Grammonus

Grammonus

Uncredited · via Wikidata/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
BythitidaePBDB
Diet
carnivore, parasitePBDB, for Ophidiiformes
Life habit
nektobenthicPBDB, for Ophidiiformes
Motility
actively mobilePBDB, for Ophidiiformes

Time the record covers

At least 40 million years on record.

The record covers at least 41.03 Mya to 774 ka. No occurrence read is dated outside 48.07 Mya to 129 ka.

Eocene — about 8 of 29 occurrencesEoceneOligocene — about 0 of 29 occurrencesMiocene — about 13 of 29 occurrencesMiocenePliocene — about 3 of 29 occurrencesPleistocene — about 5 of 29 occurrences49–47 Mya — about 0.7 occurrences47–46 Mya — about 2 occurrences46–44 Mya — about 2 occurrences44–42 Mya — about 2 occurrences42–41 Mya — about 1 occurrence39–38 Mya — about 0.0 occurrences38–36 Mya — about 0.4 occurrences36–34 Mya — about 0.4 occurrences34–33 Mya — about 0.1 occurrences13–11 Mya — about 0.4 occurrences11–9.8 Mya — about 3 occurrences9.8–8.2 Mya — about 3 occurrences8.2–6.5 Mya — about 3 occurrences6.5–4.9 Mya — about 3 occurrences4.9–3.3 Mya — about 1 occurrence3.3–1.6 Mya — about 4 occurrences1.6–0 Mya — about 3 occurrences41.03 Mya774 ka49 Mya0 Mya

29 occurrences of Grammonus on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

29 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

6 formations

Miretrain Marl — 43.56°N, 1.11°WLindos Bay — 36.09°N, 28.01°ELindos Bay — 36.26°N, 28.17°ELindos Bay — 36.36°N, 28.21°EDonzacq Marl — 43.75°N, 0.84°WSant’Agata Fossili — 45.07°N, 7.94°ESant’Agata Fossili — 45.07°N, 7.97°ENousse — 43.57°N, 1.11°Wfacies à Congeria — 45.05°N, 7.93°E

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The named rock units Grammonus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 occurrences have no formation on record, which is common for older literature.

Grammonus and its relatives

Miocene

Where Grammonus and its relatives were recorded in the Miocene.

Found in the same rock

552 taxa

The Paleobiology Database records 27 sites for Grammonus, 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

12 references

Each of the 29 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 Grammonus

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Grammonus ater · MCZ:Ich:26457

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itBythitidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gill 1896