Tropidoceras

Tropidoceras

via iDigBio · CC BY-NC-ND · 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
TropidoceratinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 27 million years on record.

Every occurrence read is dated to somewhere between 201.4 Mya and 174.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Triassic — about 0 of 338 occurrencesEarly Jurassic — about 338 of 338 occurrencesEarly JurassicMiddle Jurassic — about 0 of 338 occurrences202–201 Mya — about 0.1 occurrences201–200 Mya — about 0.2 occurrences200–199 Mya — about 0.6 occurrences199–198 Mya — about 1 occurrence198–197 Mya — about 1 occurrence197–196 Mya — about 1 occurrence196–195 Mya — about 1 occurrence195–195 Mya — about 1 occurrence195–194 Mya — about 1 occurrence194–193 Mya — about 8 occurrences193–192 Mya — about 29 occurrences192–191 Mya — about 29 occurrences191–190 Mya — about 29 occurrences190–189 Mya — about 33 occurrences189–188 Mya — about 46 occurrences188–187 Mya — about 46 occurrences187–186 Mya — about 46 occurrences186–185 Mya — about 29 occurrences185–184 Mya — about 29 occurrences184–183 Mya — about 5 occurrences183–182 Mya — about 0.2 occurrences182–182 Mya — about 0.2 occurrences182–181 Mya — about 0.2 occurrences181–180 Mya — about 0.2 occurrences180–179 Mya — about 0.2 occurrences179–178 Mya — about 0.2 occurrences178–177 Mya — about 0.2 occurrences177–176 Mya — about 0.2 occurrences176–175 Mya — about 0.2 occurrences175–174 Mya — about 0.1 occurrences201.9 Mya174.2 Mya

338 occurrences of Tropidoceras on record, most of them in the Early Jurassic. 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

338 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

22 formations

Ghost Creek — 52.76°N, 131.55°WGhost Creek — 53.05°N, 131.93°WGhost Creek — 53.18°N, 132.02°WGhost Creek — 53.41°N, 132.30°WGhost Creek — 53.20°N, 132.05°WFannin — 53.05°N, 131.93°WFannin — 53.38°N, 132.27°WFannin — 53.20°N, 132.05°WBelemnite Marls — 50.72°N, 2.85°WBelemnite Marls — 50.73°N, 2.87°WOust — 36.52°N, 10.06°EOust — 36.37°N, 10.09°EOust — 36.35°N, 10.07°EOust — 36.24°N, 9.99°EOust — 36.17°N, 9.92°EInklin — 59.34°N, 133.73°WInklin — 59.23°N, 133.83°WInklin — 59.30°N, 133.93°WInklin — 59.42°N, 134.00°WAllgäu — 47.18°N, 9.98°EAllgäu — 47.15°N, 10.10°ETűzkövesárok Limestone — 47.28°N, 18.08°ELower Lias — 51.80°N, 1.88°WMaude — 53.17°N, 132.03°WMaude — 53.32°N, 132.48°WSpatsizi — 57.50°N, 128.90°WSpatsizi — 57.53°N, 129.03°WCold Fish Volcanics — 57.67°N, 128.86°WCold Fish Volcanics — 57.50°N, 128.90°WCold Fish Volcanics — 57.72°N, 129.17°WIsztimér Limestone — 47.18°N, 17.88°EEl Cholo — 34.95°S, 69.72°WSunrise — 38.50°N, 118.08°WSandilands — 52.76°N, 131.55°WBalimbu — 5.70°S, 144.90°EAlmonacid de la Cuba — 41.29°N, 0.79°WMaftah 1 top to Maftah 2 base — 33.46°N, 4.99°WAdnet — 48.89°N, 19.08°EAdnet — 47.17°N, 9.99°EAsientos — 25.98°S, 69.17°WAin Ouarka — 32.71°N, 0.16°W

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The named rock units Tropidoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 159 occurrences have no formation on record, which is common for older literature.

Tropidoceras and its relatives

Early Jurassic

Where Tropidoceras and its relatives were recorded in the Early Jurassic.

Found in the same rock

372 taxa

The Paleobiology Database records 226 sites for Tropidoceras, 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

34 references

Each of the 338 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. 22 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 Tropidoceras

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Tropidoceras 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 itTropidoceratinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1867