نتایج جستجو برای: ichnofacies

تعداد نتایج: 46  

2007
ADRIAN P. HUNT SPENCER G. LUCAS

Triassic tetrapod tracks have long been studied, including classic ichnofaunas such as those of the lower Newark Supergroup of eastern North America and the Bundsandstein of central Europe. They are known from all seven continents and encompass five archetypal vertebrate ichnofacies for nonmarine environments (Chelichnus, Grallator, Batrachichnus, Brontopodus, Characichnos), all of which are pr...

2007
ADRIAN P. HUNT SPENCER G. LUCAS

Significant tetrapod footprint assemblages from the Late Triassic of western North America include the following ichnotaxa: Gwyneddichnium majore Bock, 1952, Rhynchosauroides ispp. Maidwell, 1911, Brachychirotherium parvum (Hitchcock, 1889) Brachychirotherium thuringiacum Rühle von Lilienstern, 1938, Apatopus lineatus Baird, 1957, Grallator cursorius Hitchcock, 1858, Anchisauripus sillimani Hit...

2005
ADRIAN P. HUNT SPENCER G. LUCAS

Two distinct traditions exist in the study of ancient ichnofaunas, which may be termed the ethological (invertebrate ichnology) and the biotaxonomic (tetrapod ichnology). Consequently, there are two different kinds of ichnofacies, each peculiar to one tradition, and we term them ethoichnofacies (invertebrate ichnofacies) and biotaxonichnofacies (tetrapod ichnofacies). In the Paleozoic, the Chel...

2007
ALLAN J LERNER SPENCER G. LUCAS JUSTIN A. SPIELMANN

An invertebrate ichnoassemblage from the Moenkopi Group (Spathian Ankareh Formation) at Diamond Creek in north-central Utah consists of Gordia marina Emmons, Helminthopsis hieroglyphica Wetzel and Bromley and irregular networks similar to Unisulcus. This is the first record of Gordia and Helminthopsis from the Moenkopi Group. This low diversity ichnoassemblage, consisting of simple grazing trac...

2016
Trevor J. Hurd Christopher R. Fielding

A detailed outcrop and sub-surface analysis was completed on the Peay Member sandstone (Frontier Formation) in the northeast Bighorn Basin, Wyoming, building on previous work by Clark (2010) and Hutsky (2011). Regional correlations reveal the sandstone body to be digitate in planform geometry, elongate along depositional dip, and restricted across depositional strike. It is interpreted to be th...

1999
Luis A. Buatois M. Gabriela Mángano Timothy R. Carr

Integration of ichnologic, sedimentologic, and stratigraphic studies of cores from Lower Pennsylva-nian oil and gas reservoirs (lower Morrow Sandstone, southwest Kansas) allows researchers to distinguish between estuarine-and open-marine deposits. This study represents one of the first published ichnologic analyses of a Paleozoic reservoir and, therefore, provides a unique opportunity to test t...

Journal: :geopersia 2012
amir karimian torghabeh asadollah mahboubi reza moussavi-harami moyra e.j.wilson

this study shows that ichonology can be used to refine sequence stratigraphy as well as to interpret the depositional environment of the kalat formation (upper maastrichtian) in the central kopeh- dagh basin (ne iran), dareh-gaz section. field studies and petrography of these deposits led to recognize four lithofacies and nine subfacies that formed in the tidal flat (lithofacies a), lagoon (lit...

2007
ADRIAN P. HUNT SPENCER G. LUCAS JUSTIN A. SPIELMANN ALLAN J LERNER

Coprolites are the least studied and most under-sampled vertebrate trace fossils. They are very common in some Triassic localities. We recognize six new coprolite ichnotaxa: Alococopros triassicus, A. indicus, Saurocopros bucklandi, Liassococopros hawkinsi, Malericopros matleyi and Falcatocopros oxfordensis. The distribution of coprolite ichnotaxa is: Permian Hyronocopros amphipolar and Heterop...

Journal: :geopersia 0
amir karimian torghabeh , ferdowsi university of mashhad asadollah mahboubi ferdowsi university of mashhad reza moussavi-harami ferdowsi university of mashhad moyra e.j.wilson ferdowsi university of mashhad

this study shows that ichonology can be used to refine sequence stratigraphy as well as to interpret the depositional environment of the kalat formation (upper maastrichtian) in the central kopeh- dagh basin (ne iran), dareh-gaz section. field studies and petrography of these deposits led to recognize four lithofacies and nine subfacies that formed in the tidal flat (lithofacies a), lagoon (lit...

Journal: :Geological Quarterly 2021

We provide the first reports of some rare trace fossils from middle Turonian (Upper Cretaceous) Sudety Mountains (SW Poland, Upper Nysa K?odzka Graben, D?ugopole Górne Quarry). These include burrows ? Ancorichnus isp., Asterosoma cf. ludwigae Schlirf, 2000, Phycodes Dactyloidites ottoi (Geinitz, 1849), Funalichnus strangulatus (Fritsch, 1883), palmatus Hall, 1852, , Phycosiphon incertum Fischer...

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