Plaesiomyidae

Plaesiomyidae is a family of extinct lamp shells belonging to the order Orthida.

Plaesiomyidae

Hectonichus · 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
OrthoideaPBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationary, attachedPBDB
Vision
blindPBDB, for Rhynchonellata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 52 million years on record.

The record covers at least 477.1 Mya to 425 Mya. No occurrence read is dated outside 488.9 Mya to 422.7 Mya.

Cambrian — about 0 of 998 occurrencesOrdovician — about 991 of 998 occurrencesOrdovicianSilurian — about 7 of 998 occurrencesSilurian490–488 Mya — about 0.1 occurrences488–486 Mya — about 0.3 occurrences486–483 Mya — about 0.6 occurrences483–481 Mya — about 0.6 occurrences481–479 Mya — about 0.6 occurrences479–476 Mya — about 2 occurrences476–474 Mya — about 3 occurrences474–472 Mya — about 3 occurrences472–470 Mya — about 18 occurrences470–467 Mya — about 24 occurrences467–465 Mya — about 28 occurrences465–463 Mya — about 28 occurrences463–460 Mya — about 29 occurrences460–458 Mya — about 35 occurrences458–456 Mya — about 125 occurrences456–454 Mya — about 127 occurrences454–451 Mya — about 145 occurrences451–449 Mya — about 203 occurrences449–447 Mya — about 125 occurrences447–444 Mya — about 78 occurrences444–442 Mya — about 18 occurrences442–440 Mya — about 0.1 occurrences440–437 Mya — about 0.1 occurrences437–435 Mya — about 0.1 occurrences435–433 Mya — about 0.1 occurrences428–426 Mya — about 0.6 occurrences426–424 Mya — about 3 occurrences424–421 Mya — about 2 occurrences477.1 Mya425 Mya490 Mya421 Mya

998 occurrences of Plaesiomyidae 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

