Macrogrammus

Macrogrammus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Arenig stage of the Ordovician Period, a faunal stage which lasted from approximately 478 to 471 million years ago. Its fossil name is Macrogrammus scylfense Whittard named after its British Collector WF Whittard in 1966.

Macrogrammus

via GBIF · CC BY-NC 4.0 · via GBIF. 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
PilekiinaePBDB
Diet
carnivorePBDB, for Cheiruridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Pilekiinae
Environment
marinePBDB, for Trilobita

Time the record covers

At most 9.1 million years on record.

The one occurrence read is dated to somewhere between 477.1 Mya and 468 Mya, which is a dating window rather than a span.

Ordovician — about 1 of 1 occurrenceOrdovician477–477 Mya — about 0.0 occurrences477–477 Mya — about 0.0 occurrences477–476 Mya — about 0.0 occurrences476–476 Mya — about 0.0 occurrences476–476 Mya — about 0.0 occurrences476–475 Mya — about 0.0 occurrences475–475 Mya — about 0.0 occurrences475–475 Mya — about 0.0 occurrences475–474 Mya — about 0.0 occurrences474–474 Mya — about 0.0 occurrences474–474 Mya — about 0.0 occurrences474–473 Mya — about 0.0 occurrences473–473 Mya — about 0.0 occurrences473–473 Mya — about 0.0 occurrences473–472 Mya — about 0.0 occurrences472–472 Mya — about 0.0 occurrences472–472 Mya — about 0.0 occurrences472–471 Mya — about 0.0 occurrences471–471 Mya — about 0.0 occurrences471–471 Mya — about 0.0 occurrences471–470 Mya — about 0.0 occurrences470–470 Mya — about 0.0 occurrences470–470 Mya — about 0.0 occurrences470–469 Mya — about 0.0 occurrences469–469 Mya — about 0.0 occurrences469–469 Mya — about 0.0 occurrences469–468 Mya — about 0.0 occurrences468–468 Mya — about 0.0 occurrences477.6 Mya467.5 Mya

1 occurrence of Macrogrammus on record, most of them in the Ordovician. 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

Mytton Flags and Tankerville — 53.00°N, 3.00°W

Loading coastlines…

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

Macrogrammus and its relatives

Ordovician

Where Macrogrammus and its relatives were recorded in the Ordovician.

Found in the same rock

31 taxa

The Paleobiology Database records 1 site for Macrogrammus, 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 the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Macrogrammus

Source
GBIF
Credit
via GBIF
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan of Macrogrammus 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 itPilekiinae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Whittard 1966