Tetravirga

Tetravirga

via iDigBio · via iDigBio. 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
HolothuroideaPBDB
Diet
detritivorePBDB, for Holothuroidea
Life habit
shallow infaunalPBDB, for Holothuroidea
Motility
actively mobilePBDB, for Holothuroidea
Vision
blindPBDB, for Holothuroidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 122 million years on record.

The record covers at least 323.4 Mya to 201.4 Mya. No occurrence read is dated outside 358.86 Mya to 199.5 Mya.

Devonian — about 0 of 29 occurrencesCarboniferous — about 3 of 29 occurrencesCarboniferousPermian — about 2 of 29 occurrencesPermianEarly Triassic — about 0 of 29 occurrencesMiddle Triassic — about 9 of 29 occurrencesLate Triassic — about 12 of 29 occurrencesLate TriassicEarly Jurassic — about 3 of 29 occurrences362–357 Mya — about 0.1 occurrences357–351 Mya — about 0.3 occurrences351–345 Mya — about 0.3 occurrences345–340 Mya — about 0.3 occurrences340–334 Mya — about 0.3 occurrences334–329 Mya — about 0.3 occurrences329–323 Mya — about 0.3 occurrences307–301 Mya — about 0.5 occurrences301–296 Mya — about 0.5 occurrences268–263 Mya — about 0.4 occurrences263–257 Mya — about 1 occurrence257–252 Mya — about 0.5 occurrences252–246 Mya — about 0.2 occurrences246–241 Mya — about 6 occurrences241–235 Mya — about 6 occurrences235–229 Mya — about 4 occurrences229–224 Mya — about 1 occurrence224–218 Mya — about 0.7 occurrences218–213 Mya — about 0.5 occurrences213–207 Mya — about 2 occurrences207–202 Mya — about 0.7 occurrences202–196 Mya — about 3 occurrences323.4 Mya201.4 Mya362 Mya196 Mya

29 occurrences of Tetravirga on record, most of them in the Late 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

29 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

13 formations

San Cassiano — 46.53°N, 11.42°EKaradagtepe — 41.91°N, 33.72°EHallstätterkalk — 48.53°N, 20.47°ECassian — 46.51°N, 11.95°ECassian — 46.60°N, 12.26°EScheibelberg — 47.62°N, 12.58°EZhuganpo — 25.90°N, 105.42°EHallstatt — 47.56°N, 13.63°ESevery Shale — 40.03°N, 96.03°WFüred — 46.88°N, 17.60°EVäszoly — 46.88°N, 17.60°EBuchenstein — 46.88°N, 17.60°EJulfa — 38.94°N, 45.58°EBell Canyon — 31.88°N, 104.80°W

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The named rock units Tetravirga has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Tetravirga and its relatives

Late Triassic

Where Tetravirga and its relatives were recorded in the Late Triassic.

Found in the same rock

344 taxa

The Paleobiology Database records 23 sites for Tetravirga, 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

14 references

Each of the 29 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. 2 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Tetravirga

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Tetravirga 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.

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

Keep going

What may have been alongside itHolothuroidea through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Frizzell and Exline 1955