Tarasiiformes is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

order of

prehistoric Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of ...

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or hor ...

Taxonomy

* Order †Tarrasiiformes sensu Lund & Poplin 2002 aplistiaref name="mikko"> ** Family †Tarrasiidae Traquair 1881 emend. Woodward 1891 *** Genus †'' Apholidotos'' Lund ex Frickinger 1991 nomen novum **** Species †'' Apholidotos ossna'' Lund ex Frickinger 1991 nomen novum *** Genus †''

Paratarrasius Tarasiiformes is an extinct order of prehistoric ray-finned fish. Taxonomy * Order †Tarrasiiformes sensu Lund & Poplin 2002 aplistiaref name="mikko"> ** Family †Tarrasiidae Traquair 1881 emend. Woodward 1891 *** Genus †'' Apholidotos'' Lu ...

'' Lund & Melton 1982 **** Species †''

Paratarrasius hibbardi Tarasiiformes is an extinct order of prehistoric Actinopterygii, ray-finned fish. Taxonomy * Order †Tarrasiiformes sensu Lund & Poplin 2002 aplistia** Family †Tarrasiidae Traquair 1881 emend. Woodward 1891 *** Genus †''Apholidotos'' Lu ...

'' Lund & Melton 1982 *** Genus †''

Tarrasius Tarasiiformes is an extinct order of prehistoric ray-finned fish. Taxonomy * Order †Tarrasiiformes sensu Lund & Poplin 2002 aplistiaref name="mikko"> ** Family †Tarrasiidae Traquair 1881 emend. Woodward 1891 *** Genus †'' Apholidotos'' Lu ...

'' Traquair 1881 **** Species †'' Tarrasius problematicus'' Traquair 1881

Timeline of genera

ImageSize = width:1000px height:auto barincrement:15px PlotArea = left:10px bottom:50px top:10px right:10px Period = from:-416 till:-285 TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:10 start:-416 ScaleMinor = unit:year increment:1 start:-416 TimeAxis = orientation:hor AlignBars = justify Colors = #legends id:CAR value:claret id:ANK value:rgb(0.4,0.3,0.196) id:HER value:teal id:HAD value:green id:OMN value:blue id:black value:black id:white value:white id:paleozoic value:rgb(0.6,0.75,0.55) id:cambrian value:rgb(0.49,0.63,0.33) id:ordovician value:rgb(0,0.57,0.44) id:silurian value:rgb(0.70,0.88,0.71) id:devonian value:rgb(0.8,0.55,0.22) id:earlydevonian value:rgb(0.90,0.71,0.43) id:middledevonian value:rgb(0.96,0.81,0.51) id:latedevonian value:rgb(0.96,0.89,0.71) id:carboniferous value:rgb(0.4,0.65,0.6) id:mississippian value:rgb(0.4,0.56,0.4) id:pennsylvanian value:rgb(0.8,0.77,0.53) id:permian value:rgb(0.94,0.25,0.24) id:mesozoic value:rgb(0.38,0.77,0.79) id:triassic value:rgb(0.51,0.17,0.57) id:jurassic value:rgb(0.2,0.7,0.79) id:cretaceous value:rgb(0.5,0.78,0.31) id:cenozoic value:rgb(0.95,0.98,0.11) id:paleogene value:rgb(0.99,0.6,0.32) id:neogene value:rgb(0.999999,0.9,0.1) id:quaternary value:rgb(0.98,0.98,0.50) BarData= bar:eratop bar:space bar:periodtop bar:space bar:NAM1 bar:NAM2 bar:NAM3 bar:NAM4 bar:space bar:period bar:space bar:era PlotData= align:center textcolor:black fontsize:M mark:(line,black) width:25 shift:(7,-4) bar:periodtop from: -416 till: -411.2 color:earlydevonian text: Loch. from: -411.2 till: -407 color:earlydevonian text: Prag. from: -407 till: -397.5 color:earlydevonian text: Ems. from: -397.5 till: -391.8 color:middledevonian text: Eif. from: -391.8 till: -385.3 color:middledevonian text:

