Nerodia

Nerodia is a genus of nonvenomous colubrid snakes commonly referred to as water snakes due to their aquatic behavior. The genus includes nine species, all native to North America. Five of the species have recognized subspecies.

Nerodia

The original uploader was Dawson at English 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
water snakePBDB
Sits inside
NatricinaePBDB
Diet
carnivore, piscivorePBDB
Life habit
amphibiousPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 12 million years on record.

The record covers at least 12.5 Mya to 11.7 ka. No occurrence read is dated outside 16.3 Mya to 0 Mya.

Miocene — about 11 of 69 occurrencesMiocenePliocene — about 10 of 69 occurrencesPliocenePleistocene — about 47 of 69 occurrencesPleistocene17–16 Mya — about 0.0 occurrences16–16 Mya — about 0.4 occurrences16–15 Mya — about 0.4 occurrences15–15 Mya — about 0.4 occurrences15–14 Mya — about 0.4 occurrences14–13 Mya — about 0.4 occurrences13–13 Mya — about 0.4 occurrences13–12 Mya — about 0.6 occurrences12–12 Mya — about 0.9 occurrences12–11 Mya — about 0.9 occurrences11–11 Mya — about 0.9 occurrences11–10 Mya — about 0.9 occurrences10–9.5 Mya — about 0.9 occurrences9.5–9.0 Mya — about 0.5 occurrences9.0–8.4 Mya — about 0.4 occurrences8.4–7.8 Mya — about 0.4 occurrences7.8–7.3 Mya — about 0.4 occurrences7.3–6.7 Mya — about 0.4 occurrences6.7–6.2 Mya — about 0.4 occurrences6.2–5.6 Mya — about 0.4 occurrences5.6–5.0 Mya — about 0.4 occurrences5.0–4.5 Mya — about 1 occurrence4.5–3.9 Mya — about 2 occurrences3.9–3.4 Mya — about 2 occurrences3.4–2.8 Mya — about 2 occurrences2.8–2.2 Mya — about 4 occurrences2.2–1.7 Mya — about 5 occurrences1.7–1.1 Mya — about 8 occurrences1.1–560 ka Mya — about 11 occurrences560 ka–0 Mya — about 22 occurrences12.5 Mya11.7 ka16.8 Mya0 Mya

69 occurrences of Nerodia 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

69 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

12 formations

Kingsdown — 37.20°N, 100.30°WKingsdown — 37.04°N, 100.50°WAsh Hollow — 41.30°N, 101.89°WAsh Hollow — 42.63°N, 100.05°WAsh Hollow — 42.30°N, 98.00°WRexroad — 37.10°N, 100.90°WRexroad — 37.20°N, 100.30°WRexroad — 37.13°N, 100.48°WBermont — 27.70°N, 82.50°WTamiami — 27.37°N, 82.45°WTamiami — 27.78°N, 82.68°WMcPherson — 38.30°N, 97.60°WOgallala — 39.08°N, 99.75°WLong Pine — 42.38°N, 98.23°WValentine — 42.81°N, 100.05°WAlachua — 29.55°N, 82.52°WFort Thompson — 27.80°N, 82.80°WCrooked Creek — 37.20°N, 100.30°W

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The named rock units Nerodia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 44 occurrences have no formation on record, which is common for older literature.

Nerodia and its relatives

Pleistocene

Where Nerodia and its relatives were recorded in the Pleistocene.

Found in the same rock

1,343 taxa

The Paleobiology Database records 62 sites for Nerodia, 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

42 references

Each of the 69 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. 30 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 Nerodia

Credit
The original uploader was Dawson at English Wikipedia .
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
NERODIA SIPEDON · UMMZ:Herps:205025

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. Baird and Girard 1853