Ussuritidae

Ussuritidae are ancestral, Triassic, Phylloceratina characterized by generally smooth, discoidal, evolute shells with rounded venters and little or no ornamentation and by sutures with primitive monophyllitic saddles with a single terminal branch or leaflet.

Ussuritidae

Hectonichus · CC BY-SA 3.0 · 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
UssuritoideaPBDB
Diet
carnivorePBDB, for Phylloceratida
Life habit
nektonicPBDB, for Phylloceratida
Motility
actively mobilePBDB, for Phylloceratida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 47 million years on record.

The record covers at least 248.6 Mya to 201.4 Mya. No occurrence read is dated outside 250.8 Mya to 199.5 Mya.

Early Triassic — about 53 of 326 occurrencesEarly TriassicMiddle Triassic — about 195 of 326 occurrencesMiddle TriassicLate Triassic — about 77 of 326 occurrencesLate TriassicEarly Jurassic — about 1 of 326 occurrences252–250 Mya — about 6 occurrences250–248 Mya — about 19 occurrences248–246 Mya — about 37 occurrences246–245 Mya — about 40 occurrences245–243 Mya — about 41 occurrences243–241 Mya — about 55 occurrences241–239 Mya — about 31 occurrences239–238 Mya — about 15 occurrences238–236 Mya — about 21 occurrences236–234 Mya — about 24 occurrences234–232 Mya — about 10 occurrences232–230 Mya — about 6 occurrences230–229 Mya — about 6 occurrences229–227 Mya — about 5 occurrences227–225 Mya — about 0.2 occurrences225–223 Mya — about 0.2 occurrences223–222 Mya — about 0.2 occurrences222–220 Mya — about 0.2 occurrences220–218 Mya — about 0.2 occurrences218–216 Mya — about 0.2 occurrences216–214 Mya — about 0.2 occurrences214–213 Mya — about 0.1 occurrences213–211 Mya — about 0.1 occurrences211–209 Mya — about 0.4 occurrences209–207 Mya — about 0.4 occurrences207–206 Mya — about 0.6 occurrences206–204 Mya — about 3 occurrences204–202 Mya — about 3 occurrences202–200 Mya — about 2 occurrences200–198 Mya — about 0.4 occurrences248.6 Mya201.4 Mya252 Mya198 Mya

326 occurrences of Ussuritidae on record, most of them in the Middle 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

326 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

57 formations

Esino — 45.92°N, 9.70°EEsino — 45.98°N, 9.36°EToad — 56.49°N, 123.17°WToad — 56.74°N, 123.48°WToad — 56.87°N, 123.53°WToad — 58.65°N, 124.25°WToad — 58.70°N, 124.33°WToad — 58.55°N, 123.89°WToad — 59.37°N, 125.00°WToad — 59.27°N, 125.38°WToad — 58.54°N, 123.98°WToad — 57.24°N, 123.39°WToad — 59.38°N, 124.88°WThaynes — 42.69°N, 111.47°WThaynes — 41.55°N, 114.14°WThaynes — 39.33°N, 113.70°WThaynes — 42.23°N, 111.43°WThaynes — 42.12°N, 111.24°WThaynes — 42.11°N, 111.26°WThaynes — 42.74°N, 111.11°WHalstatt — 47.60°N, 13.88°EHalstatt — 47.67°N, 13.72°EHalstatt — 47.56°N, 13.63°EHalstatt — 46.51°N, 14.71°EHalstatt — 47.88°N, 16.09°EBuchenstein — 45.82°N, 10.47°EBuchenstein — 46.57°N, 11.67°EBuchenstein — 46.55°N, 11.62°EBulog — 43.98°N, 18.66°EBulog — 43.82°N, 18.44°EBulog — 43.86°N, 18.45°EPrida — 40.53°N, 118.13°WPrida — 40.51°N, 118.15°WHallstatt — 37.60°N, 23.07°EHosselkus — 40.85°N, 122.10°WHosselkus — 40.93°N, 122.13°WBlaa Mountain — 80.52°N, 94.63°WBlaa Mountain — 80.49°N, 94.47°WAcheshbok — 44.06°N, 40.56°EAcheshbok — 44.04°N, 40.47°EDunnatető Limestone — 48.48°N, 20.74°EWetterstein — 47.30°N, 11.37°EZhitkov — 43.30°N, 132.45°EZhitkov — 42.92°N, 132.30°ERifu — 38.35°N, 141.03°ECassian — 46.55°N, 11.93°ECassian — 46.56°N, 11.56°ECassian — 46.57°N, 11.94°EWengen — 46.65°N, 11.93°EWengen — 46.50°N, 11.76°EWengen — 46.55°N, 11.87°EKossen — 47.48°N, 10.94°EKossen — 47.53°N, 11.09°EBlind Fiord — 80.91°N, 89.25°WBlind Fiord — 80.63°N, 87.44°WMarmarotrapeza — 38.42°N, 26.00°EGermig — 28.70°N, 86.14°EGulangdi — 35.30°N, 99.56°EGulangdi — 35.47°N, 99.70°EUlakhan-Krest — 71.70°N, 127.80°EMarmolata — 46.45°N, 11.87°E

Loading coastlines…

The named rock units Ussuritidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 33 further formations hold fewer occurrences each and are not listed. 121 occurrences have no formation on record, which is common for older literature.

Ussuritidae and its relatives

Middle Triassic

Where Ussuritidae and its relatives were recorded in the Middle Triassic.

Found in the same rock

1,774 taxa

The Paleobiology Database records 291 sites for Ussuritidae, and this reads 240 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

93 references

Each of the 326 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. 81 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 Ussuritidae

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itUssuritoidea through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1900