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Conodonts are extinct chordates resembling eels, classified in the class Conodonta. For many years, they were known only from tooth-like microfossils now called conodont elements, found in isolation. Knowledge about soft tissues remains relatively sparse to this day. The animals are also called Conodontophora (conodont bearers) to avoid ambiguity.
The eleven known fossil imprints of conodont animals depict an eel-like creature with 15 or, more rarely, 19 elements forming a bilaterally symmetrical array in the head. This array constituted a feeding apparatus radically different from the jaws of modern animals. There are three forms of teeth, coniform cones, ramiform bars, and pectiniform platforms, which may have performed different roles.
The organisms range from a centimeter or so to the giant Promissum, 40 cm in length.[1] It is now widely agreed that conodonts had large eyes, fins with fin rays, chevron-shaped muscles and a notochord.
The entire class of Conodonts, or at least what was left of them at the time, are postulated to have been wiped out by theTriassic--Jurassic extinction event, which occurred roughly 200 million years ago.[2]
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Index fossils during triassic period?
Some index fossils during the Triassic period include ammonites, conodonts, and certain marine reptiles like nothosaurs and thalattosaurs. These fossils are used by paleontologists to help date and correlate rock layers from that time period. They provide important information about the environments and life forms of the Triassic era.
Where do pigs live if they don't live in a farm?
If a pig doesn't live in a farm then it will live on mud.
Do hens live in a pen?
No, hens do not live in a pen. Hens live in what is called a coop. Pigs are the animals that live in a pen.
Do lions live in woods?
They live in the jungles and grasslands.
you want a dog live or a cat live?
a dog live
What has the author Carl Buckner Rexroad written?
Carl Buckner Rexroad has written: 'Stratigraphy and conodont paleontology of the Brassfield (Silurian) in the Cincinnati Arch area' -- subject(s): Paleontology, Conodonts 'Conodonts from the Chester series in the type area of southwestern Illinois' -- subject(s): Paleontology, Conodonts 'Conodonts from the Keokuk, Warsaw, and Salem formations (Mississippian) of Illinois' -- subject(s): Paleontology, Conodonts 'Conodonts from the Vienna limestone member of the Branchville formation (Chesterian) in southern Indiana' -- subject(s): Conodonts, Limestone, Paleontology
What makes conodonts so famous for paleontologist?
gayness
What has the author Christopher R Barnes written?
Christopher R. Barnes has written: 'Preliminary studies of the ultrastructure of selected Ordovician conodonts' -- subject(s): Conodonts, Paleontology
What has the author Norbert Everett Cygan written?
Norbert Everett Cygan has written: 'Cambrian and Ordovician conodonts from the Big Horn Mountains, Wyoming' -- subject(s): Paleontology, Conodonts
What has the author Zailiang Ji written?
Zailiang Ji has written: 'Lower Ordovician conodonts of the St. George Group, Port au Port Peninsula, western Newfoundland, Canada' -- subject(s): Conodonts, Fossils, Paleontology
What has the author Randall C Orndorff written?
Randall C. Orndorff has written: 'Reevaluation of conodont color alteration patterns in Ordovician rocks, east-central Valley and Ridge and western Blue Ridge provinces, Tennessee' -- subject(s): Conodonts, Geology, Stratigraphic, Stratigraphic Geology 'Latest Cambrian and earliest Ordovician conodonts from the Conococheague and Stonehenge limestones of northwestern Virginia' -- subject(s): Paleontology, Conodonts
What has the author Wilbert H Hass written?
Wilbert H. Hass has written: 'Age and correlation of the Chattanooga shale and the Maury Formation' -- subject(s): Geology, Geology, Stratigraphic, Stratigraphic Geology 'Conodonts from the Chappel Limestone of Texas' -- subject(s): Paleontology, Conodonts
What has the author Anita Lo fgren written?
Anita Lo fgren has written: 'Arenigian and Llanvirnian conodonts from Ja mtland, northern Sweden'
What has the author Robert O Fay written?
Robert O. Fay has written: 'Blastoid studies' -- subject(s): Blastoidea 'Geology and mineral resources (exclusive of petroleum) of Custer County, Oklahoma' -- subject(s): Mines and mineral resources, Groundwater, Geology 'Guide to Roman Nose State Park, Blaine County, Oklahoma' 'Catalogue of conodonts' -- subject(s): Conodonts
What can scientist learn by studying layers of rock in sedimentary rock?
Fossils are essential clues for dating rocks. Very cool, tiny fossils called conodonts are essential in the petroleum exploration business; where light brown conodonts are found, conditions are right for oil and gas formation. Where they're black, the sediments have been cooked too long and won't produce oil or gas. Fossils have much to tell us about what conditions were like when rocks were being formed, so they can actually give us a window on the deep, deep past.
What has the author Jared Morrow written?
Jared Morrow has written: 'Shelf-to-basin lithofacies and conodont paleoecology across Frasnian-Famennian (F-F, mid-Late Devonian) boundary, central Great Basin (western U.S.A.)' -- subject(s): Conodonts, Facies (Geology), Paleoecology
What has the author Francis Anthony Kohout written?
Joseph James Kohut has written: 'Quantitative analysis, taxonomy, and distribution of Middle and Upper Ordovician conodonts from the Cincinnati region of Ohio, Kentucky, and Indiana' -- subject(s): Conodonts, Geology, Stratigraphic, Paleontology, Stratigraphic Geology
