Heterodon

Heterodon is a genus of harmless colubrid snakes endemic to North America. They are stout with upturned snouts and are perhaps best known for their characteristic threat displays. Three species are currently recognized. Members of the genus are commonly known as hognose snakes, hog-nosed snakes, North American hog-nosed snakes, and colloquially puff adders.

Heterodon

Dawson at en.wikipedia · 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
Also called
hog-nosed snakePBDB
Sits inside
XenodontinaePBDB
Diet
carnivorePBDB
Life habit
ground dwellingPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 9.3 million years on record.

The record covers at least 9.4 Mya to 11.7 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.

Oligocene — about 0 of 72 occurrencesMiocene — about 8 of 72 occurrencesMiocenePliocene — about 7 of 72 occurrencesPliocenePleistocene — about 41 of 72 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.0 occurrences22–21 Mya — about 0.0 occurrences21–20 Mya — about 0.0 occurrences20–20 Mya — about 0.0 occurrences20–19 Mya — about 0.0 occurrences19–18 Mya — about 0.0 occurrences18–17 Mya — about 0.0 occurrences17–16 Mya — about 0.0 occurrences16–16 Mya — about 0.0 occurrences16–15 Mya — about 0.0 occurrences15–14 Mya — about 0.0 occurrences14–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–12 Mya — about 0.4 occurrences12–11 Mya — about 0.5 occurrences11–10 Mya — about 0.5 occurrences10–9.4 Mya — about 0.5 occurrences9.4–8.6 Mya — about 1 occurrence8.6–7.8 Mya — about 1 occurrence7.8–7.1 Mya — about 1 occurrence7.1–6.3 Mya — about 1 occurrence6.3–5.5 Mya — about 1 occurrence5.5–4.7 Mya — about 1.0 occurrences4.7–3.9 Mya — about 2 occurrences3.9–3.1 Mya — about 2 occurrences3.1–2.4 Mya — about 3 occurrences2.4–1.6 Mya — about 4 occurrences1.6–785 ka Mya — about 10 occurrences785 ka–0 Mya — about 43 occurrences9.4 Mya11.7 ka23.5 Mya0 Mya

72 occurrences of Heterodon on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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

72 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

11 formations

Kingsdown — 37.20°N, 100.30°WKingsdown — 37.04°N, 100.50°WRexroad — 37.20°N, 100.30°WRexroad — 37.13°N, 100.48°WAlamosa — 37.37°N, 105.75°WLong Pine — 42.38°N, 98.23°WCrooked Creek — 37.20°N, 100.30°WMcPherson — 38.30°N, 97.60°WBidahochi — 35.80°N, 110.10°WAsh Hollow — 41.30°N, 101.89°WRed Crag — 51.96°N, 1.35°EAlachua — 29.55°N, 82.52°WGood Creek — 34.00°N, 99.80°W

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The named rock units Heterodon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 occurrences have no formation on record, which is common for older literature.

Heterodon and its relatives

Pleistocene

Where Heterodon and its relatives were recorded in the Pleistocene.

Found in the same rock

1,010 taxa

The Paleobiology Database records 64 sites for Heterodon, 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

37 references

Each of the 72 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. 25 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 content3

Picture of Heterodon

Credit
Dawson at en.wikipedia
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

3D scan

Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it
Specimen
Alasmidonta heterodon

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
HETERODON PLATYRHINOS · UMMZ:Herps:183628

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 itXenodontinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Latreille 1801