Hamatolenus

Hamatolenus

via iDigBio · CC BY-NC-ND · via iDigBio. 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
EllipsocephalidaePBDB
Diet
deposit feederPBDB, for Redlichiida
Life habit
low-level epifaunalPBDB, for Redlichiida
Motility
fast-movingPBDB, for Redlichiida
Vision
well-developedPBDB, for Ellipsocephalidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 9.5 million years on record.

The record covers at least 516 Mya to 506.5 Mya. No occurrence read is dated outside 538.8 Mya to 497 Mya.

Cambrian — about 32 of 32 occurrencesCambrian540–538 Mya — about 0.0 occurrences538–537 Mya — about 0.1 occurrences537–535 Mya — about 0.1 occurrences535–534 Mya — about 0.1 occurrences534–532 Mya — about 0.1 occurrences532–531 Mya — about 0.1 occurrences531–529 Mya — about 0.1 occurrences529–528 Mya — about 0.1 occurrences528–527 Mya — about 0.1 occurrences527–525 Mya — about 0.1 occurrences525–524 Mya — about 0.1 occurrences524–522 Mya — about 0.1 occurrences522–521 Mya — about 0.1 occurrences521–519 Mya — about 0.4 occurrences519–518 Mya — about 0.4 occurrences518–516 Mya — about 0.4 occurrences516–515 Mya — about 0.4 occurrences515–514 Mya — about 0.8 occurrences514–512 Mya — about 0.9 occurrences512–511 Mya — about 0.9 occurrences511–509 Mya — about 3 occurrences509–508 Mya — about 8 occurrences508–506 Mya — about 8 occurrences506–505 Mya — about 6 occurrences505–503 Mya — about 0.4 occurrences503–502 Mya — about 0.3 occurrences502–501 Mya — about 0.3 occurrences501–499 Mya — about 0.3 occurrences499–498 Mya — about 0.3 occurrences498–496 Mya — about 0.1 occurrences516 Mya506.5 Mya539.6 Mya496.2 Mya

32 occurrences of Hamatolenus on record, most of them in the Cambrian. 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

32 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

Jbel Wawrmast — 31.29°N, 4.98°WJbel Wawrmast — 31.39°N, 5.02°WJbel Wawrmast — 31.29°N, 5.50°WValdemiedes — 41.17°N, 1.48°WHells Mouth Grits — 52.83°N, 4.50°W

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

Hamatolenus and its relatives

Cambrian

Where Hamatolenus and its relatives were recorded in the Cambrian.

Found in the same rock

28 taxa

The Paleobiology Database records 6 sites for Hamatolenus, 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

6 references

Each of the 32 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 Hamatolenus

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

3D model

Source
Sketchfab
Licence
Free Standard
Commercial use
cannot be read from the licence given — check the record

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 itEllipsocephalidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hupe 1952