ichnofacies

[¦ik·nō¦fā‚shēz]

(geology)

A recurrent assemblage of ichnofossils that represent certain environmental conditions.

References in periodicals archive ?

One explanation for the occurrence of morphotypes characteristic of more than one ichnofacies but present in a single ichnocoenosis is that the host sediment body was subject to a change in environmental conditions while still at the surface.

Ichnocoenoses from the Carboniferous of eastern Canada and their implications for the recognition of ichnofacies in nonmarine strata

Ichnological analysis indicates that the Las Hoyas invertebrate ichnofauna (Mermia ichnofacies)displays evidence, such as dominance of superficial structures, the paucity of infaunal traces and a small size that indicate environmental stress due to lack of oxygen, (Buatois et al., 2000) consistent with an environment with short periods of oxygenated bottom waters, but permanently anoxic interstitial waters.

A holistic approach to the palaeoecology of Las Hoyas Konservat-Lagerstatte (La Huerguina Formation, Lower Cretaceous, Iberian Ranges, Spain)/ Una aproximacion holistica a la palaeoecologia del Konservat-Lagerstatte de Las Hoyas (Formacion La Huerguina, Cretacico Inferior, Cordillera Iberica, Espana)

A Nereites ichnofacies from the Ordovician-Silurian Welsh basin.

Palaeophycus bolbitermilus isp. nov. from the Lower Silurian Upsalquitch Formation of New Brunswick, Eastern Canada

The trace assemblage characterizes the Scoyenia ichnofacies redefined by Buatois and Mangano (1995).

Pistas de Notostraceos en ambientes de playa en la Cuenca de Lodeve (Francia)

The association of "S-O-T group", Spongeliomorpha, Ophiomorpha and Thalassinoides (Fursich, 1973) with Asterosoma and Rhizocorallium irregulare is well known in Jurassic shallow water environments (Farrow, 1966; Fursich, 1981; Heinberg and Birkelund, 1984; Gaillard et al., 1994), being indicative of the Cruziana ichnofacies (sensu Pemberton et al., 1992).

Formas compuestas de Asterosoma ludwigae Schlirf, 2000 en el Jurasico de la Cuenca Lusitanica (Portugal): estrategias condicionales en el comportamiento de Crustacea

This assemblage represents the Scoyenia ichnofacies, which corresponds to a shallow lacustrine environment with a tendency to near total water loss.

El permico inferior de Valdeviar (Sevilla), SW de Espana: geologia historica de la cuenca e implicaciones climaticas y paleogeograficas

Abundant vertical burrows in Skolithos ichnofacies are commonly called 'pipe-rock'.

First description of Skolithos burrows from the Cambrian--Ordovician boundary interval of the Central Anti-Atlas, Morocco/Maroko Anti-Atlase Kambriumi--Ordoviitsiumi piirikihtides esinevate Skolithos'e kaikude esmakirjeldus

The lack of stratigraphic control makes inferring trace fossil associations and establishing ichnofacies difficult, especially since most of the fossil-bearing slabs are small and consequently preserve only a few traces each.

Invertebrate trace fossils from the Pennsylvanian Rhode Island Formation of Massachusetts, USA

The materials are constituted by alternations of highly bioturbated fine sands (Skolithos ichnofacies) and bioclast-rich cemented coarse sands.

Palaeoenvironmental interpretation of a sand-dominated coastal system of the Upper Miocene of eastern Guadalquivir Basin (south Spain): fossil assemblages, ichnology and taphonomy

Marine Cretaceous and Paleogene biofacies and ichnofacies in Southern Tibet, China and their sedimentary significance.

Microfacies and depositional environments of upper cretaceous Kawagarh Formation from Chinali and Thoba sections Northeastern Hazara Basin, lesser Himalayas, Pakistan

Gordia, Helminthopsis, and Planolites are widespread and common in three ichnofacies: Cruziana, Mermia, and Nereites.

The Tatui Formation (Early Permian, Parana Basin), Brazil: Paleontology and Paleoenvironmental Considerations/La Formacion Tatui (Permico Temprano, Cuenca del Parana), Brasil: Consideraciones paleontologicas y paleoambientales

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