Discover Top Posts Tagged with #joggins

exploring the carboniferous period

#original photography #original photographers on tumblr #mural #street art #joggins

Hylonomus

Гілоном (лат. Hylonomus, від др.-грец. ὑλονόμος «той, що мешкає в лісах, лісовий») – вимерлий тетрапод кам’яновугільного періоду. Це найраніша справжня рептилія (Westlothiana старша, але в неї спірна систематика, а інший тетрапод, Casineria, відомий за досить фрагментарними залишками). Єдиним видом є типовий вид Hylonomus lyelli.

Повний текст на сайті "Вимерлий світ":

https://extinctworld.in.ua/hylonomus/

// The final days of Inktober for this year:

Day 27 - Music

Day 28 - Float

// Until next year! 👋🏽

An Ancient Forest - Joggins Fossil Cliffs

On the east coast of Canada in Joggins, Nova Scotia, there is a forest that has been preserved in rock for more than 315 million years. Exposed in a 600-meter section along the Bay of Fundy these cliffs provide a spectacular record of the plants and animals that lived there so long ago.

During the Carboniferous period (approximately 300 to 360 million years ago) the Earth looked very different than it does today. The continental landmasses were grouped together as a supercontinent, Pangaea. The areas around the equator were covered by lush tropical rainforests and insects were the dominant animal life. These “Carboniferous coal age” forests are responsible for the large-scale coal deposits found in Europe and North America.

Joggins contains the most complete known fossil record of the Carboniferous, with over 200 different species of plants and animals being identified. The unique preservation of this ancient forest, with plants and animals buried in-situ, gives important environmental context to the fossils. The tropical forest at Joggins was dominated by Lycopsid (mainly 𝘚𝘪𝘨𝘪𝘭𝘭𝘢𝘳𝘪𝘢 and 𝘊𝘢𝘭𝘢𝘮𝘪𝘵𝘦𝘴) trees, which are related to modern club mosses and ferns. Only the bottom 2 - 3 m of the trees and their roots are preserved, and the largest have trunks 50 cm in diameter. Fossilized bones of early reptiles have also been discovered in the cliffs at Joggins. 𝘏𝘺𝘭𝘰𝘯𝘰𝘮𝘶𝘴 𝘓𝘺𝘦𝘭𝘭𝘪, discovered in 1869, is one of the earliest known reptiles and examples of an amniote, the first vertebrates that were able to reproduce on land.

The quality of fossils preserved at Joggins is due to an extremely quick burial. In fact, it is estimated to have taken less than a million years to deposit the entire 900 m clastic section. This quick burial was the result of rapid subsidence within the Cumberland Basin where Joggins is located. This was caused by two factors, the collision of the Gondwana and Euramerica crustal blocks and withdrawal of an underlying Mississippian age salt deposit.

Joggins has quite an interesting history. Although the area had been mined for coal since the 1600’s, the geological significance of Joggins was not recognized until the early 1800’s. The site has been visited by many great pioneering geologists including Charles Lyell, Sir William Dawson, and Sir William Logan. Lyell, who is best known for his principle of uniformitarianism, visited the site in 1842. He was amazed at the fossils and said the cliffs were the “finest exposure in the world”. In 1845 Sir William Logan, the first director of the then newly formed Geological Survey of Canada first mapped the stratrigraphy of the Joggins cliffs in detail. The observations made by these men at the Joggins site helped to shape the development of geological principles that are still upheld today. Thanks to Lyell and Dawson, the Joggins site is also mentioned in Darwin’s ‘𝘛𝘩𝘦 𝘖𝘳𝘪𝘨𝘪𝘯 𝘰𝘧 𝘵𝘩𝘦 𝘚𝘱𝘦𝘤𝘪𝘦𝘴’.

Now classified as a UNESCO world heritage site, the spectacular fossil forests in the cliffs at Joggins will be protected for generations to come.

Sources http://jogginsfossilcliffs.net/ http://bit.ly/2AkaMZP http://bit.ly/2AFNMHQ http://bit.ly/2BvKBzv http://bit.ly/2k8AJHI

Image Source Michael Rygel http://bit.ly/2k9Cjch

#Fossil #forest #joggins #geology #science #Sediment #sedimentary #tree #research #the earth story #cliff #bay of fundy

Springhill's Family Picnic (2018)

Springhill’s Family Picnic (2018)

Springhill Black River-Horton, Amherst Croft, Joggins McClure, Parrsboro Jenkins & Pugwash Morris

Summer is coming, slowly but surely. Heatwaves dominate the meteorological landscape, signalling the end of the long winter and colder temperatures, and bringing everybody back outside to enjoy the sun.

While many will spend it at a golden beach (as I did the other day), others may prefer to be more…

View On WordPress