scholarly journals SOFT-TISSUE PRESERVATION OF THE HIND GUT IN A NEW GENUS OF CLADID CRINOID FROM THE MISSISSIPPIAN (VISEAN, ASBIAN) AT ST ANDREWS, SCOTLAND

Palaeontology ◽  
2007 ◽  
Vol 50 (4) ◽  
pp. 951-959 ◽  
Author(s):  
THOMAS W. KAMMER ◽  
WILLIAM I. AUSICH
2017 ◽  
Vol 4 (5) ◽  
pp. 161086 ◽  
Author(s):  
Victoria M. Arbour ◽  
David C. Evans

The terrestrial Judith River Formation of northern Montana was deposited over an approximately 4 Myr interval during the Campanian (Late Cretaceous). Despite having been prospected and collected continuously by palaeontologists for over a century, few relatively complete dinosaur skeletons have been recovered from this unit to date. Here we describe a new genus and species of ankylosaurine dinosaur, Zuul crurivastator , from the Coal Ridge Member of the Judith River Formation, based on an exceptionally complete and well-preserved skeleton (ROM 75860). This is the first ankylosaurin skeleton known with a complete skull and tail club, and it is the most complete ankylosaurid ever found in North America. The presence of abundant soft tissue preservation across the skeleton, including in situ osteoderms, skin impressions and dark films that probably represent preserved keratin, make this exceptional skeleton an important reference for understanding the evolution of dermal and epidermal structures in this clade. Phylogenetic analysis recovers Zuul as an ankylosaurin ankylosaurid within a clade of Dyoplosaurus and Scolosaurus , with Euoplocephalus being more distantly related within Ankylosaurini. The occurrence of Z. crurivastator from the upper Judith River Formation fills a gap in the ankylosaurine stratigraphic and geographical record in North America, and further highlights that Campanian ankylosaurines were undergoing rapid evolution and stratigraphic succession of taxa as observed for Laramidian ceratopsids, hadrosaurids, pachycephalosaurids and tyrannosaurids.


2016 ◽  
Author(s):  
Ross P. Anderson ◽  
◽  
Nicholas J. Tosca ◽  
Robert R. Gaines ◽  
Derek E.G. Briggs

Author(s):  
Stephanie Panzer ◽  
Patrizia Pernter ◽  
Dario Piombino-Mascali ◽  
Rimantas Jankauskas ◽  
Stephanie Zesch ◽  
...  

Purpose Soft tissues make a skeleton into a mummy and they allow for a diagnosis beyond osteology. Following the approach of structured reporting in clinical radiology, a recently developed checklist was used to evaluate the soft tissue preservation status of the Tyrolean Iceman using computed tomography (CT). The purpose of this study was to apply the “Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies” to the Tyrolean Iceman, and to compare the Iceman’s soft tissue preservation score to the scores calculated for other mummies. Materials and Methods A whole-body (CT) (SOMATOM Definition Flash, Siemens, Forchheim, Germany) consisting of five scans, performed in January 2013 in the Department of Radiodiagnostics, Central Hospital, Bolzano, was used (slice thickness 0.6 mm; kilovolt ranging from 80 to 140). For standardized evaluation the “CT Checklist and Scoring System for the Assessment of Soft Tissue Preservation in Human Mummies” was used. Results All checkpoints under category “A. Soft Tissues of Head and Musculoskeletal System” and more than half in category “B. Organs and Organ Systems” were observed. The scoring system accounted for a total score of 153 (out of 200). The comparison of the scores between the Iceman and three mummy collections from Vilnius, Lithuania, and Palermo, Sicily, as well as one Egyptian mummy resulted in overall higher soft tissue preservation scores for the Iceman. Conclusion Application of the checklist allowed for standardized assessment and documentation of the Iceman’s soft tissue preservation status. The scoring system allowed for a quantitative comparison between the Iceman and other mummies. The Iceman showed remarkable soft tissue preservation. Key Points  Citation Format


2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Shixue Hu ◽  
Qiyue Zhang ◽  
Rodney M. Feldmann ◽  
Michael J. Benton ◽  
Carrie E. Schweitzer ◽  
...  

Palaios ◽  
2009 ◽  
Vol 24 (2) ◽  
pp. 104-117 ◽  
Author(s):  
M. E. MCNAMARA ◽  
P. J. ORR ◽  
S. L. KEARNS ◽  
L. ALCALA ◽  
P. ANADON ◽  
...  

Palaeontology ◽  
2013 ◽  
Vol 56 (4) ◽  
pp. 893-900 ◽  
Author(s):  
Bradley Deline ◽  
Karla M. Parsons-Hubbard

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