Podcasts about micro fossils

Ever wondered how paleontologists reconstruct past climates? What can this knowledge be used for? Dive into this discussion with Dr. Raquel Bryant, an Assistant Professor of Earth and Environmental Sciences at Wesleyan University to learn how microscopic fossils can be used in understanding how the ocean and its ecosystems respond to intervals of global warmth in the geologic past. Hosted by UF Agricultural Education and Communication graduate student Lexi Bolger, this conversation is sure to teach you something new about the importance of combining social science with the geosciences. This episode was made in partnership with UF's Department of Agricultural Education and Communication.  

Looking at sediment under a microscope is a window into past environments and climates. In a dot of sediment, you may find thousands of microfossils - tiny remains of bacteria, protists, fungi, animals, and plants. Rajani Panchang, an oceanographer and micropaleontologist, uses microfossils from oceans, of tiny marine organisms, to interpret how the climate and environment may have been when they were alive. Such work gives us ideas about the chemistry and temperature of the ocean, ocean currents and wind patterns of the past. Paleoclimate research eventually feeds into reports that give us the large picture of climate change and our means of recovery. It starts with studying sediments. Guest: Rajani Panchang, oceanographer and micropalaentologist, Savitribai Phule Pune University Host and producer: Sahana Ghosh Co-producer and cover designer: Kartik Chandramouli Audio editor: Tejas Dayanand Sagar Copy editors: Sapna Verma and Priyanka Shankar Subscribe to Everything Environment by Mongabay India on your podcast platform. Follow us on Twitter and Instagram  Subscribe to our newsletter

In this episode of Let's Talk Creation join Todd and Paul as they interview Dr. Marcus Ross, Dr. Neal Doran, and Dr. Tim Brophy about their presentations from the 2021 Origins Conference! What is the genealogical Adam and Eve hypothesis and how does it compare with the historic Christian view of Adam and Eve? What is micropaleontology and how do microfossils help us understand the fossil record? What is baraminology and what does this field reveal to us about land fowl? To find out, listen to the science podcast that's just for you!

Part 2. Diatoms are a major group of algae found in waters all around the world. As photosynthetic phytoplankton, they are hugely important ‘primary producers’, integral to nearly every aquatic food chain. They are responsible for a large proportion of the world’s oxygen production, with estimates ranging between 20 and 50%. Diatoms are unicellular plants that produce their cell walls, termed frustules, out of silica. These intricate frustules are what we find preserved in the fossil record and they can contain an absolute wealth of information. In this interview, Prof. Anson Mackay, University College London, joins to discuss his work on the diatoms from Lake Baikal, Siberia. We learn why lakes are such special ecosystems and what diatoms can tell us about the world through studies of their palaeoproductivity over thousands of years.

Diatoms are a major group of algae found in waters all around the world. As photosynthetic phytoplankton, they are hugely important ‘primary producers’, integral to nearly every aquatic food chain. They are responsible for a large proportion of the world’s oxygen production, with estimates ranging between 20 and 50%. Diatoms are unicellular plants that produce their cell walls, termed frustules, out of silica. These intricate frustules are what we find preserved in the fossil record and they can contain an absolute wealth of information. In this interview, Prof. Anson Mackay, University College London, joins to discuss his work on the diatoms from Lake Baikal, Siberia. We learn why lakes are such special ecosystems and what diatoms can tell us about the world through studies of their palaeoproductivity over thousands of years.

A conversation with astrobiologist Lara Maldanis about how to identify very ancient microfossils here on Earth and the potential for detecting them on Mars.

During a geological mapping expedition to the western Canadian Arctic in 2014, research scientist Rob Rainbird collected samples that yielded microfossils of a species of fungus that is about one billion years old. Rob joins us to share his experience in the field, as well as discuss his discovery. Geo-mapping for Energy and Minerals (GEM): https://www.nrcan.gc.ca/earth-sciences/resources/federal-programs/geomapping-energy-minerals/18215 Research Gate – Robert H. Rainbird: https://www.researchgate.net/profile/Robert_Rainbird Rob’s Canoe Trip Through Time: https://www.youtube.com/watch?v=Lfc5zmXJJwQ&list=PLubfjRTPezhhhKoZDyJSchIAaYIQNWezA&index=14&t=0s Simply Science: https://www.nrcan.gc.ca/simply-science Simply Science YouTube Channel: https://www.youtube.com/channel/UCNbgD_ZfyM6lh1KbemOKfeg?view_as=subscriber%3Fsub_confirmation%3D1 Photo courtesy of Rob Rainbird

Tiny grains of fossil pollen are helping GNS Science researchers piece together the big picture of past environments.

