Sunday, March 29, 2020
Notogoneus osculus Fish Fossil
Notogoneus osculus (Cope, 1885) sandfish (family Gonorhynchidae) fossil displayed at the American Museum of Natural History in New York City, USA. It was found in Wyoming, USA. The fossil appears to be from the Green River Formation and dates to the Middle Eocene Epoch (50 mya) of the Paleogene Period. Image taken July 2018.
Labels:
American Museum of Natural History,
eocene,
fish,
paleogene,
wyoming
Tuesday, March 24, 2020
Mary Anning's Grave
On a sunny and windy August day in 2016, I visited a coastal town called Lyme Regis in the county Dorset, England. This area is part of what is known as the Jurassic Coast which stretches approximately 150 km from Exmouth to Studland Bay.
An area well known for its Triassic, Jurassic, and Cretaceous Period fossils. From 1799 till her death in 1847 Lyme Regis was home to fossil hunter/palaeontologist Mary Anning. Her remains now buried in the graveyard of St. Michael the Archangel church along with that of her brother Joseph and three Anning children who died in infancy. She is known for finding Ichthyosaurs and Plesiosaurs along with flying reptiles, fish, ammonites, and other marine fossils.
I include closeup pictures from the base of the tombstone where visitors have left ammonite and belemnite fossils.
A short walk from the grave one can look out over coast line and see the cliffs that still bear fossils like the ones she used to venture out to collect.
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Portrait of Mary Anning at British Museum
Source is Wikipedia Commons
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https://www.imdb.com/title/tt7983894/
If you visit the Find A Grave web site page for Mary Anning photo section you can see an April 2019 image. The stone has cleaned and the engraved text enhanced. The contrast is amazing.
https://www.findagrave.com/memorial/34949489/mary-anning/photo
Labels:
ammonite,
dorset,
england,
grave,
jurassic coast,
lyme regis,
mary anning
Sunday, March 22, 2020
Siphonophrentis elongata Horn Coral Fossil
This fossil is a horn coral called Siphonophrentis elongata (Rafenesque & Clifford, 1820). It was found in the Jeffersonville Limestone of Jefferson County Kentucky USA. The creature lived in the Middle Devonian Period. This species of horn coral was one of the largest that ever existed. Since it is, the fossil is pretty easy to identify when it is found. They are hard to find fully intact though. The maximum length can get to 60-80 cm and its largest diameter 8-10 cm.
This fossil was first described as Turbinolia buceros var. elongata by C.S. Rafinesque and J.D. Clifford in the 1820 article, Prodrome d' une monographie des Turbinolies fossils du Kentucky (dans l' Amerique Septentrionale) found in Annales Generales des Scinces Physiques [Bruxelles] Tome V, pages 231-235. The fossil was renamed by Erwin C. Stumm in the 1949 paper Revision of the families and genera of the Devonian tetracorals in Geological Society of America Memoir 40, 92 p., 25 Pls.
Below is a digitally altered image of Rafinesque taken from the book The Life and Writings of Rafinesque by Richard Ellsworth Call, Filson Club Publications No. 19, Louisville Kentucky printed by John P. Morton and Company 1895. The image was from a painting by Jouett in the Wisconsin Historical Society collection courtesy of Honorable R. G. Thwaites, the Secretary. The portrait painter Matthew Harris Jouett (1788-1827) was born and died in Kentucky.
This fossil has a special significance in relation to the Commonwealth of Kentucky. It was first described by one of Kentucky's first scientist/naturalist Constantine Samuel Rafinesque (1783-1840). He was born and self-educated in Europe. Between 1819-1826 he taught at Transylvania University in Lexington, Kentucky. While there, he published a number of works with a local merchant John D. Clifford (1778-1820). Using the book about Rafinesque mentioned above as source, Clifford was responsible for Rafinesque teaching in Kentucky and if he had not died suddenly would have more than likely continued to co-author more works on natural science.
Their 1820 article was the first to describe some of the coral fossils from the Falls of the Ohio in which they described over 34 species. The descriptions are incomplete and without illustrations though. None of their types were located by Erwin C. Stumm in the 1964 definitive work on Louisville area corals entitled Silurian and Devonian Corals of the Falls of the Ohio published in The Geological Society of American Memoir 93 page 5. He did note that the coral fossil now known as Siphonophrentis elongata was referred by them as "petrified Buffalo horns" and was also named by the French naturalist Charles-Alexandre Lesueur as Zaphrentis gigantea.
The genus Siphonophrentis was named by Majorie O'Connell in the Revision of the Genus Zaphrentis in Annuals of New York Academy Science Volume XXIII. pp. 177-192, February 25, 1914. [LINK]
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