Article
Geology
Alexander O. Averianov, Alexey Lopatin
Summary: Isolated sacrum fragments, manual ungual phalanges, and a third metatarsal from the Upper Cretaceous (Santonian) Yalovach Formation at the Kansai locality in Tajikistan, are similar to those elements in various dromaeosaurid theropods. They are identified as Kansaignathus sogdianus and further analysis confirms its position as the basalmost Asiatic velociraptorine. It is also the oldest known member of this clade in Asia and worldwide.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Nicholas R. Longrich, David M. Martill, Megan L. Jacobs
Summary: The Lower Cretaceous in England has yielded a diverse assemblage of dinosaurs, including ornithischians, sauropods, and theropods. A newly discovered dromaeosaurid dinosaur, Vectiraptor greeni, from the Isle of Wight shows similarities to Early Cretaceous eudromaeosaurs from North America, suggesting faunal interchange between Europe and North America. The Early Cretaceous dinosaur assemblage in England and Europe resulted from dispersal from North America, Asia, and West Gondwana.
CRETACEOUS RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Hans-Dieter Sues, Alexander Averianov, Brooks B. Britt
Summary: The Upper Cretaceous Bissekty Formation in Uzbekistan has yielded various non-avian theropod dinosaur remains, including a large dromaeosaurid and a neovenatorid carcharodontosaurian named Ulughbegsaurus uzbekistanensis. However, the classification of Ulughbegsaurus uzbekistanensis remains uncertain due to the lack of definitive diagnostic features. Furthermore, a giant dromaeosaurid and a medium-sized tyrannosauroid called Timurlengia euotica coexisted in the same formation.
GEOLOGICAL MAGAZINE
(2023)
Article
Geology
Federico A. Gianechini, Virginia L. Zurriaguz
Summary: The study reveals the presence of pneumatic foramina in the vertebrae of the Unenlagia comahuensis, a southern dromaeosaurid theropod, which differs from extant birds and many non-avian theropods. CT scans showed camellate tissue in the centra, consisting of small chambers separated by thin trabeculae. This information contributes to a better understanding of the evolution of vertebral pneumaticity in theropods.
CRETACEOUS RESEARCH
(2021)
Article
Multidisciplinary Sciences
Chinzorig Tsogtbaatar, Thomas Cullen, George Phillips, Richard Rolke, Lindsay E. Zanno
Summary: Studying the evolution and diversity of Late Cretaceous dinosaur assemblages in North America requires continuous spatiotemporal data. However, there is a spatial and temporal disparity in the dinosaur data on the continent. This study describes an assemblage of ornithomimosaurian fossils from the Santonian Eutaw Formation in Mississippi. The results suggest the presence of two different-sized taxa, including one of the largest known ornithomimosaurians worldwide. These findings provide key information on the diversity and distribution of North American ornithomimosaurs and indicate the coexistence of multiple species of ornithomimosaurs in the Late Cretaceous ecosystems of Laurasia.
Article
Anatomy & Morphology
Steven E. Jasinski, Robert M. Sullivan, Aja M. Carter, Erynn H. Johnson, Sebastian G. Dalman, Juned Zariwala, Philip J. Currie
Summary: Dineobellator notohesperus, a recently described dromaeosaurid from the late Cretaceous of the southwestern United States, exhibits unique physical attributes and pathologic features. Its presence reveals physical variation among dromaeosaurids and suggests the coexistence of multiple dromaeosaurids in its environment.
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2023)
Article
Paleontology
Lukasz Czepinski
Summary: The discovery of numerous dromaeosaurid taxa in the Gobi Desert has raised questions about niche partitioning among closely related species. This study describes a partial skull of a dromaeosaurid specimen from the Baruungoyot strata, which can be attributed to the velociraptorine Shri devi. The skull confirms its affinity with Velociraptor mongoliensis, but shows distinctive features and a convergence with North American eudromaeosaurians.
ACTA PALAEONTOLOGICA POLONICA
(2023)
Article
Paleontology
Rachel Nottrodt, Andrew Farke
Summary: The study of a previously undescribed ornithomimid fossil from southern Utah provides new insights into the distal tarsals of ornithomimosaurs, enhancing our understanding of the ankle structure in these animals.
ACTA PALAEONTOLOGICA POLONICA
(2021)
Article
Geosciences, Multidisciplinary
Madani Benyoucef, Adan Perez-Garcia, Mohamed Bendella, Francisco Ortega, Romain Vullo, Imad Bouchemla, Bruno Ferre
Summary: The upper part of the Continental Intercalaire deposits in the Gara Samani area of southern Algeria has provided researchers with a unique opportunity to uncover one of the richest continental vertebrate faunas of the Late Albian-Early Cenomanian age in northern Africa. Through detailed analysis, identification, and description, a diverse assemblage of elasmobranchs, actinopterygians, sarcopterygians, testudines, crocodyliforms, ornithocheirid pterosaurs, and non-avian dinosaurs has been documented in this region.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Biology
Natan Santos Brilhante, Taina Constancia de Franca, Fabiano Castro, Leandro Sanches da Costa, Philip J. Currie, Sergio Alex Kugland de Azevedo, Rafael Delcourt
Summary: A dromaeosaurid-like pedal ungual fossil was discovered in the Upper Cretaceous formation in southern France, showing similarities with the known Pyroraptor olympius specimen.