Tiny grains of fossil pollen are helping GNS Science researchers piece together the big picture of past environments.

In this episode, we interview Dr Leigh Anne Riedman, University of California, about life during the Neoproterozoic Era, the most recent of the Precambrian Eon. This time interval is far from straight forward; not only were there changes in oceanic and atmospheric chemistry,  but also dramatic shifts in climate and the formation and subsequent rifting of the supercontinent Rodinia. The Neoproterozoic also saw major biological innovations and ended with the appearance of the enigmatic Ediacaran Fauna. Leigh Anne studies acritarchs, relatively simple, single-celled walled microorganisms and by examining their diversity and abundance, she is able to comment on how life fared during this turbulent time.

Microfossils called Hematites have been discovered in northern province of Quebec, Canada. Laser imaging showed that the may be the oldest form of life ever found. These creatures are tiny, with a diameter half of a human hair, and up to half a millimeter in length. There is a debate between scientists on the matter. Some are saying that the rocks these microfossils were found in are 3.77 billion years old, but other say they could be as old as 4.28 billion years. That would put them on Earth a few 100 million years after the sun and Earth formed, before oxygen was present in Earth's atmosphere.

This week on Lost in Science, Beth talks to Phd candidate April Boaden about her research into the impacts of fishing on the Great Barrier Reef. Stuart looks at the impacts of LEDs and what they are, and Chris finds out that the mysterious shapes found in ancient Western Australian rock are not ancient fossils, but minerals in the rock.

Planktonic foraminifera are single celled organisms that are highly abundant in modern oceans and a hugely important part of the Earth’s carbon cycle. Each cell builds a hard calcite ‘test’ around itself in a huge variety of shapes. These tests continuously rain down on to the ocean floor leaving continuous records of how these organisms have changed over millions of years. They form the most complete fossil record we have, and are a very useful tool in everything from the oil industry to understanding how evolution works.

Planktonic foraminifera are single celled organisms that are highly abundant in modern oceans and a hugely important part of the Earth's carbon cycle. Each cell builds a hard calcite 'test' around itself in a huge variety of shapes. These tests continuously rain down on to the ocean floor leaving continuous records of how these organisms have changed over millions of years. They form the most complete fossil record we have, and are a very useful tool in everything from the oil industry to understanding how evolution works. In this episode we talk to Dr Tracy Aze from the University of Leeds about her research using planktonic forams to understand macroevolutionary change, as well as decoding their record to map major climate events and temperatures throughout geological history.

There are many types of rock on the Antrim Coast. Chalk is one of the most interesting. Discover its secrets: microfossils, flints and much more.

There are many types of rock on the Antrim Coast. Chalk is one of the most interesting. Discover its secrets: microfossils, flints and much more.

Transcript -- There are many types of rock on the Antrim Coast. Chalk is one of the most interesting. Discover its secrets: microfossils, flints and much more.

Transcript -- There are many types of rock on the Antrim Coast. Chalk is one of the most interesting. Discover its secrets: microfossils, flints and much more.

Hermonie looks at the contrast between microfossils and larger fossils and also discovers the Ichtyosaur in Yorkshire.

Transcript -- Hermonie looks at the contrast between microfossils and larger fossils and also discovers the Ichtyosaur in Yorkshire.

Hermonie looks at the contrast between microfossils and larger fossils and also discovers the Ichtyosaur in Yorkshire.

Transcript -- Hermonie looks at the contrast between microfossils and larger fossils and also discovers the Ichtyosaur in Yorkshire.

Transcript -- Is there really a link between the uplift of Tibet and climate change? Investigating when the change from building a plateau to destroying a plateau took place.

Is there really a link between the uplift of Tibet and climate change? Investigating when the change from building a plateau to destroying a plateau took place.

Transcript -- Is there really a link between the uplift of Tibet and climate change? Investigating when the change from building a plateau to destroying a plateau took place.

Is there really a link between the uplift of Tibet and climate change? Investigating when the change from building a plateau to destroying a plateau took place.