Dactylioceratidae

The family Dactylioceratidae comprises Early Jurassic ammonite genera with ribbed and commonly tuberculate shells that resembled later Middle Jurassic stephanoceratids and Upper Jurassic perisphinctids. Shells may be either evolute or involute.

Dactylioceratidae

Uncredited · 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
EoderoceratoideaPBDB
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 least 19 million years on record.

The record covers at least 199.5 Mya to 180.4 Mya. No occurrence read is dated outside 201.4 Mya to 161.5 Mya.

Late Triassic — about 0 of 1427 occurrencesEarly Jurassic — about 1422 of 1427 occurrencesEarly JurassicMiddle Jurassic — about 5 of 1427 occurrencesMiddle JurassicLate Jurassic — about 0 of 1427 occurrences202–201 Mya — about 1 occurrence201–199 Mya — about 3 occurrences199–198 Mya — about 2 occurrences198–197 Mya — about 2 occurrences197–195 Mya — about 2 occurrences195–194 Mya — about 2 occurrences194–193 Mya — about 12 occurrences193–191 Mya — about 38 occurrences191–190 Mya — about 38 occurrences190–188 Mya — about 39 occurrences188–187 Mya — about 39 occurrences187–186 Mya — about 42 occurrences186–184 Mya — about 49 occurrences184–183 Mya — about 443 occurrences183–181 Mya — about 178 occurrences181–180 Mya — about 159 occurrences180–179 Mya — about 102 occurrences179–177 Mya — about 95 occurrences177–176 Mya — about 95 occurrences176–175 Mya — about 83 occurrences175–173 Mya — about 0.9 occurrences173–172 Mya — about 0.9 occurrences172–170 Mya — about 0.8 occurrences170–169 Mya — about 0.6 occurrences169–168 Mya — about 0.5 occurrences168–166 Mya — about 0.3 occurrences166–165 Mya — about 0.2 occurrences165–163 Mya — about 0.2 occurrences163–162 Mya — about 0.2 occurrences162–161 Mya — about 0.1 occurrences199.5 Mya180.4 Mya202.2 Mya160.7 Mya

1,427 occurrences of Dactylioceratidae 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

1,427 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

70 formations

Alum Shale — 54.49°N, 0.60°WAlum Shale — 54.40°N, 0.47°WBugarone — 43.33°N, 13.22°ESubbetic Basin — 37.70°N, 3.63°WSubbetic Basin — 37.38°N, 3.71°WSubbetic Basin — 37.59°N, 3.21°WSubbetic Basin — 38.06°N, 3.26°WSubbetic Basin — 38.13°N, 1.47°WSunrise — 38.49°N, 118.08°WSunrise — 39.33°N, 118.07°WSpatsizi — 57.49°N, 128.89°WSpatsizi — 57.87°N, 129.57°WSpatsizi — 57.87°N, 128.57°WSpatsizi — 57.62°N, 128.97°WSpatsizi — 57.56°N, 128.90°WSpatsizi — 57.52°N, 128.84°WKisgerecse — 47.70°N, 18.43°EKisgerecse — 47.66°N, 18.47°ECamino — 43.05°N, 4.07°WFannin — 52.76°N, 131.55°WFannin — 53.03°N, 131.88°WFannin — 53.18°N, 132.02°WFannin — 53.38°N, 132.27°WFannin — 53.41°N, 132.25°WFannin — 53.20°N, 132.05°WInklin — 59.25°N, 133.85°WInklin — 59.20°N, 133.89°WInklin — 59.27°N, 133.99°WInklin — 59.38°N, 133.92°WInklin — 59.42°N, 134.00°WNishinakayama — 34.25°N, 131.00°EMarnes de Fontaneilles — 43.85°N, 3.12°ECastillo Pedros — 42.89°N, 3.98°WLautaro — 29.36°S, 70.19°WLautaro — 27.66°S, 69.97°WLautaro — 28.20°S, 70.00°WLautaro — 28.14°S, 69.97°WLautaro — 28.25°S, 69.93°WLautaro — 28.31°S, 69.96°WLautaro — 28.16°S, 69.86°WLautaro — 28.15°S, 69.79°WLautaro — 28.02°S, 69.72°WLautaro — 27.70°S, 69.61°WLautaro — 27.89°S, 69.84°WLautaro — 27.91°S, 69.98°WWhiteaves — 53.42°N, 132.26°WWhiteaves — 52.96°N, 131.61°WWhiteaves — 53.19°N, 132.02°WJet Rock — 54.54°N, 0.76°WJet Rock — 54.54°N, 0.75°WJet Rock — 54.48°N, 0.58°WJet Rock — 54.40°N, 0.49°WCastillo Pedroso — 43.15°N, 4.37°WKisgerecse Marl — 47.70°N, 18.49°EOzirovo — 43.22°N, 23.39°EOzirovo — 41.52°N, 24.67°EOzirovo — 43.08°N, 23.23°EOzirovo — 42.69°N, 23.83°EPosidonienschiefer — 49.91°N, 11.46°EPosidonienschiefer — 49.35°N, 11.36°EBayada — 35.08°N, 1.77°WIsztimér — 47.19°N, 17.90°EIsztimér — 47.28°N, 17.84°ESmithers — 56.21°N, 126.35°WStaa — 36.24°N, 9.99°EStaa — 35.11°N, 9.68°EStaa — 36.38°N, 10.13°EStaa — 36.35°N, 10.07°ETagoudite — 31.95°N, 5.04°W

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The named rock units Dactylioceratidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 further formations hold fewer occurrences each and are not listed. 609 occurrences have no formation on record, which is common for older literature.

Dactylioceratidae and its relatives

Early Jurassic

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

Found in the same rock

321 taxa

The Paleobiology Database records 758 sites for Dactylioceratidae, 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

116 references

Each of the 1,427 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. 104 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 content2

Picture of Dactylioceratidae

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itEoderoceratoidea through timeFormations of the Early JurassicThe world it lived on

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