HISTORICAL BIOLOGY
(2022)
Article
Geology
Roy E. Smith, David M. Martill
Summary: This passage describes the discovery of a unique tooth from the Ifezouane Formation in eastern Morocco, which exhibits a series of severe paleopathologies, including enhanced inner curvature to the crown and the formation of three deep grooves. This is the first report of external dental pathologies in a spinosaurine spinosaurid tooth.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Rui Pei, Yuying Qin, Aishu Wen, Qi Zhao, Zhe Wang, Zhanmin Liu, Weilesi Guo, Po Liu, Weiming Ye, Lanyun Wang, Zhigang Yin, Ruiming Dai, Xing Xu
Summary: A new troodontid dinosaur, Papiliovenator neimengguensis gen. et sp. nov., has been discovered in Inner Mongolia, China. This specimen shows subadult characteristics and distinctive features from other troodontids, providing insights into troodontid anatomy. The discovery contributes to a better understanding of regional variation of troodontids in the Upper Cretaceous.
CRETACEOUS RESEARCH
(2022)
Article
Multidisciplinary Sciences
Andres Santos-Cubedo, Carlos de Santisteban, Begona Poza, Sergi Meseguer
Summary: A new spinosaurid genus and species, Protathlitis cinctorrensis gen. et sp. nov., is described based on fossil remains from the Arcillas de Morella Formation in Spain. This discovery reveals a previously unknown diversity of medium-to-large bodied spinosaurid dinosaurs in the Iberian Peninsula during the Early Cretaceous. It also suggests that spinosaurids appeared in Laurasia and later migrated to Africa and Asia where they diversified.
SCIENTIFIC REPORTS
(2023)
Article
Geography, Physical
P. E. Santamarina, V. D. Barreda, A. Iglesias, A. N. Varela, C. Mays
Summary: This paper assesses changes in fossil floras during the Cenomanian-Turonian interval through palynological studies in Patagonia, South America and Chatham Islands, New Zealand. The study reveals richness peaks and species displacement in both regions, but lacks correlation with marine-based events. It also proposes a new scheme for the mid-Cretaceous palynological provinces of Southern Gondwana.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Multidisciplinary Sciences
Min Wang, Thomas A. Stidham, Zhiheng Li, Xing Xu, Zhonghe Zhou
Summary: The study describes a new enantiornithine bird from the Early Cretaceous in China, revealing the components of cranial kinesis and highlighting the highly modular and mosaic evolution of avialan skulls. Early birds not only had major innovations in their locomotor system, but also evolved highly derived skulls.
NATURE COMMUNICATIONS
(2021)
Article
Anatomy & Morphology
Stephanie K. Drumheller, Eric W. Wilberg, Rudyard W. Sadleir
JOURNAL OF MORPHOLOGY
(2016)
Article
Geology
Stephanie K. Drumheller, Christopher A. Brochu
Article
Paleontology
Thomas L. Adams, Christopher R. Noto, Stephanie K. Drumheller
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2017)
Article
Ecology
Domenic C. D'Amore, Simon Clulow, J. Sean Doody, David Rhind, Colin R. McHenry
ECOLOGY AND EVOLUTION
(2018)
Article
Paleontology
Stephanie K. Drumheller, Christopher A. Brochu
ICHNOS-AN INTERNATIONAL JOURNAL FOR PLANT AND ANIMAL TRACES
(2014)
Article
Multidisciplinary Sciences
Domenic C. D'Amore, Megan Harmon, Stephanie K. Drumheller, Jason J. Testin
Article
Behavioral Sciences
Stephanie K. Drumheller, James Darlington, Kent A. Vliet
ETHOLOGY ECOLOGY & EVOLUTION
(2019)
Article
Anatomy & Morphology
Christopher R. Noto, Stephanie K. Drumheller, Thomas L. Adams, Alan H. Turner
ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
(2020)
Article
Paleontology
Thomas L. Adams
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2019)
Article
Multidisciplinary Sciences
Stephanie K. Drumheller, Julia B. McHugh, Miriam Kane, Anja Riedel, Domenic C. D'Amore
Article
Multidisciplinary Sciences
Julia B. McHugh, Stephanie K. Drumheller, Anja Riedel, Miriam Kane
Article
Multidisciplinary Sciences
Stephanie K. Drumheller, Clint A. Boyd, Becky M. S. Barnes, Mindy L. Householder
Summary: Fast burial is a common mechanism for preserving soft tissues in fossils, but not all fossils fit into this category. This study presents an Edmontosaurus mummy that demonstrates an alternative fossilization pathway for resistant soft tissues. The well-preserved skin on the specimen shows signs of carnivore activity, indicating incomplete scavenging of the carcass. This allowed for gases, fluids, and microbes associated with decomposition to escape, enabling the durable soft tissues to persist before desiccation and fossilization.