Behavioral and anatomical unity of the earliest burrowing animals and the cause of the "Cambrian explosion" From: Paleobiology | Date: July 1, 2005| Author: Dzik, Jerzy | Copyright Paleontological Society Summer 2005. Provided by ProQuest LLC.Copyright information

Abstract.-All interpretable trace fossils from the Ediacarian-Cambrian transition strata of northern Siberia, Ukraine, and elsewhere represent shelters of infaunal animals feeding from the sediment surface. There is a gradation of forms ranging from (1) makers of horizontal galleries in soft sand with bilobed lower surface and proboscis extended to the surface, through (2) linear or zigzag series of short, widely U-shaped burrows in firm clay with bilobed or three-lobed lower surface, to (3) ...

Related newspaper, magazine, and journal articles from HighBeam Research

	Behavioral and anatomical unity of the earliest burrowing animals and the cause of the "Cambrian explosion" Paleobiology ; Abstract.-All interpretable trace fossils from the Ediacarian-Cambrian transition strata of northern Siberia, Ukraine, and elsewhere represent shelters of infaunal animals feeding from the sediment surface. There is a gradation of forms ranging from (1) makers of horizontal galleries in soft sand
	TRACE FOSSILS FROM NEARSHORE TO OFFSHORE ENVIRONMENTS: LOWER DEVONIAN OF BOLIVIA Journal of Paleontology ; ABSTRACT- Abundant and diverse trace fossils occur in deposits, recording an Early Devonian transgression in Bolivia. The very well-exposed Presto-El Peral section is located in the Interandean Belt 50 km northeast of Sucre. Trace fossils can be assigned to five associations from nearshore to
	Beyond Bones.(use of trace fossils in archaeology) Science News ; Trace fossils yield important clues to ancient life When detectives investigate a murder, they don't just look at the dead body. They also examine the wealth of clues nearby: tooth marks on partially eaten food in the kitchen, fingerprints that don't belong to the victim, bloody footprints from a
	Trace fossil assemblages reflecting stressed environments in the middle jurassic carmel seaway of Central Utah Journal of Paleontology ; ABSTRACT-The shallow-marine Carmel Formation (Middle Jurassic) in central Utah hosts low-diversity trace fossil assemblages, including Arenicolites, Chondrites, Gyrochorte, Lockeia, Planolites, Protovirgularia, Rosselia, Scalarituba, Skolithos, Taenidium, and Teichichnus. Non specialized ichnotaxa
	Ichnology of an Upper Carboniferous fluvio-estuarine paleovalley: The Tonganoxie Sandstone, Buildex Quarry, Eastern Kansas, USA Journal of Paleontology ; LUIS A. BUATOIS1, M. GABRIELA MANGANO,1 CHRISTOPHER G. MAPLES,1 AND WILLIAM P. LANIER2,* ABSTRACT--Tidal rhythmites of the Tonganoxie Sandstone Member (Stranger Formation, Douglas Group) at Buildex Quarry, eastern Kansas, contain a relatively diverse ichnofauna. The assemblage includes arthropod
	Neonereites uniserialis from c.600 Ma year old rocks in western Scotland and the emergence of animals Journal of the Geological Society ; M. D. BRASIER 1 & D. McILROY 2 Abstract: A chain of pellets (Neonereites uniserialis), usually attributed to a coelomate or pseudocoelomate metazoan, is described from the middle Dalradian Bonahaven Formation of western Scotland, in sandstones not far above the Port Askaig Tillite. This trail
	Lateral variability in shallow marine ichnofabrics: implications for the ichnofabric analysis method Journal of the Geological Society ; Abstract: Ichnological analysis, commonly undertaken both in the field and in core studies, is generally carried out in vertical logged successions. This work documents the results of a detailed ichnofabric study of two highly bioturbated sandstone beds separated by a mudstone, within the thick,
	The ichnogenus Curvolithus revisited Journal of Paleontology ; ABSTRAcT-The ichnogenus Curvolithus Fritsch, 1908, originally described from the Ordovician of the Prague Basin, typically comprises ribbonlike or tonguelike, flattened, endostratal traces with three rounded lobes on the upper surface. However, considerable confusion persists regarding the
	A NEW SOCIAL INSECT NEST FROM THE UPPER CRETACEOUS KAIPAROWITS FORMATION OF SOUTHERN UTAH Journal of Paleontology ; ABSTRACT- A fossilized social insect nest, Socialites tumulus new ichnogenus and ichnospecies, is described from continental strata of the Upper Cretaceous Kaiparowits Formation in southern Utah. Nine discrete nest structures are preserved along a single bedding plane, within an area of about 25
	The Paleoproterozoic megascopic Stirling biota Paleobiology ; Abstract.- The 2.0-1.8-billion-year-old Stirling Range Formation in southwestern Australia preserves the deposits of a siliciclastic shoreline formed under the influence of storms, longshore currents, and tidal currents. Sandstones contain a megascopic fossil biota represented by discoidal fossils

See all results.