Protrachyceras

Protrachyceras is a genus of ceratitid ammonoid cephalopods belonging to the family Trachyceratidae.

Protrachyceras

Ghedoghedo · 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
ProtrachyceratinaePBDB
Diet
carnivorePBDB, for Ceratitida
Life habit
nektonicPBDB, for Ceratitida
Motility
actively mobilePBDB, for Ceratitida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 10 million years on record.

The record covers at least 244.4 Mya to 233.6 Mya. No occurrence read is dated outside 247 Mya to 201.4 Mya.

Early Triassic — about 0 of 171 occurrencesMiddle Triassic — about 145 of 171 occurrencesMiddle TriassicLate Triassic — about 26 of 171 occurrencesLate TriassicEarly Jurassic — about 0 of 171 occurrences248–246 Mya — about 0.9 occurrences246–245 Mya — about 3 occurrences245–243 Mya — about 4 occurrences243–242 Mya — about 7 occurrences242–240 Mya — about 27 occurrences240–238 Mya — about 49 occurrences238–237 Mya — about 54 occurrences237–235 Mya — about 6 occurrences235–234 Mya — about 6 occurrences234–232 Mya — about 3 occurrences232–231 Mya — about 3 occurrences231–229 Mya — about 3 occurrences229–227 Mya — about 3 occurrences227–226 Mya — about 0.2 occurrences226–224 Mya — about 0.1 occurrences224–223 Mya — about 0.1 occurrences223–221 Mya — about 0.1 occurrences221–219 Mya — about 0.1 occurrences219–218 Mya — about 0.1 occurrences218–216 Mya — about 0.1 occurrences216–215 Mya — about 0.1 occurrences215–213 Mya — about 0.1 occurrences213–212 Mya — about 0.1 occurrences212–210 Mya — about 0.1 occurrences210–208 Mya — about 0.1 occurrences208–207 Mya — about 0.1 occurrences207–205 Mya — about 0.1 occurrences205–204 Mya — about 0.1 occurrences204–202 Mya — about 0.1 occurrences202–200 Mya — about 0.0 occurrences244.4 Mya233.6 Mya247.9 Mya200.5 Mya

171 occurrences of Protrachyceras 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

171 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

41 formations

Toad — 56.16°N, 122.59°WToad — 56.33°N, 122.74°WToad — 59.27°N, 125.38°WToad — 58.34°N, 124.37°WToad — 57.20°N, 123.26°WToad — 57.24°N, 123.39°WEsino — 45.92°N, 9.70°EEsino — 45.97°N, 9.36°EBuchenstein — 45.82°N, 10.47°EBuchenstein — 46.57°N, 11.67°EBuchenstein — 46.00°N, 10.55°EBuchenstein — 46.55°N, 11.62°EBuchenstein — 45.76°N, 10.25°EBuchenstein — 46.45°N, 12.01°EWengen — 46.50°N, 11.73°EWengen — 46.51°N, 11.60°EWengen — 46.55°N, 11.87°EWengen — 46.50°N, 11.76°ESaharonim — 30.60°N, 34.82°EArenal d'en Castell — 39.96°N, 4.22°EArenal d'en Castell — 39.99°N, 4.11°EArenal d'en Castell — 40.05°N, 3.92°EArenal d'en Castell — 40.07°N, 4.08°EXiaowa — 25.90°N, 105.42°EFalang — 25.46°N, 105.50°ESulphur Mountain — 54.69°N, 121.00°WSulphur Mountain — 55.24°N, 122.10°WSulphur Mountain — 55.32°N, 122.23°WSulphur Mountain — 54.82°N, 121.33°WLanmu — 24.00°N, 109.00°EZhuganpo — 25.90°N, 105.42°ENam Tham — 21.50°N, 104.00°ESan Cassiano — 46.53°N, 11.42°ELiard — 55.59°N, 122.75°WLiard — 59.28°N, 125.28°WMuschelkalk — 41.27°N, 1.12°EHallstatt — 37.60°N, 23.07°ECassian — 46.57°N, 11.94°ECassian — 46.56°N, 11.56°ESan Salvatore — 45.87°N, 8.81°EHanwang — 31.50°N, 104.23°ETschermakfjellet — 78.53°N, 15.35°EMargon Limestone — 46.03°N, 11.08°EBesano — 45.91°N, 8.95°EBianyang — 25.00°N, 106.75°EHong Hoi — 18.42°N, 99.75°E

Loading coastlines…

The named rock units Protrachyceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 further formations hold fewer occurrences each and are not listed. 43 occurrences have no formation on record, which is common for older literature.

Protrachyceras and its relatives

Middle Triassic

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

Found in the same rock

980 taxa

The Paleobiology Database records 123 sites for Protrachyceras, 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

50 references

Each of the 171 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. 38 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 Protrachyceras

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

No 3D scan of Protrachyceras was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itProtrachyceratinae through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Mojsisovics 1893)