Gnathorhiza

Searched as Gnathorhiza triassica bereznikiensis. The Paleobiology Database treats Gnathorhiza as the accepted name.

Gnathorhiza is an extinct genus of prehistoric lobe-finned fish (lungfish) which lived from the Carboniferous period to the Early Triassic epoch. It is the only known lungfish genus to have crossed the Permo-Triassic boundary. Several species have been described, ranging in size from 5 to 50 centimeters.

Gnathorhiza

DiBgd · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
GnathorhizidaePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
lagoonal,marine,brackish,freshwaterPBDB, for Dipnoi

Time the record covers

At most 3.8 million years on record.

Every occurrence read is dated to somewhere between 250.8 Mya and 247 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Triassic — about 5 of 5 occurrencesEarly TriassicMiddle Triassic — about 0 of 5 occurrences251–251 Mya — about 0.2 occurrences251–251 Mya — about 0.2 occurrences251–250 Mya — about 0.2 occurrences250–250 Mya — about 0.2 occurrences250–250 Mya — about 0.2 occurrences250–250 Mya — about 0.2 occurrences250–250 Mya — about 0.2 occurrences250–250 Mya — about 0.2 occurrences250–249 Mya — about 0.2 occurrences249–249 Mya — about 0.2 occurrences249–249 Mya — about 0.2 occurrences249–249 Mya — about 0.2 occurrences249–249 Mya — about 0.2 occurrences249–249 Mya — about 0.2 occurrences249–248 Mya — about 0.2 occurrences248–248 Mya — about 0.2 occurrences248–248 Mya — about 0.2 occurrences248–248 Mya — about 0.2 occurrences248–248 Mya — about 0.2 occurrences248–248 Mya — about 0.2 occurrences248–247 Mya — about 0.2 occurrences247–247 Mya — about 0.2 occurrences247–247 Mya — about 0.2 occurrences247–247 Mya — about 0.2 occurrences251.3 Mya246.5 Mya

5 occurrences of Gnathorhiza on record, most of them in the Early Triassic. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

5 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Found in

1 formation

Charkabozh — 69.28°N, 49.93°E

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The named rock units Gnathorhiza has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Gnathorhiza and its relatives

Early Triassic

Where Gnathorhiza and its relatives were recorded in the Early Triassic.

Found in the same rock

161 taxa

The Paleobiology Database records 25 sites for Gnathorhiza, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

1 reference

Each of the 5 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Gnathorhiza

Credit
DiBgd
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Gnathorhiza was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itGnathorhizidae through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1883