Ppt phylogeny powerpoint presentation free to download. If you were to add a trout to the phylogeny shown above, where would its lineage attach to. Paige greenwood my family tree a phylogenetic tree vs. Ppt phylogeny and the tree of life powerpoint presentation. Taxonomy and phylogeny of animals by paige greenwood on prezi. Revised june 20, 1983 horses family equidae have one of the longest and richest fossil records of any group of mammals, and it documents major changes in morphology. A free powerpoint ppt presentation displayed as a flash slide show on id. How to read phylogenetic trees and determine which species are most related.
Displaying powerpoint presentation on chapter 26 powerpoint phylogeny and the tree of life available to view or download. The evolution of the horse equine studies institute. A modern horse is about 150 cm tall at the shoulders ppt. In plants, the term cultivar or variety is often used instead. Paleozoologists have been able to piece together a more complete outline of the evolutionary lineage of the modern horse than of any other animal. The rich fossil record of horses has made them a classic example of evolutionary processes. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Hyracotherium miohippus merychippus equus hind feet left, front feet right. Its tempting to focus on the order of the branch tips on a tree i. How horse evolve from eohippus to modern eques cabbalus. If you use this site, as i am managing it alone since years. The root of the tree represents the ancestral lineage, and the tips of the branches represent the descendents of that ancestor. The evolution of the horse family, as illustratd in the yale collecions.
A modern horse is about 150 cm tall at the shoulders and has only one toe. Get free outlook email and calendar, plus office online apps like word, excel and powerpoint. Phylogeny of the horsefrom tapirlike hyracotheres or. Marshs 1874 scheme was missing the first member of the horse family, now wellknown as eohippus. But in reality, this series is the best argument that can be presented against evolution from the fossil record. The powerpoint slides are designed to introduce the equidae horse. Phylogeny introduction phylogenetics is the study of evolutionary relationships among organisms or genes.
Mesohippus is intermediate between the eohippuslike horses of the eocene, which dont look much like our familiar horse and more modern horses. Creately diagrams can be exported and added to word, ppt powerpoint, excel, visio or any other document. Such exhibits focussed attention on the horse family specifically as a model of gradual, straightline evolution. Phylogenetic analysis irit orr subjects of this lecture 1 introducing some of the terminology of phylogenetics. A species is a reproductive community of populations reproductively isolated from others that occupies a specific niche in nature. The history of the horse family, equidae, began during the eocene epoch, which lasted from about 56 million to 33. Ppt molecular phylogeny powerpoint presentation free. Ontogeny and phylogeny in horse skull evolution leonard radinsky anatomy department, university of chicago, chicago, illinois 60637 received february 3, 1983. If youre seeing this message, it means were having trouble loading external resources on our website.
This video illustrates the biological species concept a species is a group of organisms that interbreed and produce fertile offspring and well as obliquely referring to the morphological species concept species are groups of organisms that share similar. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Dna sequence analysis dictates new interpretation of phylogenic trees. The response earned 2 points for stating that the penguin is. This article addresses some of the current problems. The type of the original omnivorous teeth with short, bumpy. Huxley popularized was a striking example of evolution taking place in a single lineage. Ppt phylogeny and systematics powerpoint presentation. Download chapter 26 powerpoint phylogeny and the tree of life ppt for free.
The horse evolved over a 60 million years into an animal that man kind has relied on to help spread onto every corner of the planet. Winner of the standing ovation award for best powerpoint templates from presentations magazine. A seal is more closely related to a whale than to a horse c a seal is equally related to a horse and a whale d a seal is related to a whale, but is not related to a horse. Taxa that were once thought to represent successive grades of complexity at the base of the metazoan tree are being displaced to much higher positions inside the tree. Chapter 26 powerpoint phylogeny and the tree of life. Phylogeny of the horsefrom tapirlike hyracotheres or from. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. Molecular evidence dna, rna, protein comparison systematics. This leaves no evolutionary intermediates and forces us to rethink the genesis of bilaterian complexity. Phylogeny, the history of the evolution of a species or group, especially in reference to lines of descent and relationships among broad groups of organisms. Evolution of horse from eocene to pleistocene period.
Data for phylogeny can be classified into two categories. When i did this i was only expecting it to be short but it was long. The student knows evolutionary theory is a scientific explanation for the unity and diversity of life. Lice are obligate parasites, living externally on warmblooded hosts which include every species of bird and mammal, except for monotremes, pangolins, and bats. Chapter 26 phylogeny and the tree of life a free powerpoint ppt presentation displayed as a flash slide show on id.
Microsoft powerpoint horseevolution compatibility mode. Evolution of horse dates back to eocene epoch, about 60 million years ago. Evolution, systematics, and phylogeography of pleistocene. What was still needed was an animal that was less horselike, more dawnmammalian, and ideally from the early eocene. See more ideas about horses, prehistoric and extinct animals. For some reasons horses became extinct in north america by the end of pleistocene epoch but their offshoots in europe and asia flourished.
