Pachyosteus bulla

Pachyosteus is an extinct monospecific genus of medium-sized selenosteid arthrodire placoderm known from the Upper Frasnian Kellwasserkalk facies of Late Devonian Bad Wildungen, Germany and from the Famennian portions of the Holy Cross Mountains of Poland. The type species Pachyosteus bulla has a broad skull about 7 to 10 centimetres long, a comparatively long median dorsal plate, and a short rostral plate that meets the pineal plate.

Pachyosteus bulla

Apokryltaros · CC BY-SA 3.0 · 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
PachyosteusPBDB
Diet
carnivorePBDB, for Arthrodira
Life habit
nektonicPBDB, for Arthrodira
Motility
actively mobilePBDB, for Arthrodira

Time the record covers

At most 3.8 million years on record.

The one occurrence read is dated to somewhere between 379 Mya and 375.2 Mya, which is a dating window rather than a span.

Devonian — about 1 of 1 occurrenceDevonian379–379 Mya — about 0.0 occurrences379–379 Mya — about 0.0 occurrences379–379 Mya — about 0.0 occurrences379–378 Mya — about 0.0 occurrences378–378 Mya — about 0.0 occurrences378–378 Mya — about 0.0 occurrences378–378 Mya — about 0.0 occurrences378–378 Mya — about 0.0 occurrences378–378 Mya — about 0.0 occurrences378–377 Mya — about 0.0 occurrences377–377 Mya — about 0.0 occurrences377–377 Mya — about 0.0 occurrences377–377 Mya — about 0.0 occurrences377–377 Mya — about 0.0 occurrences377–377 Mya — about 0.0 occurrences377–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–376 Mya — about 0.0 occurrences376–375 Mya — about 0.0 occurrences375–375 Mya — about 0.0 occurrences379.5 Mya374.7 Mya

1 occurrence of Pachyosteus bulla on record, most of them in the Devonian. 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.

Pachyosteus bulla and its relatives

Devonian

Where Pachyosteus bulla and its relatives were recorded in the Devonian.

Found in the same rock

26 taxa

The Paleobiology Database records 1 site for Pachyosteus bulla, 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 Pachyosteus bulla

Credit
Apokryltaros
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Pachyosteus bulla 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 itPachyosteus through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1903