Annelida

Annelids, also known as segmented worms, are animals that comprise the phylum Annelida. The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zones and hydrothermal vents, others in fresh water, and yet others in moist terrestrial environments.

Annelida

OJJ · CC0 · 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
Also called
wormPBDB
Sits inside
LophotrochozoaPBDB

Time the record covers

At least 538 million years on record.

The record covers at least 538.8 Mya to 11.7 ka. No occurrence read is dated outside 635 Mya to 0 Mya.

Cambrian — about 92 of 4015 occurrencesOrdovician — about 223 of 4015 occurrencesSilurian — about 375 of 4015 occurrencesDevonian — about 142 of 4015 occurrencesDevonianCarboniferous — about 182 of 4015 occurrencesCarboniferousPermian — about 81 of 4015 occurrencesEarly Triassic — about 16 of 4015 occurrencesMiddle Triassic — about 77 of 4015 occurrencesLate Triassic — about 107 of 4015 occurrencesEarly Jurassic — about 176 of 4015 occurrencesMiddle Jurassic — about 187 of 4015 occurrencesLate Jurassic — about 440 of 4015 occurrencesEarly Cretaceous — about 334 of 4015 occurrencesLate Cretaceous — about 832 of 4015 occurrencesPaleocene — about 106 of 4015 occurrencesEocene — about 164 of 4015 occurrencesOligocene — about 43 of 4015 occurrencesMiocene — about 220 of 4015 occurrencesPliocene — about 29 of 4015 occurrencesPleistocene — about 162 of 4015 occurrences648–626 Mya — about 0.6 occurrences626–605 Mya — about 1 occurrence605–583 Mya — about 1 occurrence583–561 Mya — about 1 occurrence561–540 Mya — about 1 occurrence540–518 Mya — about 39 occurrences518–497 Mya — about 53 occurrences497–475 Mya — about 11 occurrences475–453 Mya — about 38 occurrences453–432 Mya — about 242 occurrences432–410 Mya — about 321 occurrences410–389 Mya — about 39 occurrences389–367 Mya — about 69 occurrences367–345 Mya — about 39 occurrences345–324 Mya — about 78 occurrences324–302 Mya — about 45 occurrences302–281 Mya — about 63 occurrences281–259 Mya — about 41 occurrences259–237 Mya — about 108 occurrences237–216 Mya — about 69 occurrences216–194 Mya — about 75 occurrences194–173 Mya — about 146 occurrences173–151 Mya — about 476 occurrences151–130 Mya — about 231 occurrences130–108 Mya — about 202 occurrences108–86 Mya — about 154 occurrences86–65 Mya — about 741 occurrences65–43 Mya — about 168 occurrences43–22 Mya — about 151 occurrences22–0 Mya — about 408 occurrences538.8 Mya11.7 ka648 Mya0 Mya

4,015 occurrences of Annelida on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group. 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

