Chordata

A chordate is a bilaterian animal belonging to the phylum Chordata. All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa: a notochord, a hollow dorsal nerve cord, an endostyle or thyroid, pharyngeal slits, and a post-anal tail.

Chordata

User:Biopics User:Nhobgood User:Albert kok User:Fir0002 · 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
DeuterostomiaPBDB
Motility
actively mobilePBDB

Time the record covers

At least 515 million years on record.

The record covers at least 516 Mya to 11.7 ka. No occurrence read is dated outside 525.5 Mya to 0 Mya.

Cambrian — about 57 of 12000 occurrencesCambrianOrdovician — about 745 of 12000 occurrencesSilurian — about 649 of 12000 occurrencesDevonian — about 1780 of 12000 occurrencesDevonianCarboniferous — about 542 of 12000 occurrencesCarboniferousPermian — about 69 of 12000 occurrencesPermianEarly Triassic — about 1 of 12000 occurrencesMiddle Triassic — about 5 of 12000 occurrencesLate Triassic — about 82 of 12000 occurrencesEarly Jurassic — about 13 of 12000 occurrencesMiddle Jurassic — about 0 of 12000 occurrencesLate Jurassic — about 23 of 12000 occurrencesEarly Cretaceous — about 123 of 12000 occurrencesLate Cretaceous — about 1765 of 12000 occurrencesPaleocene — about 4175 of 12000 occurrencesEocene — about 1356 of 12000 occurrencesOligocene — about 39 of 12000 occurrencesMiocene — about 365 of 12000 occurrencesPliocene — about 87 of 12000 occurrencesPleistocene — about 104 of 12000 occurrences536–518 Mya — about 3 occurrences518–500 Mya — about 5 occurrences500–482 Mya — about 112 occurrences482–465 Mya — about 401 occurrences465–447 Mya — about 260 occurrences447–429 Mya — about 336 occurrences429–411 Mya — about 692 occurrences411–393 Mya — about 89 occurrences393–375 Mya — about 528 occurrences375–357 Mya — about 833 occurrences357–339 Mya — about 284 occurrences339–322 Mya — about 135 occurrences322–304 Mya — about 81 occurrences304–286 Mya — about 35 occurrences286–268 Mya — about 25 occurrences268–250 Mya — about 22 occurrences250–232 Mya — about 34 occurrences232–214 Mya — about 42 occurrences214–197 Mya — about 17 occurrences197–179 Mya — about 8 occurrences161–143 Mya — about 24 occurrences143–125 Mya — about 42 occurrences125–107 Mya — about 64 occurrences107–89 Mya — about 199 occurrences89–71 Mya — about 587 occurrences71–54 Mya — about 5676 occurrences54–36 Mya — about 810 occurrences36–18 Mya — about 102 occurrences18–0 Mya — about 554 occurrences516 Mya11.7 ka536 Mya0 Mya

12,000+ occurrences of Chordata on record. 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

12,000 occurrences read

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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.

