Results 151 to 160 of about 19,231,090 (300)
United States Geological Survey Report TEI-690
, 1957 The following report is a statement of the Geological Survey's progress on the investigation of the fundamental geology, mineralogy, and geochemistry of uranium and other radioactive materials with the intention of discovering and delimiting areas ...
Geological Survey (U.S.)
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The Anatomical Record, EarlyView.Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva +2 more
wiley +1 more source
The Arizona Geological Survey, as part of the reinvigoration of its mineral resources program, has reestablished the Arizona Geological Survey Drill Core Repository. The repository in its present form contains core from 367 boreholes from across Arizona,
Carey, Nathan J., Richardson, Carson A.
core +4 more sources
The Anatomical Record, EarlyView.Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe +3 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman +9 more
wiley +1 more source
Geological Survey of Victoria. No. 9 [cartographic material]
Caption title.; Quarter sheet 9SW is a geological map of mountains encroaching on flat lands between the parish of Holcombe and the parish of Burke with cadastral details. Kangaroo Hill and Snowdon Hill can be seen to the right of bottom centre. Includes
Geological Survey of Victoria.
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The Anatomical Record, EarlyView.Abstract Amphisbaenians (Squamata: Amphisbaenidae) are fossorial reptiles with highly specialized cranial morphology, yet their fossil record is frequently limited by fragmentary preservation. This study provides a detailed osteological redescription of the skulls of Amphisbaena braestrupi and Amphisbaena laurenti from the Pleistocene of Lagoa Santa ...
Carolina L. Paiva +2 more
wiley +1 more source
Geological Survey of Victoria. No. 4 [cartographic material]
Quarter sheet 4SW is a geological map centred on the town of Kilmore, Vic. with some cadastral details. Parishes on the map include Glenburnie, Forbes and Bylands in the counties of Bourke and Dalhousie. Includes five geological notes in top left margin.
Geological Survey of Victoria.
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Assessment of intraspecific skull variation in the Campanian baenid turtle Plesiobaena antiqua
The Anatomical Record, EarlyView.Abstract Baenids are freshwater paracryptodiran turtles with a fossil record ranging from the Early Cretaceous to the Eocene. The baenid Plesiobaena antiqua is the most common turtle in the Campanian (Late Cretaceous) Dinosaur Park Formation in Canada, but the apparent intraspecific variation remains poorly understood.
Scott Bellotti +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro +10 more
wiley +1 more source