Blackford Hill is formed from Lower Devonian volcanic rocks, lying between Upper Devonian sandstone, the northernmost extent of those found in the Pentland Hills to the South.
The mountains in the park are capped by the Mississippian Burgoon Sandstone, which is underlain by the transitional Devonian-Mississippian Rockwell Formation, consisting of crossbedded argillacious sandstone with some shale beds.
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The bedrock in the valleys of the park consists of the Upper Devonian Catskill Formation, consisting of sequences of sandstone, siltstone, and shale.
The family lived from the Lower Ordovician to the Devonian and have shells in which the apertural margins tend to flare.
These beds directly overlie the sandstones of the Brownstones Formation, also of Devonian age, which form the bulk of the hill.
This formation is an outcropping of Devonian limestone created from a larger reef when most of Oregon was covered by water.
He next investigated the Devonian rocks and fossils of the Bas-Boulonnais; and in 1839 accompanied Sedgwick and Murchison in a study of the older Palaeozoic rocks of the Rhenish provinces and Belgium, the palaeontological results being communicated to the Geological Society of London in conjunction with the Vicomte d'Archiac.
Most of Mountjoy’s research has concentrated on Jasper Park's Miette area, and in particular on its exposed coral reefs from the Devonian period (395 million to 345 million years ago).
Large-scale Devonian extension, for example, followed immediately after the end of the Caledonian orogeny particularly in East Greenland and western Norway.
Iniopterygiformes ("Nape Wing Forms") is an extinct order of chimaera-like cartilaginous fish that lived from the Devonian to Carboniferous periods (345–280 million years ago).
Kettle Point is the site of a rare outcrop of an Upper Devonian shale called the Kettle Point Formation.
Below this is the late Devonian and early Mississippian Huntley Mountain Formation, which is made of relatively soft grayish-red shale and olive-gray sandstone.
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Five major rock formations from the Devonian and Carboniferous periods are present in Little Pine State Park and Cummings Township.
The hill has not eroded as fast as the surrounding limestone as it is made of Old Red Sandstone deposited in the Devonian period approximately 400 million years ago.
Most of the oil produced in northwestern Pennsylvania was formed in sandstone reservoir rocks at the boundary between the Mississippian and Devonian rock layers.
Rhacophytales are an extinct group of plants from the Devonian period.
He is a specialist in fish paleontology, especially in the Late Devonian, and in the development of the first limbed vertebrates.
The Tobeatic Wilderness Area is made up of several geological units including: the Goldenville Formation, the Halifax Formation, and Middle to Late Devonian biotite monzogranite and leucomonzogranite.
This genus is primarily found in rocks formed during the Devonian to Triassic periods (416 million to 200 million years ago) from the central areas of North America.
Gogonasus, Gogonasus andrewsae, a Devonian fish and link to early tetrapods
Turbinopsis, from the Lower Devonian of North America, was removed from the Palaeotrochidae (Palaeotrochacea); has a spiral chord not found on typical Anomphalidae and an aperture with a thicker, wider lip, also atypical.
Holmes was a pioneer of geochronology, and performed the first accurate uranium-lead radiometric dating (specifically designed to measure the age of a rock) while an undergraduate in London, assigning an age of 370 Ma to a Devonian rock from Norway, improving on the work of Boltwood who published nothing more on the subject.
Oil is produced from the Swan Hills Formation in the Swan Hills area of northern Alberta since 1957, which is a similar Devonian reef structure as the Leduc Formation and the Rainbow Member in Alberta.
The range is composed of a diverse group of mostly igneous rocks dating from the Devonian to Early Triassic Periods.
It is perhaps the most significant of all of the calcretes which occur within the uppermost Silurian and lower Devonian sequence of rocks which constitute the Old Red Sandstone of the Anglo-Welsh Basin.
Brachydeiridae is a family of small to moderately large-sized arthrodire placoderms from the Late Devonian of Europe, restricted primarily to the Kellwasserkalk Fauna of Bad Wildungen and Adorf.
Brachydeirus is a genus of small to moderately large-sized arthrodire placoderms from the Late Devonian of Europe, restricted to the Kellwasserkalk Fauna of Bad Wildungen and Adorf.
The underlying rock from Bedruthan Steps to Trevose Head is Middle Devonian slates (386–377 Ma) with Staddon Grits to the south towards Trenance Point.
Well preserved chasmataspids were recovered from the early Devonian of October Revolution Island, part of the Severnaya Zemlya group in the Russian Arctic.
This is the type species, and is an important index fossil in the continental Devonian sequence of northern Scotland deposited in the Orcadian Basin.
In conjunction with an enhanced MOU signed between the Aga Khan University and the University of Alberta in 2009, the University of Alberta has requested His Highness the Aga Khan to develop an Islamic Garden within the grounds of the Devonian Botanic Garden.
It appeared along with other Devonian fish in the 2008 Hayao Miyazaki film Ponyo.
The only other fully described valid species is Drepanopterus abonensis, from the Upper Devonian of Portishead, Somerset.
amblyodoratus is known from some fragmentary remains from Late Devonian strata of Kettle Point, Canada.
The stratigraphic breakdown of the Devonian sequence has traditionally been into Lower, Middle and Upper ORS due to a general lack of biostratigraphic control.
The SSSI is predominantly situated on Devonian sandstones and shales, with the area around St Agnes formed from Grampound grit.
Heintzichthys gouldii, an extinct placoderm fish species that lived what is now Europe and North America during the Late Devonian
The Klerf Formation is an Early Devonian (Emsian) formation that includes a Lagerstätte in the Northern Eifel hills, at Willwerath near Prüm, Rhineland-Palatinate, Germany.
He also studied Devonian fishes from New Brunswick and Paleozoic corals, collected Tertiary insects and plants in British Columbia but it is for his work on vertebrates from western Canada, especially dinosaurs, that he is most famous.
She completed her undergraduate studies at Moscow University and completed her PhD thesis entitled 'The braincase of Youngolepis, a Lower Devonian crossopterygian from Yunnan, south-western China' at Stockholm University.
Peronidella is an extinct genus of Calcareous sponges found in marine sedimentary rocks dated between the Devonian and the Cretaceous periods.
Taxonomists traditionally considered the Rhipidistia a subgroup of Crossopterygii that described a group of fish that lived during the Devonian consisting of the Porolepiformes and Osteolepiformes.
The geology of the river consists of three different rock types at the top of the river there is the Devonian Quartzite(Metamorphic), in the middle of the river there is the Permo-Triassic Marl(Sedimentary) and the lower part of the river consists of Jurassic Limestone(Sedimentary).
Rudwick, Martin J. S. The Great Devonian Controversy: The Shaping of Scientific Knowledge among Gentlemanly Specialists.
Givetian, also known as Tioughniogan or Tioughnioga stage, the middle stage of the Middle Devonian period
It is from the Devonian time period and is very small compared to other genera in the Phacopida family.