Hexagonaria

Hexagonaria is a genus of colonial rugose coral. Fossils are found in rock formations dating to the Devonian period, about 350 million years ago. Specimens of Hexagonaria can be found in most of the rock formations of the Traverse Group in Michigan. Fossils of this genus form Petoskey stones, the state stone of Michigan. They can be seen and found in most Midwestern U.S. states.

Hexagonaria

Wilson44691 · 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
Sits inside
HexagonariinaePBDB
Diet
suspension feederPBDB, for Rugosa
Life habit
epifaunalPBDB, for Rugosa
Motility
stationary, attachedPBDB, for Rugosa
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Rugosa

Time the record covers

At least 44 million years on record.

The record covers at least 419.62 Mya to 375.2 Mya. No occurrence read is dated outside 443.1 Mya to 358.86 Mya.

Ordovician — about 0 of 215 occurrencesSilurian — about 3 of 215 occurrencesSilurianDevonian — about 212 of 215 occurrencesDevonianCarboniferous — about 0 of 215 occurrences445–442 Mya — about 0.2 occurrences442–439 Mya — about 0.4 occurrences439–436 Mya — about 0.4 occurrences436–433 Mya — about 0.4 occurrences433–430 Mya — about 0.4 occurrences430–427 Mya — about 0.4 occurrences427–424 Mya — about 0.4 occurrences424–421 Mya — about 0.4 occurrences421–419 Mya — about 0.5 occurrences419–416 Mya — about 0.6 occurrences416–413 Mya — about 0.7 occurrences413–410 Mya — about 2 occurrences410–407 Mya — about 3 occurrences407–404 Mya — about 3 occurrences404–401 Mya — about 3 occurrences401–398 Mya — about 3 occurrences398–395 Mya — about 3 occurrences395–392 Mya — about 5 occurrences392–389 Mya — about 9 occurrences389–386 Mya — about 24 occurrences386–383 Mya — about 35 occurrences383–381 Mya — about 38 occurrences381–378 Mya — about 26 occurrences378–375 Mya — about 27 occurrences375–372 Mya — about 27 occurrences372–369 Mya — about 0.7 occurrences369–366 Mya — about 0.7 occurrences366–363 Mya — about 0.7 occurrences363–360 Mya — about 0.7 occurrences360–357 Mya — about 0.3 occurrences419.62 Mya375.2 Mya445 Mya357 Mya

215 occurrences of Hexagonaria on record, most of them in the Devonian. 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

215 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

72 formations

Silica — 41.72°N, 83.72°WKowala — 50.80°N, 20.57°EKowala — 50.83°N, 20.67°EKowala — 50.73°N, 20.45°EKowala — 50.82°N, 20.42°EKowala — 50.63°N, 21.37°EKowala — 50.80°N, 20.47°EMartin — 34.75°N, 112.11°WMartin — 34.75°N, 112.13°WMartin — 34.87°N, 112.09°WMartin — 34.45°N, 111.84°WMartin — 35.00°N, 112.50°WLazhuglung — 34.77°N, 81.31°EJeffersonville Limestone — 38.50°N, 85.75°WJeffersonville Limestone — 38.25°N, 85.77°WFerques — 50.83°N, 1.77°EGlubokaya — 55.52°N, 85.70°EGlubokaya — 55.17°N, 84.57°EDewal — 33.75°N, 68.03°EDewal — 33.62°N, 67.90°EBadragha — 34.37°N, 68.33°EBadragha — 34.35°N, 68.38°EBadragha — 34.23°N, 68.00°EGrands Breux — 50.19°N, 5.24°EGuanwushan — 32.33°N, 104.51°EDonggangling — 24.98°N, 109.98°EDonggangling — 24.10°N, 109.98°EDonggangling — 24.45°N, 108.30°ECoopers Creek Limestone — 38.15°S, 146.47°ELankey Limestone — 42.12°S, 171.87°EQiziqiao — 27.83°N, 111.58°ETwin Falls — 61.00°N, 117.00°WKakisa — 61.00°N, 120.00°WKakisa — 56.28°N, 123.39°WLime Creek — 43.00°N, 93.00°WCawak — 33.98°N, 68.05°EBeul — 51.39°N, 7.87°EVaughn Gulch — 36.82°N, 118.08°WDawson Bay — 51.65°N, 99.81°WDawson Bay — 52.88°N, 101.05°WPortilla — 42.83°N, 5.65°WPortilla — 42.82°N, 5.22°ERedknife — 62.00°N, 121.00°W

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The named rock units Hexagonaria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 48 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.

Hexagonaria and its relatives

Devonian

Where Hexagonaria and its relatives were recorded in the Devonian.

Found in the same rock

697 taxa

The Paleobiology Database records 115 sites for Hexagonaria, 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

66 references

Each of the 215 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. 54 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 Hexagonaria

Credit
Wilson44691
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itHexagonariinae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gürich 1896