Natricinae

The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae). The subfamily comprises 36 genera. Members include many very common snake species, such as the European grass snakes, and the North American water snakes and garter snakes. Some Old World members of the subfamily are known as keelbacks, because their dorsal scales exhibit strong keeling.

Natricinae

Orchi · CC BY-SA 3.0 · 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
ColubridaePBDB
Diet
carnivorePBDB, for Colubridae
Life habit
ground dwellingPBDB, for Colubridae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 23 million years on record.

The record covers at least 23.04 Mya to 11.7 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.

Oligocene — about 1 of 181 occurrencesOligoceneMiocene — about 84 of 181 occurrencesMiocenePliocene — about 22 of 181 occurrencesPliocenePleistocene — about 73 of 181 occurrencesPleistocene28–27 Mya — about 0.1 occurrences27–26 Mya — about 0.2 occurrences26–25 Mya — about 0.2 occurrences25–24 Mya — about 0.2 occurrences24–23 Mya — about 0.2 occurrences23–22 Mya — about 0.4 occurrences22–21 Mya — about 1 occurrence21–20 Mya — about 1 occurrence20–19 Mya — about 2 occurrences19–19 Mya — about 2 occurrences19–18 Mya — about 3 occurrences18–17 Mya — about 5 occurrences17–16 Mya — about 11 occurrences16–15 Mya — about 8 occurrences15–14 Mya — about 8 occurrences14–13 Mya — about 7 occurrences13–12 Mya — about 9 occurrences12–11 Mya — about 7 occurrences11–10 Mya — about 4 occurrences10–9.3 Mya — about 3 occurrences9.3–8.4 Mya — about 2 occurrences8.4–7.4 Mya — about 3 occurrences7.4–6.5 Mya — about 3 occurrences6.5–5.6 Mya — about 3 occurrences5.6–4.6 Mya — about 5 occurrences4.6–3.7 Mya — about 9 occurrences3.7–2.8 Mya — about 7 occurrences2.8–1.9 Mya — about 11 occurrences1.9–928 ka Mya — about 21 occurrences928 ka–0 Mya — about 45 occurrences23.04 Mya11.7 ka27.8 Mya0 Mya

181 occurrences of Natricinae on record, most of them in the Miocene. 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

181 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

31 formations

Ash Hollow — 41.30°N, 101.89°WAsh Hollow — 42.63°N, 100.05°WAsh Hollow — 42.30°N, 98.00°WValentine — 42.78°N, 100.03°WValentine — 42.81°N, 100.05°WValentine — 42.80°N, 100.80°WValentine — 40.02°N, 98.53°WKingsdown — 37.20°N, 100.30°WKingsdown — 37.04°N, 100.50°WMcPherson — 38.30°N, 97.60°WBermont — 27.70°N, 82.50°WFleming — 30.70°N, 94.70°WFleming — 30.80°N, 94.30°WFleming — 30.50°N, 95.00°WRexroad — 37.10°N, 100.90°WRexroad — 37.20°N, 100.30°WRexroad — 37.13°N, 100.48°WUpper Freshwater Molasse — 48.44°N, 11.04°EUpper Freshwater Molasse — 48.63°N, 11.80°EUpper Freshwater Molasse — 48.16°N, 10.11°ELong Pine — 42.38°N, 98.23°WTamiami — 27.37°N, 82.45°WTamiami — 27.78°N, 82.68°WWiesbaden — 50.04°N, 8.27°EArikaree — 43.20°N, 108.20°WKomnina — 40.43°N, 21.80°ESplit Rock — 43.00°N, 108.00°WFort Randall — 43.10°N, 98.30°WOgallala — 39.08°N, 99.75°WTorreya — 30.50°N, 84.50°WMost — 50.42°N, 13.36°EAlachua — 29.55°N, 82.52°W"unnamed sandstone" — 33.90°N, 117.00°WFort Thompson — 27.80°N, 82.80°WStudienka — 48.20°N, 17.98°EWicomico — 29.42°N, 82.22°WCrooked Creek — 37.20°N, 100.30°W

Loading coastlines…

The named rock units Natricinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 110 occurrences have no formation on record, which is common for older literature.

Natricinae and its relatives

Miocene

Where Natricinae and its relatives were recorded in the Miocene.

Found in the same rock

2,217 taxa

The Paleobiology Database records 130 sites for Natricinae, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

105 references

Each of the 181 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. 93 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 content1

Picture of Natricinae

Credit
Orchi
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itColubridae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bonaparte 1838