Evactinopora

Evactinopora is an extinct genus of Mississippian cystoporate bryozoans of the family Evactinoporidae. It formed free-living colonies that grew into a star-shaped form. It had several distinctive phases of colony growth: larvae would grow attached to hard surfaces before detaching, and the colony would then adapt to living on soft sediment, growing radial rays for stabilization during the juvenile growth stage and vertical vanes containing autozooecia in the adult stage.

Evactinopora

Uncredited · CC BY-SA 3.0 · 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
EvactinoporidaePBDB
Diet
suspension feederPBDB, for Stenolaemata
Life habit
epifaunalPBDB, for Bryozoa
Motility
stationary, attachedPBDB, for Stenolaemata
Vision
blindPBDB, for Stenolaemata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 23 million years on record.

The record covers at least 353.7 Mya to 330.3 Mya. No occurrence read is dated outside 358.86 Mya to 323.4 Mya.

Devonian — about 0 of 18 occurrencesCarboniferous — about 18 of 18 occurrencesCarboniferous360–358 Mya — about 0.1 occurrences358–357 Mya — about 0.2 occurrences357–356 Mya — about 0.2 occurrences356–355 Mya — about 0.2 occurrences355–353 Mya — about 0.2 occurrences352–351 Mya — about 0.4 occurrences351–350 Mya — about 0.5 occurrences350–349 Mya — about 0.5 occurrences349–347 Mya — about 0.5 occurrences347–346 Mya — about 0.7 occurrences346–345 Mya — about 0.9 occurrences345–344 Mya — about 0.9 occurrences344–342 Mya — about 0.9 occurrences342–341 Mya — about 0.9 occurrences341–340 Mya — about 0.9 occurrences340–339 Mya — about 0.9 occurrences339–337 Mya — about 0.9 occurrences337–336 Mya — about 0.9 occurrences336–335 Mya — about 0.7 occurrences335–334 Mya — about 0.4 occurrences334–333 Mya — about 0.4 occurrences333–331 Mya — about 0.4 occurrences331–330 Mya — about 0.5 occurrences330–329 Mya — about 0.9 occurrences329–328 Mya — about 0.9 occurrences328–326 Mya — about 0.9 occurrences326–325 Mya — about 0.9 occurrences325–324 Mya — about 0.9 occurrences324–323 Mya — about 0.4 occurrences353.7 Mya330.3 Mya359.6 Mya322.7 Mya

18 occurrences of Evactinopora on record, most of them in the Carboniferous. 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

18 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

6 formations

Branch Creek — 25.03°S, 151.32°EBranch Creek — 25.09°S, 151.34°EBranch Creek — 25.07°S, 151.36°EBaywulla — 25.05°S, 151.33°EMount Head — 50.48°N, 114.71°WMount Head — 50.62°N, 114.98°WFern Glen — 38.37°N, 90.38°WBoone — 36.10°N, 94.00°WBoone — 36.00°N, 93.00°WRangari limestone — 30.76°S, 150.36°E

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The named rock units Evactinopora has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Evactinopora and its relatives

Carboniferous

Where Evactinopora and its relatives were recorded in the Carboniferous.

Found in the same rock

123 taxa

The Paleobiology Database records 17 sites for Evactinopora, 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

6 references

Each of the 18 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. 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 Evactinopora

Credit
nobody named on the record
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Evactinopora 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 itEvactinoporidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Meek and Worthen 1865