4,015 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

774 formations

Kopanina — 49.94°N, 14.05°EKopanina — 49.96°N, 14.17°EPrairie Bluff — 34.51°N, 88.92°WPrairie Bluff — 34.25°N, 88.97°WPrairie Bluff — 33.93°N, 88.98°WPrairie Bluff — 33.79°N, 88.97°WPrairie Bluff — 33.72°N, 88.92°WPrairie Bluff — 33.79°N, 88.91°WPrairie Bluff — 33.50°N, 88.81°WPrairie Bluff — 33.38°N, 88.74°WPrairie Bluff — 32.90°N, 88.46°WPrairie Bluff — 34.48°N, 88.98°WPrairie Bluff — 33.03°N, 88.56°WPrairie Bluff — 32.73°N, 88.30°WPrairie Bluff — 32.74°N, 88.36°WPrairie Bluff — 32.70°N, 88.17°WPrairie Bluff — 32.63°N, 88.22°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.39°N, 87.92°WPrairie Bluff — 32.31°N, 87.80°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.14°N, 87.42°WPrairie Bluff — 32.07°N, 87.33°WPrairie Bluff — 32.04°N, 87.26°WPrairie Bluff — 32.08°N, 87.03°WPrairie Bluff — 32.05°N, 86.99°WPrairie Bluff — 32.05°N, 86.81°WPrairie Bluff — 32.05°N, 86.81°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 31.98°N, 85.92°WProvidence — 31.91°N, 86.17°WProvidence — 31.87°N, 86.08°WProvidence — 31.97°N, 86.00°WProvidence — 31.86°N, 85.95°WProvidence — 31.92°N, 85.82°WProvidence — 31.89°N, 85.70°WProvidence — 31.95°N, 85.68°WProvidence — 31.92°N, 85.35°WProvidence — 31.84°N, 85.22°WProvidence — 31.78°N, 85.14°WProvidence — 31.75°N, 85.12°WProvidence — 31.80°N, 85.00°WProvidence — 31.96°N, 85.45°WProvidence — 31.89°N, 85.21°WChari — 23.50°N, 70.50°ECorsicana Marl — 33.53°N, 94.51°WCorsicana Marl — 33.51°N, 94.67°WCorsicana Marl — 33.10°N, 95.99°WCorsicana Marl — 32.92°N, 96.11°WCorsicana Marl — 32.86°N, 96.21°WCorsicana Marl — 31.82°N, 96.54°WCorsicana Marl — 32.04°N, 96.50°WCorsicana Marl — 31.74°N, 96.61°WCorsicana Marl — 31.40°N, 96.73°WCorsicana Marl — 31.30°N, 96.75°WCorsicana Marl — 30.94°N, 96.95°WCorsicana Marl — 30.38°N, 97.49°WCorsicana Marl — 30.37°N, 97.45°WCorsicana Marl — 30.28°N, 97.54°WCorsicana Marl — 30.23°N, 97.52°WCorsicana Marl — 30.20°N, 97.58°WCorsicana Marl — 30.15°N, 97.67°WCorsicana Marl — 29.83°N, 97.84°WCorsicana Marl — 29.80°N, 97.89°WCorsicana Marl — 29.72°N, 97.90°WCorsicana Marl — 29.60°N, 98.03°WCorsicana Marl — 29.63°N, 98.54°WCorsicana Marl — 29.49°N, 98.19°WCorsicana Marl — 29.43°N, 98.43°WCorsicana Marl — 29.44°N, 98.56°WCorsicana Marl — 29.65°N, 98.38°WCorsicana Marl — 29.39°N, 98.71°WCorsicana Marl — 29.37°N, 98.78°WCorsicana Marl — 29.48°N, 98.81°WCorsicana Marl — 29.41°N, 98.90°WCorsicana Marl — 29.35°N, 98.88°WCorsicana Marl — 29.42°N, 98.49°WKap Leslie — 70.48°N, 21.97°WQingyan — 26.33°N, 106.68°EQom Formation — 33.51°N, 51.99°EQom Formation — 34.51°N, 50.95°EPeedee — 34.04°N, 79.80°WPeedee — 33.91°N, 79.45°WPeedee — 33.83°N, 79.25°WPeedee — 34.27°N, 77.95°WPeedee — 35.77°N, 78.64°WPeedee — 34.48°N, 78.41°WChiwapa — 34.63°N, 88.94°WChiwapa — 34.63°N, 88.84°WChiwapa — 34.46°N, 88.90°WChiwapa — 34.38°N, 88.98°WChiwapa — 34.36°N, 88.93°WChiwapa — 34.21°N, 88.98°WChiwapa — 34.04°N, 88.93°WArgiles a Lopha gregarea — 49.30°N, 0.07°WBurgess Shale — 51.44°N, 116.47°WBurgess Shale — 51.38°N, 116.43°WSevern — 38.80°N, 77.00°WSevern — 38.89°N, 76.85°WSevern — 38.92°N, 76.85°WSevern — 39.33°N, 76.03°WOverton — 52.48°N, 2.63°WGraham — 33.24°N, 98.12°WBangor Limestone — 34.52°N, 87.58°WBangor Limestone — 34.59°N, 87.63°WJagüel — 38.13°S, 68.41°WAgrio — 38.73°S, 69.92°WAgrio — 38.05°S, 70.03°WAgrio — 37.27°S, 70.48°WAgrio — 38.37°S, 70.02°WAgrio — 37.67°S, 70.03°WAgrio — 39.35°S, 70.13°WAgrio — 37.62°S, 70.04°WAgrio — 37.65°S, 70.22°WAgrio — 39.44°S, 70.17°WLopez de Bertodano — 64.25°S, 56.75°WLopez de Bertodano — 64.17°S, 57.75°WBlack Creek — 35.77°N, 78.64°WBlack Creek — 34.48°N, 78.41°WBlack Creek — 34.68°N, 78.23°WBlack Creek — 34.58°N, 78.27°WBlack Creek — 35.23°N, 77.79°WBlack Creek — 35.22°N, 77.68°WBlack Creek — 35.46°N, 77.68°WBlack Creek — 35.67°N, 77.47°WWaterways — 58.00°N, 112.72°WHemse Beds — 57.28°N, 18.32°EHemse Beds — 57.37°N, 18.69°EHemse Beds — 57.53°N, 18.43°EOread Limestone — 36.92°N, 96.28°WOread Limestone — 36.98°N, 96.29°WOread Limestone — 37.05°N, 96.41°WOread Limestone — 37.24°N, 96.07°WOread Limestone — 37.56°N, 95.98°WOread Limestone — 37.74°N, 96.04°WOread Limestone — 37.76°N, 95.99°WOread Limestone — 38.23°N, 95.74°WOread Limestone — 38.39°N, 95.62°WOread Limestone — 38.84°N, 95.39°WOread Limestone — 39.01°N, 95.30°WOread Limestone — 38.92°N, 95.25°WOread Limestone — 39.11°N, 95.11°WOread Limestone — 39.33°N, 94.93°WOread Limestone — 39.59°N, 95.00°WOread Limestone — 39.81°N, 94.87°WOread Limestone — 40.99°N, 96.19°WOread Limestone — 41.01°N, 95.88°WOread Limestone — 41.35°N, 94.30°WEscondido — 29.59°N, 98.07°WEscondido — 29.27°N, 98.90°WEscondido — 29.39°N, 99.02°WEscondido — 29.27°N, 99.05°WEscondido — 29.06°N, 100.06°WEscondido — 28.87°N, 100.16°WEscondido — 28.72°N, 100.48°WEscondido — 28.53°N, 100.32°WEscondido — 28.25°N, 100.27°W

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The named rock units Annelida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 750 further formations hold fewer occurrences each and are not listed. 878 occurrences have no formation on record, which is common for older literature.

Annelida and its relatives

Late Cretaceous

Where Annelida and its relatives were recorded in the Late Cretaceous.

Found in the same rock

2,399 taxa

The Paleobiology Database records at least 1,398 sites for Annelida, 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

926 references

Each of the 4,015 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. 914 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 Annelida

Credit
OJJ
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itLophotrochozoa through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Lamarck 1809)