Temporal range: Cambrian to Earliest Jurassic (Hettangian)
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Conodont elements
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Subphylum:
Vertebrata
Class:
†Conodonta Pander, 1856
Subgroups
Cavidonti
Proconodontida
Conodonti
Protopanderodontida
Panderodontida
Prioniodinida
Ozarkodinida
Synonyms
†Conodontophorida Eichenberg, 1930[1]
†Euconodonta
Conodonts (Greek kōnos, "cone", + odont, "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which are usually found in isolation and are now called conodont elements. Knowledge about soft tissues remains limited. They existed in the world's oceans for over 300 million years, from the Cambrian to the beginning of the Jurassic. Conodont elements are widely used as index fossils, fossils used to define and identify geological periods.
^Cite error: The named reference Eichenberg 1930 was invoked but never defined (see the help page).
Conodonts (Greek kōnos, "cone", + odont, "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta...
subphylum Vertebrata, consisting of both living (cyclostomes) and extinct (conodonts, anaspids, and ostracoderms) species. Among recent animals, cyclostomes...
Conodonts are an extinct class of animals whose feeding apparatuses called teeth or elements are common microfossils found in strata dating from the Stage...
The conodont feeding apparatus is a series of phosphatic-mineralized elements, resembling a set of “teeth”, which are found lining the oral surface of...
paleontologist. In 1969, he described the conodont genus Protognathodus. In 1984, with Charles A. Sandberg, he described the conodont genus Alternognathus. In 2002...
This is a list of conodonts genera, sorted in alphabetical order. †Acanthodus †Acodus †Acuminatella †Alternognathus †Amorphognathus †Ancyrodella †Ancyrognathus...
is difficult. The Tournaisian is defined by the first appearance of the conodont Siphonodella sulcata within the evolutionary lineage from Siphonodella...
defined based on the first appearance of Misikella posthernsteini, a marine conodont. However, there is still much debate over the age of this boundary, as...
Palmatolepis triangularis conodont zone, but later studies showed that P. triangularis first appeared slightly later than the main conodont turnover in the GSSP...
isolated rocks: this technique is called biostratigraphy. For instance, the conodont Eoplacognathus pseudoplanus has a short range in the Middle Ordovician...
the period there were mass-extinction events that seriously affected conodonts and planktonic forms like graptolites. The trilobites Agnostida and Ptychopariida...
Haikouichthys. During the late Cambrian, eel-like jawless fish called the conodonts, and small mostly armoured fish known as ostracoderms, first appeared...
and Willi Ziegler had suspected foul play as they noticed that Gupta's conodont fossils were similar to those collected by George Jennings Hinde from Buffalo...
appearance of conodont species Declinognathodus noduliferus. The top of the stage (the base of the Moscovian) is at the first appearance of the conodonts Declinognathodus...
was the driest. Reconstruction of tropical sea surface temperature from conodont apatite implies an average value of 30 °C (86 °F) in the Early Devonian...
Prioniodontida, also known as the "complex conodonts", is a large clade of conodonts that includes two major evolutionary grades; the Prioniodinina and...
Gulch Limestone. It was once thought to be the first body fossil of a conodont, based on what turned out to be its gut contents; it is now thought to...
The Conodont Alteration Index (CAI) is used to estimate the maximum temperature reached by a sedimentary rock using thermal alteration of conodont fossils...
The base of the Changhsingian Stage is at the first appearance of the conodont species Clarkina wangi. The global reference profile is profile D at Meishan...
Roadian is defined as the place in the stratigraphic record where fossils of conodont species Jinogondolella nankingensis first appears. The global reference...
fossil record. During the late Cambrian, other jawless forms such as conodonts appear. Jawed vertebrates appear in the Silurian, with giant armoured...
appearance of the conodont Streptognathodus zethus. The top of the stage (the base of the Permian system) is at the first appearance of the conodont Streptognathodus...
stratigraphic record where fossils of conodont species Jinogondolella nanginkensis first appear. The Kungurian contains three conodont biozones: zone of Neostreptognathodus...
informal organisation founded in 1967 for the promotion of the study of conodont palaeontology. It publishes an annual newsletter. Although there are regular...
Series Time span formality Formal Lower boundary definition Fad of the Conodont Polygnathus costatus partitus Lower boundary GSSP Wetteldorf Richtschnitt...
defined as the place in the stratigraphic record where fossils of the conodont Streptognathodus isolatus first appear. The global reference profile for...
Stage is defined as the place in the stratigraphic record where fossils of conodont species Jinogondolella aserrata first appear. The global reference profile...
datum of specific species of conodont, an enigmatic group of jawless chordates with hard tooth-like oral elements. Conodonts are used as index fossils for...
Global Information
