 | 0 | 1 |
[27] † Nomingia gobiensis Last Modified in 02/02/24 | 196 | 50 | 50 | 0 | 0 | 0 | 0 | 1 |
[28] † Epichirostenotes curriei Last Modified in 02/02/24 | 212 | 34 | 34 | 0 | 0 | 0 | 0 | 1 |
[29] † Banji long Last Modified in 02/02/24 | 146 | 99 | 99 | 0 | 1 | 0 | 0 | 1 |
[30] † Caudipteryx dongi Last Modified in 02/02/24 | 187 | 59 | 59 | 0 | 0 | 0 | 0 | 1 |
[31] † Jiangxisaurus ganzhouensis Last Modified in 02/02/24 | 143 | 102 | 102 | 0 | 1 | 0 | 0 | 1 |
[32] † Nankangia jiangxiensis Last Modified in 02/02/24 | 172 | 74 | 74 | 0 | 0 | 0 | 0 | 1 |
[33] † Shixinggia oblita Last Modified in 02/02/24 | 228 | 17 | 17 | 0 | 1 | 0 | 0 | 1 |
[34] † Wulatelong gobiensis Last Modified in 02/02/24 | 159 | 87 | 87 | 0 | 0 | 0 | 0 | 1 |
[35] † Yulong mini Last Modified in 02/02/24 | 76 | 168 | 168 | 0 | 2 | 0 | 0 | 1 |
[36] † Huanansaurus ganzhouensis Last Modified in 02/02/24 | 105 | 141 | 141 | 0 | 0 | 0 | 0 | 1 |
[37] † Tongtianlong limosus Last Modified in 02/02/24 | 84 | 162 | 162 | 0 | 0 | 0 | 0 | 1 |
[38] † Corythoraptor jacobsi Last Modified in 02/02/24 | 79 | 167 | 167 | 0 | 0 | 0 | 0 | 1 |
[39] † Apatoraptor pennatus Last Modified in 02/02/24 | 137 | 109 | 109 | 0 | 0 | 0 | 0 | 1 |
[40] † Oksoko avarsan Last Modified in 02/02/24 | 6 | 238 | 238 | 0 | 2 | 0 | 0 | 1 |
[41] † Anomalipes zhaoi Last Modified in 02/02/24 | 232 | 14 | 14 | 0 | 0 | 0 | 0 | 1 |
[42] † CM 96523 Last Modified in 02/02/24 | 223 | 23 | 23 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 1163 | |
Project overview | 49 | |
Media views | 264 | Media search (154 views); M902004 (26 views); M902006 (29 views); M902008 (29 views); M902007 (26 views); |
Taxon list | 569 | |
Bibliography | 40 | |
Specimen list | 136 | |
Views for media list | 55 | |
Matrix views | 49 | Matrix landing page (42 views); Matrix (7 views); |
Documents list | 1 |