Hedenstroemiidae

Hedenstroemiidae is an extinct family of cephalopods in the ammonoid order Ceratitida. They were nektonic carnivores.

Hedenstroemiidae

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
SagecerataceaePBDB
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 6.7 million years on record.

The record covers at least 251.1 Mya to 244.4 Mya. No occurrence read is dated outside 251.902 Mya to 241.464 Mya.

Permian — about 0 of 440 occurrencesEarly Triassic — about 418 of 440 occurrencesEarly TriassicMiddle Triassic — about 22 of 440 occurrencesMiddle Triassic252–252 Mya — about 1 occurrence252–251 Mya — about 2 occurrences251–251 Mya — about 35 occurrences251–250 Mya — about 51 occurrences250–250 Mya — about 50 occurrences250–250 Mya — about 50 occurrences250–249 Mya — about 50 occurrences249–249 Mya — about 50 occurrences249–249 Mya — about 49 occurrences249–248 Mya — about 19 occurrences248–248 Mya — about 19 occurrences248–247 Mya — about 19 occurrences247–247 Mya — about 19 occurrences247–247 Mya — about 5 occurrences247–246 Mya — about 2 occurrences246–246 Mya — about 2 occurrences246–246 Mya — about 2 occurrences246–245 Mya — about 2 occurrences245–245 Mya — about 2 occurrences245–244 Mya — about 2 occurrences244–244 Mya — about 2 occurrences244–244 Mya — about 2 occurrences244–243 Mya — about 1 occurrence243–243 Mya — about 1.0 occurrences243–242 Mya — about 1.0 occurrences242–242 Mya — about 1.0 occurrences242–242 Mya — about 1.0 occurrences242–241 Mya — about 0.7 occurrences251.1 Mya244.4 Mya252.4 Mya241 Mya

440 occurrences of Hedenstroemiidae on record, most of them in the Early 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

440 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

Thaynes — 42.69°N, 111.47°WThaynes — 42.23°N, 111.44°WThaynes — 42.12°N, 111.25°WThaynes — 41.53°N, 114.13°WThaynes — 41.54°N, 114.17°WThaynes — 42.14°N, 111.22°WThaynes — 41.55°N, 114.14°WThaynes — 39.33°N, 113.70°WThaynes — 39.41°N, 113.69°WThaynes — 38.67°N, 112.52°WThaynes — 38.23°N, 112.89°WThaynes — 41.06°N, 111.57°WThaynes — 40.85°N, 113.19°WZhitkov — 43.30°N, 132.45°EZhitkov — 42.92°N, 132.30°EZhitkov — 42.93°N, 132.42°EZhitkov — 43.03°N, 131.93°EZhitkov — 42.93°N, 131.92°EZhitkov — 43.32°N, 132.17°EZhitkov — 43.43°N, 132.44°EMikin — 31.97°N, 78.02°EMikin — 32.43°N, 77.75°EMikin — 32.04°N, 78.09°EMikin — 32.15°N, 78.24°ELuolou — 24.65°N, 106.83°ELuolou — 24.81°N, 106.55°ELuolou — 24.95°N, 106.45°ELuolou — 25.14°N, 107.35°ELuolou — 26.55°N, 106.65°ELuolou — 24.40°N, 106.81°ELuolou — 25.75°N, 106.11°EKangshare — 28.66°N, 85.82°EKangshare — 28.57°N, 85.96°EKangshare — 28.52°N, 86.69°ECeratite Marls — 32.55°N, 71.79°ECeratite Marls — 32.66°N, 71.80°ECeratite Marls — 32.50°N, 72.00°ECeratite Marls — 32.41°N, 72.10°ECeratite Marls — 32.50°N, 71.94°ETobizin — 43.05°N, 131.92°ETobizin — 42.92°N, 131.90°ETobizin — 43.17°N, 132.00°ECeratite Sandstone — 32.66°N, 71.80°ECeratite Sandstone — 32.78°N, 71.65°ECeratite Sandstone — 32.55°N, 71.79°EBlind Fiord — 80.55°N, 95.37°WBlind Fiord — 81.05°N, 90.10°WBlind Fiord — 80.83°N, 90.67°WBlind Fiord — 81.38°N, 93.50°WBlind Fiord — 79.50°N, 90.00°WBlind Fiord — 80.49°N, 94.47°WMarmarotrapeza — 38.42°N, 26.00°EOsawa — 38.81°N, 141.55°EOsawa — 38.71°N, 141.54°EOsawa — 38.69°N, 141.35°EOsawa — 38.61°N, 141.52°EMirkin — 31.96°N, 78.03°EHan-Bulog — 42.02°N, 19.81°ELower Ceratite Limestone — 32.55°N, 71.79°ELower Ceratite Limestone — 32.45°N, 72.03°EBac Thuy — 21.72°N, 106.67°EBac Thuy — 21.84°N, 106.73°ELazurnaya — 43.00°N, 131.92°ELazurnaya — 43.17°N, 132.00°ELazurnaya — 42.93°N, 132.42°ETartalinskaya — 44.36°N, 51.40°ERöt — 50.80°N, 13.32°ERöt — 50.78°N, 11.36°ERöt — 50.93°N, 11.59°EVikinghogda — 78.33°N, 16.48°EVikinghogda — 78.34°N, 16.41°EVikinghogda — 78.48°N, 15.56°EPastanakhskaya/Ystannakhskaya — 72.85°N, 120.98°ETulong — 28.45°N, 86.13°ETulong — 28.45°N, 86.24°EUpper Ceratite Limestone — 32.65°N, 71.79°EToad — 56.87°N, 123.53°WToad — 59.38°N, 124.93°WVikinghøgda — 78.22°N, 17.51°E

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The named rock units Hedenstroemiidae 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. 131 occurrences have no formation on record, which is common for older literature.

Hedenstroemiidae and its relatives

Early Triassic

Where Hedenstroemiidae and its relatives were recorded in the Early Triassic.

Found in the same rock

768 taxa

The Paleobiology Database records 344 sites for Hedenstroemiidae, 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

99 references

Each of the 440 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. 87 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 Hedenstroemiidae

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

No 3D scan of Hedenstroemiidae 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 itSagecerataceae through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Waagen 1895