998 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

225 formations

Benbolt — 36.72°N, 82.68°WBenbolt — 37.10°N, 81.34°WBenbolt — 37.22°N, 81.36°WBenbolt — 37.23°N, 81.10°WBenbolt — 37.00°N, 81.00°WBenbolt — 37.23°N, 81.32°WBenbolt — 37.08°N, 81.71°WBenbolt — 37.10°N, 81.56°WBenbolt — 37.11°N, 81.52°WBenbolt — 37.27°N, 81.00°WBenbolt — 37.00°N, 81.67°WLiberty — 39.42°N, 85.01°WLiberty — 38.20°N, 85.57°WLiberty — 39.49°N, 84.95°WLiberty — 39.34°N, 84.95°WLiberty — 39.48°N, 84.06°WLiberty — 39.48°N, 84.05°WLiberty — 38.78°N, 85.37°WLiberty — 39.64°N, 84.94°WLiberty — 39.08°N, 85.25°WLiberty — 39.64°N, 84.96°WVaureal — 49.81°N, 64.43°WVaureal — 49.77°N, 63.64°WVaureal — 49.91°N, 64.24°WVaureal — 49.83°N, 64.28°WVaureal — 49.63°N, 63.20°WVaureal — 49.73°N, 63.83°WVaureal — 49.63°N, 63.78°WVaureal — 49.46°N, 62.35°WVaureal — 49.46°N, 62.31°WVaureal — 49.75°N, 63.14°WVaureal — 49.80°N, 63.89°WVaureal — 49.61°N, 62.60°WVaureal — 49.58°N, 62.51°WVaureal — 49.79°N, 63.24°WVaureal — 49.60°N, 62.69°WVaureal — 49.76°N, 63.06°WCrown Point — 44.87°N, 73.48°WCrown Point — 44.61°N, 73.41°WCrown Point — 44.68°N, 73.45°WCrown Point — 44.58°N, 73.53°WCrown Point — 43.95°N, 73.44°WCopenhagen — 39.98°N, 116.27°WCopenhagen — 39.20°N, 116.25°WCopenhagen — 38.53°N, 116.40°WCopenhagen — 38.82°N, 116.50°WCopenhagen — 39.23°N, 116.41°WDulankara — 46.71°N, 70.06°EDulankara — 44.01°N, 75.16°EDulankara — 43.75°N, 75.25°EDulankara — 43.72°N, 75.31°EVerulam — 44.75°N, 79.33°WVerulam — 44.60°N, 78.97°WVerulam — 44.50°N, 78.58°WVerulam — 44.50°N, 78.67°WVerulam — 44.52°N, 78.97°WVerulam — 44.48°N, 78.95°WVerulam — 44.51°N, 79.19°WCliffield — 37.09°N, 81.34°WCliffield — 37.15°N, 81.49°WCliffield — 37.08°N, 81.71°WCliffield — 37.13°N, 81.41°WCliffield — 37.00°N, 81.00°WCliffield — 37.17°N, 81.48°WScales Shale — 44.98°N, 93.27°WScales Shale — 42.00°N, 90.50°WScales Shale — 43.05°N, 91.83°WScales Shale — 43.08°N, 91.57°WScales Shale — 43.22°N, 91.78°WScales Shale — 43.12°N, 91.53°WScales Shale — 43.37°N, 92.00°WKõrgessaare — 59.13°N, 24.47°EKõrgessaare — 58.98°N, 22.46°EKõrgessaare — 59.17°N, 24.75°EKõrgessaare — 59.03°N, 23.22°EKõrgessaare — 59.02°N, 23.14°EKõrgessaare — 59.02°N, 23.61°EKõrgessaare — 58.95°N, 22.43°EKõrgessaare — 58.98°N, 22.81°EKõrgessaare — 59.27°N, 25.85°EWaynesville — 39.00°N, 84.00°WWaynesville — 39.48°N, 84.06°WWaynesville — 39.43°N, 84.65°WWaynesville — 39.58°N, 84.91°WWaynesville — 39.07°N, 85.07°WWaynesville — 39.07°N, 85.25°WWaynesville — 39.44°N, 85.00°WCaution Creek — 57.97°N, 94.87°WCaution Creek — 58.55°N, 95.13°WCaution Creek — 57.97°N, 94.98°WCaution Creek — 58.51°N, 94.97°WCaution Creek — 55.93°N, 92.23°WCaution Creek — 57.90°N, 94.95°WWhitewater — 39.00°N, 84.00°WWhitewater — 38.00°N, 85.50°WWhitewater — 39.39°N, 83.93°WWhitewater — 37.75°N, 84.30°WWhitewater — 38.86°N, 83.50°WWhitewater — 38.94°N, 83.64°WWhitewater — 39.41°N, 84.09°WWhitewater — 39.54°N, 84.75°WWhitewater — 39.61°N, 84.97°WWhitewater — 39.66°N, 85.00°WWhitewater — 39.68°N, 84.23°WWhitewater — 39.76°N, 84.90°WWelling — 34.51°N, 96.97°WWelling — 34.60°N, 96.59°WWelling — 36.18°N, 94.63°WWhittaker — 62.00°N, 127.00°WWhittaker — 61.52°N, 124.87°WWhittaker — 62.47°N, 124.85°WWhittaker — 63.28°N, 125.35°WWhittaker — 61.48°N, 125.05°WWhittaker — 62.46°N, 124.88°WWhittaker — 63.17°N, 127.97°WWhittaker — 62.70°N, 127.93°WWhittaker — 62.50°N, 125.25°WDunleith — 42.02°N, 93.45°WDunleith — 42.00°N, 90.50°WUst'Stolbovaya — 62.14°N, 91.56°EUst'Stolbovaya — 62.14°N, 91.49°EAntelope Valley — 38.05°N, 116.45°WAntelope Valley — 36.88°N, 116.66°WAntelope Valley — 39.20°N, 116.25°WAntelope Valley — 39.00°N, 116.62°WAntelope Valley — 39.23°N, 116.41°WAntelope Valley — 39.05°N, 116.74°WBarrel Spring — 36.90°N, 118.06°WBarrel Spring — 37.00°N, 118.00°WBarrel Spring — 36.95°N, 118.08°WArnheim — 39.00°N, 84.00°WArnheim — 35.50°N, 86.50°WArnheim — 35.38°N, 88.00°WArnheim — 39.33°N, 84.09°WArnheim — 39.15°N, 84.64°WArnheim — 39.48°N, 84.96°WArnheim — 39.51°N, 84.94°WArnheim — 36.33°N, 86.73°WArnheim — 39.03°N, 83.92°WAdvance — 56.03°N, 123.35°WAdvance — 56.02°N, 123.53°WAdvance — 56.18°N, 123.45°WAdvance — 56.13°N, 123.60°WAdvance — 56.13°N, 123.45°WEllis Bay — 49.72°N, 63.34°WEllis Bay — 49.81°N, 64.01°WEllis Bay — 49.33°N, 61.89°WEllis Bay — 49.63°N, 63.78°WEllis Bay — 49.74°N, 63.88°WEllis Bay — 49.38°N, 62.08°WEllis Bay — 49.45°N, 62.30°WEllis Bay — 49.84°N, 64.45°WEllis Bay — 49.55°N, 62.68°WStony Mountain — 50.09°N, 97.21°WBromide — 34.00°N, 97.00°W

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The named rock units Plaesiomyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 201 further formations hold fewer occurrences each and are not listed. 90 occurrences have no formation on record, which is common for older literature.

Plaesiomyidae and its relatives

Ordovician

Where Plaesiomyidae and its relatives were recorded in the Ordovician.

Found in the same rock

1,851 taxa

The Paleobiology Database records 778 sites for Plaesiomyidae, and this reads 240 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

184 references

Each of the 998 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. 172 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 Plaesiomyidae

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

No 3D scan of Plaesiomyidae 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 itOrthoidea through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Schuchert 1913