Unit 5: Primate Evolution and Paleoanthropological Methods
... Before we get too far into the fossil record, we first have to learn more about how this kind of research is done. First, we will delve into the sometimes dry topic of dating techniques and taphonomy. To begin our practice of fossil analysis, we will learn first about the earliest primate fossils. T ...
... Before we get too far into the fossil record, we first have to learn more about how this kind of research is done. First, we will delve into the sometimes dry topic of dating techniques and taphonomy. To begin our practice of fossil analysis, we will learn first about the earliest primate fossils. T ...
Apr - TN Overview
... types of beavers at the same locality suggests that they had very different lifestyles; otherwise they would be competing for the same resources. Alligators have been a highlight from the dig season as well. A nearly complete skeleton with skull and jaws was recovered late in the field season. Sever ...
... types of beavers at the same locality suggests that they had very different lifestyles; otherwise they would be competing for the same resources. Alligators have been a highlight from the dig season as well. A nearly complete skeleton with skull and jaws was recovered late in the field season. Sever ...
"Fossils" pdf file
... ancient fossils, dating back 3.5 billion years, were found in sedimentary rocks in North-Western Australia. These are unicellular organisms, similar to bacteria, extremely thin filaments whose shape is very similar to the present-day organisms known as cyanobacteria or blue-green algae (these are pr ...
... ancient fossils, dating back 3.5 billion years, were found in sedimentary rocks in North-Western Australia. These are unicellular organisms, similar to bacteria, extremely thin filaments whose shape is very similar to the present-day organisms known as cyanobacteria or blue-green algae (these are pr ...
lecture 14, history of life, condensed - Cal State LA
... North America used to have lions, camels, elephants, and other giant land-animals - all disappeared roughly 10,000 years ago, same time that humans first crossed the land bridge from Asia Australian used to have many species of giant marsupials - all disappeared after humans first arrived Same patte ...
... North America used to have lions, camels, elephants, and other giant land-animals - all disappeared roughly 10,000 years ago, same time that humans first crossed the land bridge from Asia Australian used to have many species of giant marsupials - all disappeared after humans first arrived Same patte ...
The Fossil Record - modes of life
... The organisms which inhabited the Earth are sometimes preserved in the rock as fossils. In addition, the presence of organisms can be recorded through marks they leave in sediment as a result of their activities such as tracks, trails, footprints, burrows, or feces (coprolites). Geologists call thes ...
... The organisms which inhabited the Earth are sometimes preserved in the rock as fossils. In addition, the presence of organisms can be recorded through marks they leave in sediment as a result of their activities such as tracks, trails, footprints, burrows, or feces (coprolites). Geologists call thes ...
Environments Through Time - NagleEarthandEnvironmental
... -The burgess shale is a great example of the incompleteness of the fossil record as soft-bodied fossils are outnumbered by hard organisms as they cannot preserve as well -65 000 marine specimens What does it suggest about ancient life? -much more diverse -some are ancestors to modern day fauna -show ...
... -The burgess shale is a great example of the incompleteness of the fossil record as soft-bodied fossils are outnumbered by hard organisms as they cannot preserve as well -65 000 marine specimens What does it suggest about ancient life? -much more diverse -some are ancestors to modern day fauna -show ...
Evidence of Common Ancestry and Diversity Chapter
... 1) Fossils are the preserved remains of prehistoric organisms. 2) Fossilization is the complex process of converting a plant or animal remains into a fossil. 3) Fossils only form under certain conditions and are rather rare. Factors such as the rate decomposition and predation effect the chances of ...
... 1) Fossils are the preserved remains of prehistoric organisms. 2) Fossilization is the complex process of converting a plant or animal remains into a fossil. 3) Fossils only form under certain conditions and are rather rare. Factors such as the rate decomposition and predation effect the chances of ...
The Universe and Its Stars / Matter and Its Interactions
... 1) Fossils are the preserved remains of prehistoric organisms. 2) Fossilization is the complex process of converting a plant or animal remains into a fossil. 3) Fossils only form under certain conditions and are rather rare. Factors such as the rate decomposition and predation effect the chances of ...
... 1) Fossils are the preserved remains of prehistoric organisms. 2) Fossilization is the complex process of converting a plant or animal remains into a fossil. 3) Fossils only form under certain conditions and are rather rare. Factors such as the rate decomposition and predation effect the chances of ...
