Orthodesma

Orthodesma

via iDigBio · 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
ModiomorphidaePBDB
Diet
suspension feederPBDB, for Modiomorphidae
Life habit
epifaunalPBDB, for Modiomorphidae
Motility
stationary, attachedPBDB, for Modiomorphidae
Vision
blindPBDB, for Bivalvia
Environment
marinePBDB, for Modiomorphidae

Time the record covers

At least 32 million years on record.

The record covers at least 455 Mya to 422.7 Mya. No occurrence read is dated outside 471.3 Mya to 419.62 Mya.

Ordovician — about 64 of 74 occurrencesOrdovicianSilurian — about 10 of 74 occurrencesSilurianDevonian — about 0 of 74 occurrences472–471 Mya — about 0.1 occurrences471–469 Mya — about 0.2 occurrences469–467 Mya — about 0.2 occurrences467–465 Mya — about 0.2 occurrences465–463 Mya — about 0.2 occurrences463–462 Mya — about 0.2 occurrences462–460 Mya — about 0.2 occurrences460–458 Mya — about 0.3 occurrences458–456 Mya — about 4 occurrences456–454 Mya — about 6 occurrences454–453 Mya — about 6 occurrences453–451 Mya — about 8 occurrences451–449 Mya — about 22 occurrences449–447 Mya — about 7 occurrences447–445 Mya — about 7 occurrences445–444 Mya — about 2 occurrences444–442 Mya — about 1 occurrence442–440 Mya — about 1 occurrence440–438 Mya — about 2 occurrences438–437 Mya — about 1 occurrence437–435 Mya — about 1 occurrence435–433 Mya — about 1 occurrence433–431 Mya — about 0.0 occurrences428–426 Mya — about 0.2 occurrences426–424 Mya — about 0.4 occurrences424–422 Mya — about 0.5 occurrences422–420 Mya — about 0.6 occurrences420–419 Mya — about 0.2 occurrences455 Mya422.7 Mya472 Mya419 Mya

74 occurrences of Orthodesma 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

74 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

39 formations

Dunleith — 42.00°N, 90.50°WSt. Peter Sandstone — 44.98°N, 93.26°WSt. Peter Sandstone — 44.97°N, 93.07°WSt. Peter Sandstone — 44.90°N, 93.03°WSt. Peter Sandstone — 46.00°N, 94.00°WSt. Peter Sandstone — 42.00°N, 90.50°WMaquoketa — 42.01°N, 91.64°WMaquoketa — 42.50°N, 91.25°WMaquoketa — 46.00°N, 94.00°WWaynesville — 39.45°N, 83.83°WWaynesville — 39.00°N, 84.00°WWhitewater — 39.83°N, 84.89°WWhitewater — 39.42°N, 85.01°WWhitewater — 39.00°N, 84.00°WKope — 39.00°N, 84.00°WKope — 39.04°N, 84.53°WSodus — 43.24°N, 77.02°WSodus — 43.25°N, 77.02°WSodus — 43.15°N, 75.56°WMartinsburg — 38.93°N, 78.20°WMartinsburg — 38.51°N, 78.63°WDecorah Shale — 44.50°N, 93.00°WDecorah Shale — 46.00°N, 94.00°WProsser Limestone — 42.50°N, 91.00°WProsser Limestone — 46.00°N, 94.00°WIon — 42.00°N, 90.50°WScales Shale — 42.00°N, 90.50°WWestfield Sandstone — 42.62°S, 146.37°EStonington — 45.67°N, 86.97°WLorraine — 44.59°N, 80.56°WLorraine — 43.70°N, 79.51°WScales — 43.52°N, 91.77°WFairview — 39.00°N, 84.00°WBellevue — 39.00°N, 84.00°WCorryville — 39.00°N, 84.00°WMount Auburn — 39.00°N, 84.00°WElkhorn — 39.00°N, 84.00°WSodus Shale — 43.21°N, 75.46°WWestfield Beds — 42.00°S, 146.00°EArnheim — 39.00°N, 84.00°W

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The named rock units Orthodesma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 further formations hold fewer occurrences each and are not listed. 4 occurrences have no formation on record, which is common for older literature.

Orthodesma and its relatives

Ordovician

Where Orthodesma and its relatives were recorded in the Ordovician.

Found in the same rock

782 taxa

The Paleobiology Database records 73 sites for Orthodesma, 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

24 references

Each of the 74 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. 12 further references are not listed. 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 Orthodesma

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Orthodesma 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.

This is what the site found, which is not the same as what exists.

Keep going

Everything alive alongside itModiomorphidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hall and Whitfield 1875