DINOSAUR ICHNOLOGY AND PALEOENVIRONMENTS FROM THE CHIGNIK FORMATION (ANIAKCHAK NATIONAL MONUMENT, LATE CRETACEOUS, SOUTHWESTERN ALASKA)

2018 ◽  
Author(s):  
Anthony R. Fiorillo ◽  
◽  
Yoshitsugu Kobayashi ◽  
Paul J. McCarthy ◽  
Tomonori Tanaka ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
National Monument ◽  
Southwestern Alaska

Late Cretaceous through Cenozoic Strike‐Slip Tectonics of Southwestern Alaska

2002 ◽  
Vol 110 (3) ◽  
pp. 247-270 ◽  
Author(s):  
Marti L. Miller ◽  
Dwight C. Bradley ◽  
Thomas K. Bundtzen ◽  
William McClelland
Keyword(s):  
Late Cretaceous ◽  
Strike Slip ◽  
Southwestern Alaska

scholarly journals A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11544
Author(s):  
Stephen F. Poropat ◽  
Matt A. White ◽  
Tim Ziegler ◽  
Adele H. Pentland ◽  
Samantha L. Rigby ◽  
...  
Keyword(s):  
Natural History ◽  
Late Cretaceous ◽  
Fossil Record ◽  
Upper Cretaceous ◽  
National Monument ◽  
Eastern Australia ◽  
Sauropod Tracks ◽  
Dinosaur Tracks ◽  
Conservation Park ◽  
Body Fossil

The Upper Cretaceous ‘upper’ Winton Formation of Queensland, Australia is world famous for hosting Dinosaur Stampede National Monument at Lark Quarry Conservation Park, a somewhat controversial tracksite that preserves thousands of tridactyl dinosaur tracks attributed to ornithopods and theropods. Herein, we describe the Snake Creek Tracksite, a new vertebrate ichnoassemblage from the ‘upper’ Winton Formation, originally situated on Karoola Station but now relocated to the Australian Age of Dinosaurs Museum of Natural History. This site preserves the first sauropod tracks reported from eastern Australia, a small number of theropod and ornithopod tracks, the first fossilised crocodyliform and ?turtle tracks reported from Australia, and possible lungfish and actinopterygian feeding traces. The sauropod trackways are wide-gauge, with manus tracks bearing an ungual impression on digit I, and anteriorly tapered pes tracks with straight or concave forward posterior margins. These tracks support the hypothesis that at least one sauropod taxon from the ‘upper’ Winton Formation retained a pollex claw (previously hypothesised for Diamantinasaurus matildae based on body fossils). Many of the crocodyliform trackways indicate underwater walking. The Snake Creek Tracksite reconciles the sauropod-, crocodyliform-, turtle-, and lungfish-dominated body fossil record of the ‘upper’ Winton Formation with its heretofore ornithopod- and theropod-dominated ichnofossil record.

scholarly journals Dinosaur ichnology and sedimentology of the Chignik Formation (Upper Cretaceous), Aniakchak National Monument, southwestern Alaska; Further insights on habitat preferences of high-latitude hadrosaurs

PLoS ONE ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. e0223471 ◽  
Author(s):  
Anthony R. Fiorillo ◽  
Yoshitsugu Kobayashi ◽  
Paul J. McCarthy ◽  
Tomonori Tanaka ◽  
Ronald S. Tykoski ◽  
...  
Keyword(s):  
High Latitude ◽  
Upper Cretaceous ◽  
Habitat Preferences ◽  
National Monument ◽  
Southwestern Alaska

A preserved Late Cretaceous biological soil crust in the capping sandstone member, Wahweap Formation, Grand Staircase-Escalante National Monument, Utah: Paleoclimatic implications

2010 ◽  
Vol 230 (3-4) ◽  
pp. 139-145 ◽  
Author(s):  
W.S. Simpson ◽  
E.L. Simpson ◽  
M.C. Wizevich ◽  
H.F. Malenda ◽  
H.L. Hilbert-Wolf ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Biological Soil Crust ◽  
Soil Crust ◽  
National Monument

scholarly journals The Knife Creek Glaciers of Katmai National Monument, Alaska

1957 ◽  
Vol 3 (22) ◽  
pp. 116-122 ◽  
Author(s):  
Ernest H. Muller ◽  
Henry W. Coulter
Keyword(s):  
Field Data ◽  
Static Condition ◽  
Climatic Conditions ◽  
National Monument ◽  
Snow Line ◽  
Southwestern Alaska

AbstractA group of previously unmapped glaciers on the slopes of Trident and Katmai Volcanoes, southwestern Alaska, was studied for information on the abnormal regimen produced by effects of the 1912 eruption of Mount Katmai. During the eruption an area of 5 square miles (13 km.2) of the summit above regional snow line was destroyed, and the beheaded glaciers were buried under a blanket of pumice and ash. Field data are presented to indicate that the terminus of Fourth Glacier has been essentially stationary since the 1912 eruption. Upper portions of the glacier have thinned, exposing the rim of the caldera which 40 years ago was partly ringed with fringing ice cliffs. Permafrost has developed to within a few feet of the surface of the pumice mantle. Under prevailing climatic conditions Fourth Glacier may be preserved in its present static condition for an indefinite period.

Sign in / Sign up

Export Citation Format

Share Document