Mastigodryas cf. bifossatus

Mastigodryas is a genus of colubrid snakes. Like some other colubrids, they are commonly called racers. It is a Neotropical genus, with members distributed from Mexico to Argentina and several islands in the Caribbean. Some authorities use the older generic name, Dryadophis, for these species.

A picture published with the record for Mastigodryas cf. bifossatus. What it shows has not been checked.

DuSantos · CC BY 2.0 · 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.

Time the record covers

At most 118 thousand years on record.

The one occurrence read is dated to somewhere between 129 ka and 11.7 ka, which is a dating window rather than a span.

Pleistocene — about 1 of 1 occurrencePleistoceneHolocene — about 0 of 1 occurrence147 ka–126 ka Mya — about 0.0 occurrences126 ka–105 ka Mya — about 0.2 occurrences105 ka–84 ka Mya — about 0.2 occurrences84 ka–63 ka Mya — about 0.2 occurrences63 ka–42 ka Mya — about 0.2 occurrences42 ka–21 ka Mya — about 0.2 occurrences21 ka–0 Mya — about 0.1 occurrences629 ka0 Mya

1 occurrence of Mastigodryas cf. bifossatus on record, most of them in the Pleistocene. 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

1 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.

Mastigodryas cf. bifossatus and its relatives

Pleistocene

Where Mastigodryas cf. bifossatus and its relatives were recorded in the Pleistocene.

Found in the same rock

57 taxa

The Paleobiology Database records 1 site for Mastigodryas cf. bifossatus, 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

1 reference

Each of the 1 occurrence 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Mastigodryas cf. bifossatus

Credit
DuSantos
Licence
CC BY 2.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Mastigodryas melanolomus · UCM:Herpetology:UCM:Herp:28122

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.