File - Mrs. LeCompte
... The evolution of some novel characteristics opened the way to new adaptive zones allowing many taxa to diversify greatly during their early history. o Ex. Insects and wings o Ex. The Precambrian Era burst in diversity of sea animals, due to the origin of shells and skeletons (700 million years ago). ...
... The evolution of some novel characteristics opened the way to new adaptive zones allowing many taxa to diversify greatly during their early history. o Ex. Insects and wings o Ex. The Precambrian Era burst in diversity of sea animals, due to the origin of shells and skeletons (700 million years ago). ...
Prehistoric Life Guided Tour PreVisit Evolutionary Adaptations
... Some dinosaurs cared for their young while still in the nest ...
... Some dinosaurs cared for their young while still in the nest ...
1. The principle of uniformitarianism is often summarized by saying
... Preservation of deposits resulting from instantaneous events among sedimentary layers is the basis for correlation in event stratigraphy. biostratigraphy. isotope stratigraphy. lithostratigraphy. ...
... Preservation of deposits resulting from instantaneous events among sedimentary layers is the basis for correlation in event stratigraphy. biostratigraphy. isotope stratigraphy. lithostratigraphy. ...
Early history of life on earth to Cambrian Explosion
... 1. Ediacaran Fauna 580- 550 mya R.C. Sprigg-- studying old lead mines in the Ediacaran Hills of ...
... 1. Ediacaran Fauna 580- 550 mya R.C. Sprigg-- studying old lead mines in the Ediacaran Hills of ...
exam formatted for Word
... 2.) _______ What is the importance of the Wopmay orogen in Canada? a.) it is a "modern" plate tectonic event; b.) it is the oldest mountain range in the Precambrian; c.) the oldest rocks ever found came from this location; d.) they show the earliest large cratons first formed in Africa. 3.) _______ ...
... 2.) _______ What is the importance of the Wopmay orogen in Canada? a.) it is a "modern" plate tectonic event; b.) it is the oldest mountain range in the Precambrian; c.) the oldest rocks ever found came from this location; d.) they show the earliest large cratons first formed in Africa. 3.) _______ ...
Evidence of Evolution - Fall River Public Schools
... States that successive layers of rock or soil were deposited on top of one another by wind or water ...
... States that successive layers of rock or soil were deposited on top of one another by wind or water ...
08-0403 NOTES
... This approach can work on a small geographic scale, but rarely over vast distances because: Most strata are not that distinctive. Different sediment types deposited simultaneously in different areas. Most beds do not represent time planes. Late 18th and early 19th century workers in England, Europe ...
... This approach can work on a small geographic scale, but rarely over vast distances because: Most strata are not that distinctive. Different sediment types deposited simultaneously in different areas. Most beds do not represent time planes. Late 18th and early 19th century workers in England, Europe ...
10/06
... • Assume know environmental parameters controlling present-day distribution of plants and animals – (e.g. Temperature, precipitation, growing season, food resources, etc.) • Present day plant/animal distributions are in equilibrium with controlling processes and former distributions were also in equ ...
... • Assume know environmental parameters controlling present-day distribution of plants and animals – (e.g. Temperature, precipitation, growing season, food resources, etc.) • Present day plant/animal distributions are in equilibrium with controlling processes and former distributions were also in equ ...
Modern Organisms
... include conifers, ginkos and about 20 other families. 8-10 subfamilies, including water lillies, laurels, and magnolias, as well as the traditional division into – Monocotyledons (seeds with one part), including grasses (all grains), palm trees and orchids (20,000 species) – (Eu)dicotyledons (seeds ...
... include conifers, ginkos and about 20 other families. 8-10 subfamilies, including water lillies, laurels, and magnolias, as well as the traditional division into – Monocotyledons (seeds with one part), including grasses (all grains), palm trees and orchids (20,000 species) – (Eu)dicotyledons (seeds ...
between two or more different species
... Symbiosis: A ____________________ ____________________ between two or more different species. The three types are: ___________________ : Both organisms benefit ___________________ : One benefits, other is harmed ___________________ : One benefits, other is unaffected ...
... Symbiosis: A ____________________ ____________________ between two or more different species. The three types are: ___________________ : Both organisms benefit ___________________ : One benefits, other is harmed ___________________ : One benefits, other is unaffected ...
Twenty Questions
... spraying continues, but still more mosquitoes hatch that are unaffected by the insecticide. Which of the ...
... spraying continues, but still more mosquitoes hatch that are unaffected by the insecticide. Which of the ...
