Barbclabornia

Barbclabornia is an extinct genus of xenacanth from the Early Permian and possibly upper Pennsylvanian of North America. The genus contains a single described species: B. luedersensis. It has been found in several places within Asselian and Atinskian formations, including the Clear Fork, Albany, Wichita, and Dunkard Groups. There are possible examples from the Gzhelian-aged Admire, Monongahela, and Conemaugh groups.

Barbclabornia

Mason Hintermeister · 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
BransonelliformesPBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 15 million years on record.

The record covers at least 298.9 Mya to 283.3 Mya. No occurrence read is dated outside 303.7 Mya to 251.902 Mya.

Carboniferous — about 8 of 73 occurrencesCarboniferousPermian — about 65 of 73 occurrencesPermianEarly Triassic — about 0 of 73 occurrences305–303 Mya — about 1 occurrence303–301 Mya — about 3 occurrences301–299 Mya — about 3 occurrences299–298 Mya — about 1 occurrence298–296 Mya — about 0.8 occurrences296–294 Mya — about 0.8 occurrences294–292 Mya — about 1 occurrence292–290 Mya — about 1 occurrence290–289 Mya — about 9 occurrences289–287 Mya — about 11 occurrences287–285 Mya — about 11 occurrences285–283 Mya — about 10 occurrences283–281 Mya — about 3 occurrences281–280 Mya — about 3 occurrences280–278 Mya — about 3 occurrences278–276 Mya — about 3 occurrences276–274 Mya — about 3 occurrences274–272 Mya — about 0.2 occurrences272–271 Mya — about 0.2 occurrences271–269 Mya — about 0.2 occurrences269–267 Mya — about 0.2 occurrences267–265 Mya — about 0.2 occurrences265–263 Mya — about 0.2 occurrences263–262 Mya — about 0.2 occurrences262–260 Mya — about 0.2 occurrences260–258 Mya — about 0.2 occurrences258–256 Mya — about 0.2 occurrences256–254 Mya — about 0.2 occurrences254–253 Mya — about 0.2 occurrences253–251 Mya — about 0.1 occurrences298.9 Mya283.3 Mya305 Mya251 Mya

73 occurrences of Barbclabornia on record, most of them in the Permian. 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

73 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

12 formations

Clyde — 33.98°N, 99.02°WClyde — 33.92°N, 98.92°WClyde — 32.99°N, 99.70°WClyde — 33.77°N, 99.11°WClyde — 33.78°N, 99.02°WClyde — 33.71°N, 99.27°WBelle Plains — 33.40°N, 99.39°WBelle Plains — 33.71°N, 99.27°WLueders — 33.75°N, 99.15°WLueders — 33.75°N, 99.12°WLueders — 33.73°N, 99.18°WLueders — 33.80°N, 98.83°WLueders — 33.75°N, 99.22°WLueders — 33.98°N, 99.02°WTowle Shale — 40.48°N, 95.73°WGarber Sandstone — 34.53°N, 98.89°WGarber Sandstone — 34.58°N, 98.85°WClear Fork — 33.82°N, 99.21°WWashington — 39.77°N, 80.00°WWashington — 39.86°N, 80.82°WPittsburgh — 40.44°N, 79.97°WConemaugh — 40.43°N, 80.02°WGreene — 39.64°N, 80.64°WAdmiral — 33.67°N, 98.83°WWaynesburg — 40.16°N, 80.27°W

Loading coastlines…

The named rock units Barbclabornia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Barbclabornia and its relatives

Permian

Where Barbclabornia and its relatives were recorded in the Permian.

Found in the same rock

34 taxa

The Paleobiology Database records 68 sites for Barbclabornia, 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

4 references

Each of the 73 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 Barbclabornia

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

No 3D scan of Barbclabornia 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 itBransonelliformes through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Johnson 2003