Results 111 to 120 of about 2,264,815 (333)
An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation
The Anatomical Record, EarlyView.Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski +2 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro +1 more
wiley +1 more source
Geologic map of Graham and Greenlee Counties, Arizona [PDF]
, 1958 "Contour interval 500 feet. Datum is mean level."Includes legend.Insets: Index map of Arizona showing location of Graham and Greenlee counties. Map showing sources of geologic data.Relief shown by contours.MARC 052: 4333 G7MARC 052: 4333 G8MARC
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The Anatomical Record, EarlyView.Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom +4 more
wiley +1 more source
Osteohistology of two phorusrhacids reveals uninterrupted growth strategy
The Anatomical Record, EarlyView.Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer +2 more
wiley +1 more source
Reconnaissance Geologic Map of the Central Boundary Waters Canoe Area Wilderness [PDF]
, 2011 This map was created by PRC students under the guidance of Mark Jirsa, Minnesota Geological Survey, over an eight day period between August 7-14, 2011. The purpose of the map was to build upon and improve previous geologic mapping (e.g., Jirsa and Miller,
Jirsa, Mark J +5 more
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Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs
The Anatomical Record, EarlyView.Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada +5 more
wiley +1 more source
Geographic Information System to generate geological data on the northeast of Cuba
Ciencia & Futuro, 2011 This investigation was carried out in order to generate a Geographic Information System (GIS) for the management of geological and geophysical data. The results included developing thematic maps; such as, maps of ophiolitic rocks, of laterite crust on ...
Liuska Fernández-Diéguez
doaj
, 2010 This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.OrDocs shipping list 2011-09Title from disc labelRelief ...
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The Anatomical Record, EarlyView.Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham +4 more
wiley +1 more source