Pachyrhizodus

Searched as Pachyrhizodus marathonensis. The Paleobiology Database treats Pachyrhizodus as the accepted name.

Pachyrhizodus is an extinct genus of ray-finned fish that lived during the Cretaceous to Paleocene in what is now Europe, North America, South America, and Oceania. Many species are known, primarily from the Cretaceous of England and the midwestern United States.

Pachyrhizodus

Fishboy86164577 · 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
PachyrhizodontidaePBDB
Diet
carnivorePBDB, for Crossognathiformes
Life habit
nektonicPBDB, for Crossognathiformes
Motility
actively mobilePBDB, for Crossognathiformes

Time the record covers

At most 5.8 million years on record.

The one occurrence read is dated to somewhere between 106.3 Mya and 100.5 Mya, which is a dating window rather than a span.

Early Cretaceous — about 1 of 1 occurrenceEarly CretaceousLate Cretaceous — about 0 of 1 occurrence106–106 Mya — about 0.0 occurrences106–106 Mya — about 0.0 occurrences106–106 Mya — about 0.0 occurrences106–105 Mya — about 0.0 occurrences105–105 Mya — about 0.0 occurrences105–105 Mya — about 0.0 occurrences105–105 Mya — about 0.0 occurrences105–105 Mya — about 0.0 occurrences105–104 Mya — about 0.0 occurrences104–104 Mya — about 0.0 occurrences104–104 Mya — about 0.0 occurrences104–104 Mya — about 0.0 occurrences104–103 Mya — about 0.0 occurrences103–103 Mya — about 0.0 occurrences103–103 Mya — about 0.0 occurrences103–103 Mya — about 0.0 occurrences103–102 Mya — about 0.0 occurrences102–102 Mya — about 0.0 occurrences102–102 Mya — about 0.0 occurrences102–102 Mya — about 0.0 occurrences102–102 Mya — about 0.0 occurrences102–101 Mya — about 0.0 occurrences101–101 Mya — about 0.0 occurrences101–101 Mya — about 0.0 occurrences101–101 Mya — about 0.0 occurrences101–100 Mya — about 0.0 occurrences106.8 Mya100 Mya

1 occurrence of Pachyrhizodus on record, most of them in the Early Cretaceous. 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.

Found in

1 formation

Toolebuc — 23.27°S, 140.51°E

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The named rock units Pachyrhizodus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Pachyrhizodus and its relatives

Early Cretaceous

Where Pachyrhizodus and its relatives were recorded in the Early Cretaceous.

Found in the same rock

480 taxa

The Paleobiology Database records 66 sites for Pachyrhizodus, 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 content1

Picture of Pachyrhizodus

Credit
Fishboy86164577
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Pachyrhizodus was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itPachyrhizodontidae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.