Natrix maura

The viperine water snake or viperine snake is a semiaquatic, fish-eating natricine water snake. Despite its common names, it is not a member of the subfamily Viperinae. It was given its common names due to exhibiting a dorsal colour pattern that superficially resembles that of sympatric adder species. In comparison to other Natrix species its head is also somewhat wider and more distinct from the neck. Like most members of the Natricinae it possesses a venom gland on each side of the upper jaw that produces a mild venom that may play a role in swallowing or digestion. The gland is not associated with an enlarged specialized tooth and the venom has to be applied by chewing. The species usually does not bite as a means of defense, and the effect of a bite would be harmless to humans.

Natrix maura

Charles J. Sharp · CC BY-SA 4.0 · 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
NatrixPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 2.4 million years on record.

The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.

Pliocene — about 2 of 14 occurrencesPliocenePleistocene — about 12 of 14 occurrencesPleistoceneHolocene — about 0 of 14 occurrences3.7–3.6 Mya — about 0.0 occurrences3.6–3.4 Mya — about 0.2 occurrences3.4–3.3 Mya — about 0.2 occurrences3.3–3.1 Mya — about 0.2 occurrences3.1–3.0 Mya — about 0.2 occurrences3.0–2.9 Mya — about 0.2 occurrences2.9–2.7 Mya — about 0.2 occurrences2.7–2.6 Mya — about 0.2 occurrences2.6–2.5 Mya — about 0.3 occurrences2.5–2.3 Mya — about 0.3 occurrences2.3–2.2 Mya — about 0.2 occurrences2.2–2.0 Mya — about 0.2 occurrences2.0–1.9 Mya — about 0.2 occurrences1.9–1.8 Mya — about 0.2 occurrences1.8–1.6 Mya — about 0.2 occurrences1.6–1.5 Mya — about 0.2 occurrences1.5–1.4 Mya — about 0.2 occurrences1.4–1.2 Mya — about 0.2 occurrences1.2–1.1 Mya — about 0.2 occurrences1.1–957 ka Mya — about 0.2 occurrences957 ka–820 ka Mya — about 0.2 occurrences820 ka–683 ka Mya — about 1 occurrence683 ka–547 ka Mya — about 1 occurrence547 ka–410 ka Mya — about 1 occurrence410 ka–273 ka Mya — about 1 occurrence273 ka–137 ka Mya — about 1 occurrence137 ka–0 Mya — about 3 occurrences2.58 Mya129 ka4.1 Mya0 Mya

14 occurrences of Natrix maura 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

14 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.

Natrix maura and its relatives

Pleistocene

Where Natrix maura and its relatives were recorded in the Pleistocene.

Found in the same rock

182 taxa

The Paleobiology Database records 14 sites for Natrix maura, 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

9 references

Each of the 14 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 content2

Picture of Natrix maura

Credit
Charles J. Sharp
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Natrix maura · cumv:herps:R-0009137

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 itNatrix through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Linnaeus 1758)