Givetian The Givetian is one of two faunal stages in the Middle Devonian Period. It lasted from million years ago to million years ago. It was preceded by the Eifelian Stage and followed by the Frasnian Stage. It is named after the town of Givet in Fra ...

from: -385.3 till: -374.5 color:latedevonian text:

Frasnian The Frasnian is one of two faunal stages in the Late Devonian Period. It lasted from million years ago to million years ago. It was preceded by the Givetian Stage and followed by the Famennian Stage. Major reef-building was under way during th ...

from: -374.5 till: -359.2 color:latedevonian text:

Famennian The Famennian is the latter of two faunal stages in the Late Devonian Epoch. The most recent estimate for its duration estimates that it lasted from around 371.1 million years ago to 359.3 million years ago. An earlier 2012 estimate, still used b ...

from: -359.2 till: -345.3 color:mississippian text:

Tournaisian The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma. It is preceded by the Famennian (the uppermost stage ...

from: -345.3 till: -328.3 color:mississippian text:

Viséan The Visean, Viséan or Visian is an age in the ICS geologic timescale or a stage in the stratigraphic column. It is the second stage of the Mississippian, the lower subsystem of the Carboniferous. The Visean lasted from to Ma. It follows the ...

from: -328.3 till: -318.1 color:mississippian text: Serpukhov. from: -318.1 till: -311.7 color:pennsylvanian text: Bashkir. from: -311.7 till: -306.5 color:pennsylvanian text: Mosc. from: -306.5 till: -303.9 color:pennsylvanian text: K. from: -303.9 till: -299 color:pennsylvanian text: Gzh. bar:eratop from: -416 till: -359.2 color:devonian text:

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

from: -359.2 till: -299 color:carboniferous text:

Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...

PlotData= align:left fontsize:M mark:(line,white) width:5 anchor:till align:left color:mississippian bar:NAM2 from:-345.3 till:-328.3 text:

color:mississippian bar:NAM3 from:-328.3 till:-325 text:

color:pennsylvanian bar:NAM4 from:-308.23 till:-306.5 text:

Palaeophichthys ''Palaeophichthys'' is an extinct genus of prehistoric bony fish that lived during the Desmoinsian stage of the Pennsylvanian epoch. See also * Prehistoric fish The evolution of fish began about 530 million years ago during the Cambri ...

PlotData= align:center textcolor:black fontsize:M mark:(line,black) width:25 bar:period from: -416 till: -411.2 color:earlydevonian text: Loch. from: -411.2 till: -407 color:earlydevonian text: Prag. from: -407 till: -397.5 color:earlydevonian text: Ems. from: -397.5 till: -391.8 color:middledevonian text: Eif. from: -391.8 till: -385.3 color:middledevonian text:

from: -385.3 till: -374.5 color:latedevonian text:

from: -374.5 till: -359.2 color:latedevonian text:

from: -359.2 till: -345.3 color:mississippian text:

from: -345.3 till: -328.3 color:mississippian text:

from: -359.2 till: -299 color:carboniferous text:

''Tarrasius'' is an extinct genus of Tarasiiformes. ''Tarrasius problematicus'' (of Mississippian origin, ~ 350 Ma) featured a fully regionalized

tetrapod Tetrapods (; ) are four-limbed vertebrate animals constituting the superclass Tetrapoda (). It includes extant and extinct amphibians, sauropsids ( reptiles, including dinosaurs and therefore birds) and synapsids (pelycosaurs, extinct theraps ...

-like spine divided into 5 distinct segments. It is not considered a

transitional fossil A transitional fossil is any fossilized remains of a life form that exhibits traits common to both an ancestral group and its derived descendant group. This is especially important where the descendant group is sharply differentiated by gross a ...

though, but an extreme example of

convergent evolution Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last com ...

Bibliography

References

External links

Bony fish in the online Sepkoski Database
{{Taxonbar, from=Q7686676 Carboniferous bony fish Prehistoric ray-finned fish orders