| Icriodus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Conodonta |
| Order: | † Ozarkodinida |
| Family: | † Gnathodontidae |
| Genus: | † Icriodus Branson and Mehl 1938 |
| Species | |
| |
Icriodus is an extinct conodont genus in the family Gnathodontidae.
In 1938, Edward Branson and Maurice Mehl reviewed the conodont genus Icriodus. [5]
Conodonts are extinct agnathan chordates resembling eels, classified in the class Conodonta. For many years, they were known only from tooth-like microfossils found in isolation and now called conodont elements. Knowledge about soft tissues remains limited. The animals are also called Conodontophora to avoid ambiguity.
Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1931.
Taphrognathus is an extinct genus of conodonts from the Dinantian.
The Devonian Old Port Formation is a mapped bedrock unit in Pennsylvania, USA. Details of the type section and of stratigraphic nomenclature for this unit as used by the U.S. Geological Survey are available on-line at the National Geologic Map Database. Current nomenclature usage by U.S. Geological Survey restricts the name Old Port Formation to Pennsylvania, but correlative units are present in adjacent states.
The Late Silurian to Early Devonian Keyser Formation is a mapped limestone bedrock unit in Pennsylvania, Maryland, Virginia, and West Virginia.
The Richmond Group is a geologic group in Michigan. It preserves fossils dating back to the Ordovician period.
Bactrognathus is an extinct genus of conodonts in the family Bactrognathidae.
Maurice Goldsmith Mehl was an American paleontologist. A longtime professor in the Department of Geology at the University of Missouri, Mehl was a founding member and officer of the American Association of Petroleum Geologists. Mehl was a fellow of the Geological Society of America (1922), the Paleontological Society, and the American Association for the Advancement of Science.
Edward B. Branson was an American geologist and paleontologist. He worked at the University of Missouri.
Wurmiella is an extinct conodont genus.
Ozarkodina is an extinct genus of conodonts in the family Spathognathodontidae.
Polygnathus is an extinct genus of conodonts.
Palmatolepis is an extinct conodont genus in the family Palmatolepidae. It was the most abundant genus of conodonts of the Late Devonian, disappearing during the Devonian/Carboniferous crisis.
Ctenognathodus is an extinct conodont genus in the family Kockelellidae.
Spathognathodus is an extinct conodont genus in the family Spathognathodontidae. It is a non-Platform conodont, from the Pennsylvanian (Caboniferous).
Amorphognathus is an extinct conodont genus in the family Balognathidae from the Ordovician.
Distomodus is an extinct genus of conodonts.
Eolinguipolygnathus is an extinct genus of conodont from the Early Devonian (Emsian).
Siphonodella is an extinct genus of conodonts.
Oulodus is a genus of conodonts in the family Prioniodinidae.
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