Tropidostoma dubium

Tropidostoma dubium

Christian F. Kammerer, Roger M.H. Smith · CC BY 4.0 · via Wikidata/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
TropidostomaPBDB
Diet
herbivorePBDB, for Tropidostoma
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 264.28 Mya and 254.14 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Permian — about 12 of 12 occurrencesPermian264–264 Mya — about 0.1 occurrences264–264 Mya — about 0.1 occurrences264–263 Mya — about 0.1 occurrences263–263 Mya — about 0.1 occurrences263–263 Mya — about 0.1 occurrences263–262 Mya — about 0.1 occurrences262–262 Mya — about 0.1 occurrences262–261 Mya — about 0.1 occurrences261–261 Mya — about 0.1 occurrences261–261 Mya — about 0.1 occurrences261–260 Mya — about 0.1 occurrences260–260 Mya — about 0.1 occurrences260–260 Mya — about 0.5 occurrences260–259 Mya — about 0.7 occurrences259–259 Mya — about 0.7 occurrences259–258 Mya — about 0.7 occurrences258–258 Mya — about 0.7 occurrences258–258 Mya — about 0.7 occurrences258–257 Mya — about 0.7 occurrences257–257 Mya — about 0.7 occurrences257–257 Mya — about 0.7 occurrences257–256 Mya — about 0.7 occurrences256–256 Mya — about 0.7 occurrences256–255 Mya — about 0.7 occurrences255–255 Mya — about 0.7 occurrences255–255 Mya — about 0.7 occurrences255–254 Mya — about 0.7 occurrences254–254 Mya — about 0.4 occurrences264.8 Mya253.6 Mya

12 occurrences of Tropidostoma dubium on record, most of them in the Permian. 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

12 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

  • Teekloof Formation · Beaufort GroupWestern Cape, Northern Cape · ZA · 264.28–254.14 Mya8
Teekloof — 32.23°S, 21.61°ETeekloof — 32.15°S, 22.01°ETeekloof — 32.08°S, 22.11°E

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The named rock units Tropidostoma dubium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Tropidostoma dubium and its relatives

Permian

Where Tropidostoma dubium and its relatives were recorded in the Permian.

Found in the same rock

14 taxa

The Paleobiology Database records 2 sites for Tropidostoma dubium, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

7 references

Each of the 12 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. 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 content2

Picture of Tropidostoma dubium

Credit
Christian F. Kammerer, Roger M.H. Smith
Licence
CC BY 4.0
Commercial use
the licence allows it

Photogrammetry

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Tropidostoma dubium · NHMUK:PAL:PV R 1662

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

Keep going

What may have been alongside itTropidostoma through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Owen 1876)