In quest of Great Lakes Ice Age vertebrates by J. Alan Holman

By J. Alan Holman

"In Quest of significant Lakes Ice Age Vertebrates information the Ice Age fishes, amphibians, reptiles, birds, and mammals within the states and province surrounding the nice Lakes. Holman's paintings starts off with definitions of options and phrases for the final viewers and a common dialogue of the way the final ice age, the Pleistocene Epoch, affected our actual and organic global. mentioned are the tools and instruments hired in  Read more...

Show description

Read or Download In quest of Great Lakes Ice Age vertebrates PDF

Similar paleontology books

Biodiversity Response to Climate Change in the Middle Pleistocene: The Porcupine Cave Fauna from Colorado

This booklet chronicles the invention and research of animal fossils present in probably the most vital paleontological websites within the world-Porcupine Cave, positioned at an elevation of 9,500 toes within the Colorado Rocky Mountains. With tens of millions of pointed out specimens, this web site has develop into the most important resource of data at the fauna of North America's better elevations among nearly 1 million and 600,000 years in the past, a interval that observed the development and retreat of glaciers various occasions.

Fossil Reptiles of Great Britain

British Fossil reptile websites are of overseas significance on the grounds that they contain continues to be that fill the time gaps poorly identified somewhere else. They comprise wealthy vintage reptile beds that have been the resource of dozens of significant specimens. This quantity information all these websites that experience yielded fossil reptiles.

The Great American Biotic Interchange: A South American Perspective

South American ecosystems suffered one of many maximum biogeographical occasions, after the institution of the Panamian land bridge, known as the “Great American Biotic Interchange” (GABI). This refers back to the trade, in numerous levels, of land mammals among the Americas; this occasion begun in the course of the past due Miocene with the looks of the Holartic Procyonidae (Huayquerian Age) in South the USA and keeps this day.

Extra info for In quest of Great Lakes Ice Age vertebrates

Example text

These robust little fish eat small invertebrate animals such as insect larvae, isopods, and small snails. While feeding, the mudminnow tends to move its body either by quick darts or by paddling slowly along with its pectoral fins. Like the pike, the mudminnow feeds actively under the ice in winter. A BESTIARY OF GREAT LAKES REGION ICE AGE VERTEBRATES 33 This species presently occurs mainly in eastern Canada and in the northeastern and north-central United States. Central mudminnow remains have been found in a Late Wisconsinan deposit in westcentral Ohio.

Vertebrate bones mainly lllclude frogs, turtles, and small and large mammals. Zone 4 Zone 4 is composed of dark, organic peat or muck and is also an intensively biotic zone. It represents the successional stage of the pond where mats of aquatic vegetation formed over the surface of the feature. This zone may occur in the form of commercial-grade peat, which may be sold in the Great Lakes region or other places. Zone 4 may range from about 2 to 8 feet in thickness. Pleistocene fossils from zone 4 may include pollen and spores, plant fibers, cones, stems, twigs, nuts, seeds, branches, many fewer clams and snails than in zone 3, beetle wings, and sometimes vertebrate bones.

Finally, in pitfall caves, one finds bones of vertebrates that accidentally fell into the feature. As in the case of other vertebrate deposits, vertebrates in caves must also be immediately buried by sediments for fossilization to occur. Some caves have such slow rates of sedimentation that few, if any, vertebrate remains have been preserved as fossils. On the other hand, caves subject to periodic flooding often have large accumulations of fossil bones. How Are Caves Formed? Most caves in the Great Lakes region are formed by the solution of limestone or dolomite by groundwater.

Download PDF sample

Rated 4.33 of 5 – based on 47 votes