17-1 The Fossil Record - Mrs. Wahe`s Life Science Class
... Fossils & Ancient Life Key Concept The Fossil Record Provides Evidence About The History Of Life On Earth. It Also Shows How Different Groups of Organisms Have Changed Over Time. ...
... Fossils & Ancient Life Key Concept The Fossil Record Provides Evidence About The History Of Life On Earth. It Also Shows How Different Groups of Organisms Have Changed Over Time. ...
Biostratigraphic Correlation Environmental Interpretation
... Some fossils are much more useful for this practice than are others. It helps if the particular group of organisms, whatever they are, is evolving rapidly. Thus, more species useful for discriminating small periods of time occur more closely spaced in the rocks. It also helps if the organism has wid ...
... Some fossils are much more useful for this practice than are others. It helps if the particular group of organisms, whatever they are, is evolving rapidly. Thus, more species useful for discriminating small periods of time occur more closely spaced in the rocks. It also helps if the organism has wid ...
File
... within a population to make predictions about survival under particular environmental conditions. ...
... within a population to make predictions about survival under particular environmental conditions. ...
The fossil record, biostratigraphy and diversity of life
... organisms to be preserved, it is necessary to isolate them from oxygen almost immediately after death. This most likely occurs when organisms are rapidly buried in fine-grained sediment in anoxic water; this only happens in rare environments. 3. The activities of the geological engines – sea floor i ...
... organisms to be preserved, it is necessary to isolate them from oxygen almost immediately after death. This most likely occurs when organisms are rapidly buried in fine-grained sediment in anoxic water; this only happens in rare environments. 3. The activities of the geological engines – sea floor i ...
between two or more different species
... Symbiosis: A _close____ __relationship_____ between two or more different species. The three types are: __Mutualism___ : Both organisms benefit __Parasitism___ : One benefits, other is harmed ___Commensalism___ : One benefits, other is unaffected ...
... Symbiosis: A _close____ __relationship_____ between two or more different species. The three types are: __Mutualism___ : Both organisms benefit __Parasitism___ : One benefits, other is harmed ___Commensalism___ : One benefits, other is unaffected ...
Fossils of the Burgess Shale
The fossils of the Burgess Shale, like the Burgess Shale itself, formed around 505 million years ago in the Mid Cambrian period. They were discovered in Canada in 1886, and Charles Doolittle Walcott collected over 60,000 specimens in a series of field trips up from 1909 to 1924. After a period of neglect from the 1930s to the early 1960s, new excavations and re-examinations of Walcott's collection continue to discover new species, and statistical analysis suggests discoveries will continue for the foreseeable future. Stephen Jay Gould's book Wonderful Life describes the history of discovery up to the early 1980s, although his analysis of the implications for evolution is largely superseded.The fossil beds are in a series of shale layers, averaging 30 millimetres (1.2 in) and totalling about 160 metres (520 ft) in thickness. These layers were deposited against the face of a high undersea limestone cliff. All these features were later raised up 2,500 metres (8,000 ft) above current sea level during the creation of the Rocky Mountains.These fossils have been preserved in a distinctive style known as Burgess shale type preservation, which preserves fairly tough tissues such as cuticle as thin films, and soft tissues as solid shapes, quickly enough that decay has not destroyed them. Moderately soft tissues, such as muscles, are lost. Scientists are still unsure about the processes that created these fossils. While there is little doubt that the animals were buried under catastrophic flows of sediment, it is uncertain whether they were transported by the flows from other locations, or lived in the area where they were buried, or were a mixture of local and transported specimens. This issue is closely related to whether conditions around the burial sites were anoxic or had a moderate supply of oxygen. Anoxic conditions are generally thought the most favourable for fossilization, but imply that the animals could not have lived where they were buried.In the 1970s and early 1980s the Burgess fossils were largely regarded as evidence that the familiar phyla of animals appeared very rapidly in the Early Cambrian, in what is often called the Cambrian explosion. This view was already known to Charles Darwin, who regarded it as one of the greatest difficulties for the theory of evolution he presented in The Origin of Species in 1859. However, from the early 1980s the cladistics method of analysing ""evolutionary family trees"" has persuaded most researchers that many of the Burgess Shale's ""weird wonders"", such as Opabinia and Hallucigenia, were evolutionary ""aunts and cousins"" of present-day types of animal rather than a rapid proliferation of separate phyla, some of which were short-lived. Nevertheless, there is still debate, sometimes vigorous, about the relationships between some groups of animals.