Found in

at least 475 formations

Fort Union — 47.60°N, 107.00°WFort Union — 47.10°N, 104.80°WFort Union — 47.80°N, 106.10°WFort Union — 43.85°N, 108.35°WFort Union — 43.70°N, 108.70°WFort Union — 44.30°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 45.80°N, 104.40°WFort Union — 41.70°N, 109.00°WFort Union — 41.30°N, 107.74°WFort Union — 44.50°N, 108.00°WFort Union — 45.80°N, 109.80°WFort Union — 46.70°N, 101.80°WFort Union — 48.50°N, 101.90°WFort Union — 46.90°N, 101.50°WFort Union — 46.59°N, 101.74°WFort Union — 46.90°N, 103.90°WFort Union — 45.80°N, 110.50°WFort Union — 44.72°N, 108.38°WFort Union — 44.68°N, 108.32°WFort Union — 45.20°N, 109.00°WFort Union — 44.89°N, 108.93°WFort Union — 43.20°N, 107.10°WFort Union — 45.10°N, 106.90°WFort Union — 45.40°N, 105.60°WFort Union — 43.45°N, 109.16°WFort Union — 41.92°N, 108.56°WFort Union — 44.72°N, 108.62°WFort Union — 43.20°N, 108.20°WDeBeque — 40.00°N, 107.90°WDeBeque — 39.20°N, 108.20°WDeBeque — 39.27°N, 108.18°WDeBeque — 39.70°N, 107.60°WDeBeque — 38.70°N, 107.60°WHell Creek — 47.64°N, 106.57°WHell Creek — 47.70°N, 106.23°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.63°N, 106.20°WHell Creek — 47.55°N, 107.12°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.60°N, 107.00°WHell Creek — 47.65°N, 106.65°WHell Creek — 47.52°N, 106.98°WHell Creek — 46.30°N, 104.50°WHell Creek — 47.57°N, 107.10°WHell Creek — 45.50°N, 103.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.60°N, 106.38°WHell Creek — 47.58°N, 106.30°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.87°N, 106.18°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.53°N, 106.92°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.10°N, 104.80°WHell Creek — 47.70°N, 106.55°WHell Creek — 47.73°N, 106.50°WHell Creek — 45.40°N, 105.60°WHell Creek — 46.10°N, 103.30°WHell Creek — 47.60°N, 107.23°WHell Creek — 47.68°N, 106.43°WHell Creek — 46.90°N, 101.50°WHell Creek — 47.80°N, 106.21°WWuzhishan — 24.45°N, 108.30°ENacimiento — 36.30°N, 108.20°WNacimiento — 36.31°N, 108.00°WNacimiento — 35.70°N, 107.00°WNacimiento — 36.57°N, 107.97°WNacimiento — 36.18°N, 107.58°WNacimiento — 36.27°N, 107.76°WPaskapoo — 51.00°N, 114.10°WPaskapoo — 51.90°N, 113.30°WPaskapoo — 53.23°N, 114.70°WPaskapoo — 52.40°N, 113.80°WPaskapoo — 52.30°N, 113.80°WPaskapoo — 52.20°N, 113.70°WPaskapoo — 51.10°N, 114.50°WPaskapoo — 51.18°N, 114.43°WPaskapoo — 52.60°N, 114.10°WPaskapoo — 52.00°N, 114.30°WPaskapoo — 52.20°N, 113.60°WPaskapoo — 51.50°N, 112.30°WPaskapoo — 52.40°N, 116.10°WPaskapoo — 54.80°N, 115.46°WPaskapoo — 54.80°N, 115.80°WPaskapoo — 51.20°N, 112.50°WLance — 43.18°N, 104.53°WLance — 43.00°N, 104.50°WLance — 43.10°N, 104.60°WLance — 41.57°N, 108.67°WLance — 43.15°N, 104.57°WLance — 43.25°N, 104.65°WLance — 44.94°N, 108.85°WLance — 43.30°N, 104.37°WLance — 43.13°N, 104.49°WLance — 43.25°N, 104.52°WLance — 43.80°N, 104.62°WLaoyefen — 24.45°N, 108.30°EWasatch — 41.80°N, 110.70°WWasatch — 41.27°N, 110.33°WWasatch — 43.25°N, 110.42°WWasatch — 42.70°N, 110.10°WWasatch — 40.60°N, 108.10°WWasatch — 41.70°N, 109.00°WWasatch — 41.80°N, 107.00°WDenay Limestone — 39.22°N, 116.22°WDawan — 33.00°N, 111.00°EDawan — 32.00°N, 119.00°ESan Jose — 36.50°N, 107.00°WSan Jose — 35.70°N, 107.00°WBlack Rock Limestone — 51.57°N, 4.33°WFerris — 41.94°N, 106.88°WFerris — 41.80°N, 107.00°WFerris — 41.96°N, 106.89°WFerris — 41.94°N, 106.85°WNorth Horn — 39.27°N, 111.25°WNorth Horn — 39.00°N, 111.00°WNorth Horn — 39.17°N, 111.27°WNorth Horn — 39.10°N, 111.80°WLilley — 38.94°N, 83.46°WLilley — 39.07°N, 83.39°WLilley — 39.19°N, 83.62°WLilley — 38.95°N, 83.42°WRavenscrag — 49.50°N, 109.20°WRavenscrag — 49.60°N, 108.70°WRavenscrag — 49.70°N, 110.10°WRavenscrag — 49.06°N, 102.75°WXiangtian — 24.45°N, 108.30°EJudith River — 47.70°N, 110.70°WJudith River — 46.42°N, 109.27°WJudith River — 48.92°N, 110.58°WJudith River — 46.46°N, 109.41°WJudith River — 48.57°N, 109.68°WJudith River — 47.81°N, 109.59°WJudith River — 48.98°N, 110.52°WJudith River — 46.10°N, 109.10°WJudith River — 46.47°N, 109.30°WJudith River — 48.93°N, 110.65°WCedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.66°N, 111.24°WCedar Mountain — 38.94°N, 111.08°WCedar Mountain — 38.80°N, 111.17°WKrtiny Limestone — 49.23°N, 16.76°ELochkov — 49.50°N, 14.33°ELochkov — 49.93°N, 14.18°ELochkov — 49.93°N, 14.13°EWangyou — 24.45°N, 108.30°EPrairie Bluff — 34.25°N, 88.97°WPrairie Bluff — 33.90°N, 88.98°WPrairie Bluff — 33.72°N, 88.92°WPrairie Bluff — 33.46°N, 88.79°WPrairie Bluff — 33.38°N, 88.74°WPrairie Bluff — 33.07°N, 88.61°WPrairie Bluff — 33.05°N, 88.56°WPrairie Bluff — 32.90°N, 88.46°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 — 32.23°N, 87.50°WPrairie Bluff — 32.14°N, 87.42°WPrairie Bluff — 32.07°N, 87.33°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 — 31.98°N, 86.00°WPrairie Bluff — 31.92°N, 86.17°WPrairie Bluff — 31.98°N, 85.92°W

Loading coastlines…

The named rock units Chordata has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 451 further formations hold fewer occurrences each and are not listed. 1,766 occurrences have no formation on record, which is common for older literature.

Found in the same rock

1,608 taxa

The Paleobiology Database records at least 713 sites for Chordata, 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

at least 848 references

Each of the 12,000 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. That read hit its cap, so each count is a floor. 836 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 content2

Picture of Chordata

Credit
User:Biopics User:Nhobgood User:Albert kok User:Fir0002
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

Smithsonian Open Access and MorphoSource were 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 itDeuterostomia through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Haeckel 1874)