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Devils Tower is the geological feature made famous in the movie Close Encounters of the Third Kind. It is the core of a long since extinct volcano. Over the centuries the dirt and ash that made up the mountain have eroded leaving the rock plug behind.

London 6, 7, 8 October 2019

Coregonus alpenae

Extinct since 1975

 

The longjaw cisco chub once inhabited the deep water of Lakes Huron, Michigan, and Erie. It grew to be around 12 inches long and had a silvery colorization. The last known longjaw cisco was documented in 1975 in Ontario at the Georgian Bay. The extinction of this species was due to overfishing, pollution, and an invasive species. During the 1930s, the ciscos were caught in mass numbers by the deepwater cisco fishery and sold as “smoked herring.” Sea lampreys were introduced to the Great Lakes in the 1930s, and had a huge impact on the longjaws’ fish population. They attach their suction-cup like mouth to their victim and feed on their blood. The lamprey produces lamphredin, which is a biological fluid that prevents clots to form in the blood. The fish die from infection caused by the lamprey or by bleeding out. In a matter of years, the lampreys became the top predators of the region and the chubs were extinct.

 

Since the decimation of many fish species caused by the lampreys, a lot of research has been conducted to better understand the species. The Great Lakes Fishery Commission has worked to control their populations by using chemical lampricides and electric currents. A lampricide is a chemical inserted into the water systems that target the lampreys’ larvae, and kills them before adulthood is reached. This method helps control the uncontainable species and maintain a healthy population. The electrical currents are used when the lampreys are moving upstream to reproduce. While on this journey, scientist send electrical currents through the water that “guide” the lampreys into a trap. Both methods have been very successful and have provided education as to how to address invasive species. With this knowledge, we can be more helpful and hopefully have the tools to prevent extinctions like the longjaw cisco in the future.

 

The Carolina Parakeet (Conuropsis carolinensis) was the only parrot species native to the eastern United States. It was found from the Ohio Valley to the Gulf of Mexico, and lived in old forests along rivers.

If you get a chance look up the print C. c. carolinensis by John James Audubon. It is to me the best of his Birds of America. They were a lively and beautiful species and we killed them off for sport because, in the end, as a species we are dumb as dirt on many occasions.

The last wild specimen was killed in Okeechobee County, Florida, in 1904, and the last captive bird died at the Cincinnati Zoo on February 21, 1918.

  

2014/01/11 (sat) HARDCORE PUNKS なめんなよ番外編Day1 

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This fossil sand shark tooth, Carcharias, is 1 1/4 inch long, not a common size or species for us to find at our beach; the stone crab claw, at 7/8th inch is also a large one to find. The third fossil in my hand is a tooth from a snaggletooth shark, Hemipristis serra, missing most of its gum.

Marble: They were often collected, both for nostalgia and for their aesthetic colors. Children used to play different games with it, which was interesting at a point but now it has no practical value in the era of PlayStation,X-box etc . There was a craze of collecting these but now people get it as a showpiece. The trend of playing marble games being a kid might get extincted. :|

EndSppManage_PR_II-02-2011.pptx

Slide 5

Source: Fritz Geller-Grimm

 

Fossil replica of Archaeopteryx lithographica at Dinosaurland, Dorset.

 

Archaeopteryx lithographica Meyer, 1861

Archaeopterygidae

Saurischia

The extinct armored fish known as placoderms (plated skin) were considered the earliest branch of the jawed fishes. They achieved their greatest diversity during the Devonian ''Age of Fishes'' period (380 million years ago). Unlike jawed vertebrates, placoderms did not evolve from toothed ancestors and possessed razor-like, self-sharpening bony plates that functioned as teeth. Brachiopods (lampshells) and crinoids (echinoderms) dominated the ocean floor during this Mid-Devonian period.

Public Telephone!

365 days in colour: orange: Day 22

Skull of Gorgosaurus libratus at Natural History Museum, London.

 

Gorgosaurus libratus Lambe, 1914

Tyrannosauridae

Saurischia

2014/01/11 (sat) HARDCORE PUNKS なめんなよ番外編Day1 

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Extinct in the wild, but preserved at the National Zoo. This is a type of wild horse that used to be found in Mongolia.

 

More info can be found here

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Skull of aurochs at Cambridge Zoology Museum.

 

Bos primigenius (Bojanus, 1827)

Bovidae

Cetartiodactyla

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Self portrait from the weekend.

My newest fossil. Reminds me of a Goniastrea or a Prism Favia. Except this one is 350 million years old.

The black = exposed volcanic rock from erosion.

The end of the dinos at Rezzable Liberty sim.

2014/01/11 (sat) HARDCORE PUNKS なめんなよ番外編Day1 

at 新宿 ANTIKNOCK

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EXTINCT GOVERNMENT

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TOM AND BOOT BOYS

 

Riversleigh Fossil Centre is located in Mount Isa, western Queensland, Australia.

Within one year, this section of the river was dry due to development. Dominica claims to have 365 rivers.

Superdomain: Neomura

Domain: Eukaryota

(unranked): Unikonta

(unranked): Obazoa

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

(unranked): Bilateria

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Vertebrata

Infraphylum: Gnathostomata

Superclass: Osteichthyes

Clade: Sarcopterygii

Class: Dipnoi

Order: Ceratodontiformes

Family: †Ceratodontidae

Genus: †Ceratodus

Species: †C. fossanovum

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rick at an extinct volano in iceland

Superdomain: Neomura

Domain: Eukaryota

(unranked): Unikonta

(unranked): Obazoa

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

(unranked): Bilateria

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Vertebrata

Infraphylum: Gnathostomata

Superclass: Osteichthyes

Clade: Sarcopterygii

Class: Dipnoi

Order: Ceratodontiformes

Family: †Ceratodontidae

Genus: †Ceratodus

Species: †C. robustus

Depictions of extinct animals as envisaged in the mid 1800s.

animal, wildlife, fauna, mammal, cattle, wild cattle, kouprey, bos sauveli, bos, bovid, critically endangered, extinct, extinction, national animal, monument, statue, sen monorom, mondulkiri, cambodia, asia, february 2012

Superdomain: Neomura

Domain: Eukaryota

(unranked): Unikonta

(unranked): Obazoa

(unranked): Opisthokonta

(unranked) Holozoa

(unranked) Filozoa

Kingdom: Animalia

Subkingdom: Eumetazoa

(unranked): Bilateria

Superphylum: Deuterostomia

Phylum: Chordata

Subphylum: Vertebrata

Infraphylum: Gnathostomata

Superclass: Osteichthyes

Clade: Sarcopterygii

Class: Dipnoi

Order: Ceratodontiformes

Family: Neoceratodontidae

Genus: Neoceratodus

Species: N. potkooroki†

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