Mackenziurus

Mackenziurus is a genus of phacopid trilobites from the Silurian containing several species, including four named after members of the American punk band the Ramones.

Mackenziurus

Kennethgass · 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
EncrinuridaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At most 17 million years on record.

Every occurrence read is dated to somewhere between 443.1 Mya and 426.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 0 of 15 occurrencesSilurian — about 15 of 15 occurrencesSilurian444–443 Mya — about 0.0 occurrences443–442 Mya — about 0.1 occurrences442–442 Mya — about 0.1 occurrences442–441 Mya — about 0.1 occurrences441–441 Mya — about 0.1 occurrences441–440 Mya — about 0.1 occurrences440–440 Mya — about 0.1 occurrences440–439 Mya — about 0.1 occurrences439–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–436 Mya — about 0.1 occurrences436–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–433 Mya — about 0.1 occurrences433–433 Mya — about 0.6 occurrences433–432 Mya — about 1 occurrence432–431 Mya — about 1 occurrence431–431 Mya — about 1 occurrence431–430 Mya — about 1 occurrence430–430 Mya — about 1 occurrence430–429 Mya — about 1 occurrence429–429 Mya — about 1 occurrence429–428 Mya — about 1 occurrence428–427 Mya — about 1 occurrence427–427 Mya — about 1 occurrence427–426 Mya — about 0.2 occurrences443.6 Mya426.2 Mya

15 occurrences of Mackenziurus on record, most of them in the Silurian. 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

15 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

3 formations

Cape Phillips — 75.80°N, 94.50°WCape Phillips — 75.40°N, 95.80°WRacine — 43.05°N, 88.01°WDelorme — 62.40°N, 127.00°W

Loading coastlines…

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

Mackenziurus and its relatives

Silurian

Where Mackenziurus and its relatives were recorded in the Silurian.

Found in the same rock

75 taxa

The Paleobiology Database records 15 sites for Mackenziurus, 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 15 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 content1

Picture of Mackenziurus

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

No 3D scan of Mackenziurus was found in MorphoSource and Sketchfab.

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 itEncrinuridae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Edgecom 1990