Amphisbaena

Amphisbaena is a genus in the family Amphisbaenidae, commonly known as worm lizards. Currently 102 species are placed in this diverse genus. They are legless, with ring-like scales, and highly reduced eyes. They are subterranean predators, feeding mainly on soil-dwelling invertebrates. They are native to South America and the Caribbean.

Amphisbaena

Diogo B. Provete · 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
AmphisbaenidaePBDB
Diet
insectivorePBDB, for Amphisbaenidae
Life habit
fossorialPBDB, for Amphisbaenidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amphisbaenia

Time the record covers

At most 2.6 million years on record.

Every occurrence read is dated to somewhere between 2.58 Mya and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pliocene — about 0 of 4 occurrencesPleistocene — about 3 of 4 occurrencesPleistoceneHolocene — about 1 of 4 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.1 occurrences2.5–2.4 Mya — about 0.1 occurrences2.4–2.3 Mya — about 0.1 occurrences2.3–2.2 Mya — about 0.1 occurrences2.2–2.1 Mya — about 0.1 occurrences2.1–2.0 Mya — about 0.1 occurrences2.0–1.8 Mya — about 0.1 occurrences1.8–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.5 Mya — about 0.1 occurrences1.5–1.4 Mya — about 0.1 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–1.0 Mya — about 0.1 occurrences1.0–924 ka Mya — about 0.1 occurrences924 ka–821 ka Mya — about 0.1 occurrences821 ka–719 ka Mya — about 0.1 occurrences719 ka–616 ka Mya — about 0.1 occurrences616 ka–513 ka Mya — about 0.1 occurrences513 ka–411 ka Mya — about 0.1 occurrences411 ka–308 ka Mya — about 0.1 occurrences308 ka–205 ka Mya — about 0.1 occurrences205 ka–103 ka Mya — about 0.3 occurrences103 ka–0 Mya — about 2 occurrences3.08 Mya0 Mya

4 occurrences of Amphisbaena 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

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.

Amphisbaena and its relatives

Pleistocene

Where Amphisbaena and its relatives were recorded in the Pleistocene.

Found in the same rock

53 taxa

The Paleobiology Database records 3 sites for Amphisbaena, 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content2

Picture of Amphisbaena

Credit
Diogo B. Provete
Licence
CC BY-SA 2.5
Commercial use
the licence allows it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Amphisbaena sp. · UFPI:CHNUFPI:0790

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 itAmphisbaenidae through timeFormations of the PleistoceneThe world it lived on

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