Pdf animal phylogeny and its evolutionary implications. Horse history horse history can be traced back to a prehistoric animal known as the candylarth which was about the size of a mediumsized dog and they had five toes on each foot and thickened nails. If you use this site, as i am managing it alone since years, could you please add me in the. During the early eocene there appeared the first ancestral horse, a hoofed, browsing mammal designated correctly as hyracotherium but more commonly called. The extinct quagga 1883, related to todays 1870 plains zebras. Edgecombe,3 and andreas hejnol4 1department of ecology and evolutionary biology, brown university, providence, rhode island 02912. Throughout the phylogenetic development, the teeth of the horse underwent significant changes. Phylogenetic tree editable flowchart template on creately. Taxonomy equus first described by carl linnaeus in 1758 is the only recognized extant genus in the family equidae equus hippotigris encompasses several subspecies of equidae commonly known as asses characterized by long ears lean, straightbacked build lack of a true withers. Science fair project on the biological organisation of modern.
This form, whose remains come from lower eocene beds of new mexico and wyoming, had been named and described in 1873 by marshs bitter rival. Understanding a phylogeny is a lot like reading a family tree. Horse donkey chicken penguin snake horse 0 1 11 21 donkey 0 10 12 20 chicken 0 3 18 penguin 0 17 snake 0 phylogeny is the evolutionary history of a species. Prehistoric horse the horse as we know it today is descendant from a small primitive, four toed animal. Chapter 23 objectives evolution of populations chapter 23 powerpoint. Phylogeny definition is the evolutionary history of a kind of organism. A species is identified here according to reproductive properties of populations, groups of related organisms inhabiting a particular geographic area not according to organismal morphology biological species concept typological species concept.
The evolutionary lineage of the horse is among the bestdocumented in all paleontology. Taxonomy is the science of classification of organisms. Use pdf export for high quality prints and svg export for large sharp images or embed your diagrams anywhere with the creately viewer. Breed is another term for subspecies, usually applied to animals.
The evolution of the horse, a mammal of the family equidae, occurred over a geologic time scale of 50 million years, transforming the small, dogsized, forestdwelling eohippus into the modern horse. You can edit this template and create your own diagram. The sequence of horse fossils that marsh described and that t. We now know of many other branches of horse evolution. So how do you tell which organisms on a tree are most closely related to one another. Chapter 22 objectives decent with modification chapter 22 powerpoint. Phylogeny and the tree of life chapter 26 bcor 012 february 4,7, 2011 in a phylogenetic classification, only monophyletic groups are named. However, while the overall picture of equid evolution is well known, the details are surprisingly poorly understood, especially for the later pliocene and pleistocene, c. Lopez chapter molecular basis of inheritance dna molecular basis of inheritance dna. The history and evolution of the horse authorstream. Ppt the evolution of the horse powerpoint presentation. If a paraphyletic group bears a name, it will be an informal one e. Horsezebra hybrid shows that genes are discrete and not blended by genetic recombination.
The evolution of the horse mats molen the horse series has long been a showcase of evolution. What is evolution and what is the evidence that supports it as a theory. The science of taxonomy and where humans fit into the tree of life. The evolution of the horse article pdf available in journal of reproduction and fertility. Speciation events create branches junctions indicate a common ancestor attempts to explain. The response describes the phylogeny by highlighting the closeness of the donkeyhorse and penguinchicken relationships and indicating that the snake is quite different from the other four species, thus earning 1 point. Darwins idea that species change or evolve through time, he. Horse zebra hybrid shows that genes are discrete and not blended by genetic recombination. The horse series has long been a showcase of evolution. Below, we will refer to the objects whose phylogeny we are studying as organisms or species, but the discussion of methods is valid for the phylogeny of genes as well. Molecular phylogeny lab exercise use bioinformatics tool called geneious to compare evolutionary relationships between organisms 1 examine amino acid sequence in human coxiii 2 compare norway rat sequence to human and determine how similar they are 3 compare human and rat sequences with those of other animals and plants, and construct.
Edgecombe,3 and andreas hejnol4 1department of ecology and evolutionary biology, brown university, providence. As you move from the root to the tips, you are moving forward in time. During the early eocene there appeared the first ancestral horse, a hoofed, browsing mammal designated correctly as. Some years later, the american museum of natural history assembled a famous exhibit of fossil horses, designed to show gradual evolution from eohippus now called hyracotherium to modern equus. Some years later, the american museum of natural history assembled a famous exhibit of these fossil horses, designed to show gradual evolution from eohippus now called hyracotherium to. Phylogeny definition of phylogeny by merriamwebster. During the early eocene there appeared the first ancestral horse, a hoofed, browsing mammal designated correctly as hyracotherium but. The oddtoed ungulates horses belong to the perissodactyla, the oddtoed ungulates this group includes horses, rhinos and tapirs today equus the genus equus includes horses, zebra and asses the last remaining branch of a diverse group of equids similar to the status of homo sapiens, the last remaining species of a once diverse group of hominids.
Victoria baker intro first, horse evolution didnt proceed in a straight line. Primary center of evolution were great plains of north america, from where species migrated to europe and asia from time to time. Habitat change evasion of predators change in diet browsers to grazers expansion of range franzen, j. Science fair project on introduction to origin of horses.
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