Helopanoplia

A picture published with the record for Helopanoplia. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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
PlastomeniniPBDB
Diet
omnivorePBDB, for Cryptodira
Life habit
aquaticPBDB, for Cryptodira
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwaterPBDB, for Cryptodira

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 70 of 70 occurrencesLate CretaceousPaleocene — about 0 of 70 occurrences84–83 Mya — about 0.1 occurrences83–83 Mya — about 0.6 occurrences83–82 Mya — about 0.6 occurrences82–82 Mya — about 0.6 occurrences82–81 Mya — about 0.6 occurrences81–80 Mya — about 0.6 occurrences80–80 Mya — about 0.6 occurrences80–79 Mya — about 0.6 occurrences79–79 Mya — about 0.6 occurrences79–78 Mya — about 0.6 occurrences78–77 Mya — about 0.6 occurrences77–77 Mya — about 0.6 occurrences77–76 Mya — about 0.6 occurrences76–75 Mya — about 0.6 occurrences75–75 Mya — about 0.6 occurrences75–74 Mya — about 0.6 occurrences74–74 Mya — about 0.6 occurrences74–73 Mya — about 0.6 occurrences73–72 Mya — about 0.6 occurrences72–72 Mya — about 5 occurrences72–71 Mya — about 6 occurrences71–70 Mya — about 6 occurrences70–70 Mya — about 6 occurrences70–69 Mya — about 6 occurrences69–69 Mya — about 6 occurrences69–68 Mya — about 6 occurrences68–67 Mya — about 6 occurrences67–67 Mya — about 6 occurrences67–66 Mya — about 6 occurrences66–66 Mya — about 1 occurrence84.1 Mya65.5 Mya

70 occurrences of Helopanoplia on record, most of them in the Late Cretaceous. 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

70 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

9 formations

Hell Creek — 46.03°N, 103.77°WHell Creek — 46.38°N, 103.96°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.10°N, 103.30°WHell Creek — 46.33°N, 103.90°WHell Creek — 46.46°N, 104.00°WHell Creek — 45.94°N, 103.95°WHell Creek — 47.55°N, 107.13°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.52°N, 106.98°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.60°N, 106.28°WHell Creek — 46.90°N, 101.50°WHell Creek — 46.41°N, 103.50°WHell Creek — 45.89°N, 104.55°WHell Creek — 46.40°N, 103.42°WHell Creek — 46.30°N, 104.50°WHell Creek — 47.50°N, 106.40°WHell Creek — 47.60°N, 106.20°WHell Creek — 46.33°N, 104.01°WLance — 43.30°N, 104.37°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WLance — 43.15°N, 104.57°WLance — 43.17°N, 104.53°WLance — 43.00°N, 104.50°WLance — 43.25°N, 104.52°WKaiparowits — 37.75°N, 111.61°WKaiparowits — 37.42°N, 111.79°WKaiparowits — 37.45°N, 111.53°WAguja — 29.20°N, 103.55°WFerris — 41.80°N, 107.00°WFerris — 41.95°N, 106.89°WDenver — 39.84°N, 105.04°WDenver — 39.50°N, 104.70°WBearpaw Shale — 46.26°N, 109.60°WLaramie — 39.50°N, 104.70°WMenefee — 36.80°N, 108.41°W

Loading coastlines…

The named rock units Helopanoplia has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Helopanoplia and its relatives

Late Cretaceous

Where Helopanoplia and its relatives were recorded in the Late Cretaceous.

Found in the same rock

334 taxa

The Paleobiology Database records 66 sites for Helopanoplia, 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

20 references

Each of the 70 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. 8 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 Helopanoplia

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it

Structured light scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Helopanoplia beecheri · ypm:vp:295

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPlastomenini through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hay 1908