Tropidoclonion

Tropidoclonion is a genus of snake in the subfamily Natricinae of the family Colubridae. The genus is monotypic, containing the sole species Tropidoclonion lineatum, commonly known as the lined snake. The species is native to the central United States.

Tropidoclonion

Dawson · CC BY-SA 2.5 · 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
NatricinaePBDB
Diet
carnivorePBDB
Life habit
ground dwellingPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 8 million years on record.

The record covers at least 9.4 Mya to 1.4 Mya. No occurrence read is dated outside 12.5 Mya to 210 ka.

Miocene — about 1 of 4 occurrencesMiocenePliocene — about 0 of 4 occurrencesPleistocene — about 3 of 4 occurrencesPleistoceneHolocene — about 0 of 4 occurrences13–12 Mya — about 0.1 occurrences12–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–10.0 Mya — about 0.1 occurrences10.0–9.5 Mya — about 0.1 occurrences9.5–9.1 Mya — about 0.0 occurrences1.7–1.3 Mya — about 0.3 occurrences1.3–867 ka Mya — about 1 occurrence867 ka–433 ka Mya — about 1 occurrence433 ka–0 Mya — about 0.6 occurrences9.4 Mya1.4 Mya13 Mya0 Mya

4 occurrences of Tropidoclonion on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

4 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

2 formations

McPherson — 38.30°N, 97.60°WAsh Hollow — 42.63°N, 100.05°W

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The named rock units Tropidoclonion has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Tropidoclonion and its relatives

Pleistocene

Where Tropidoclonion and its relatives were recorded in the Pleistocene.

Found in the same rock

134 taxa

The Paleobiology Database records 4 sites for Tropidoclonion, 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

3 references

Each of the 4 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. 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 Tropidoclonion

Credit
Dawson
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

No 3D scan of Tropidoclonion 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.

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 itNatricinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1860