Amphissites

Amphissites is an extinct genus of ostracod belonging to the suborder Beyrichicopina and family Amphissitinae. Species belonging to the genus lived from the Devonian to the Permian in Europe, North America, Australia, and east Asia. The genus were likely deposit-feeders, and may have survived briefly into the Triassic.

Amphissites

Carolyn Bartlett · Public Domain · 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
AmphissitidaePBDB
Diet
suspension feederPBDB, for Palaeocopida
Life habit
epifaunalPBDB, for Palaeocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 139 million years on record.

The record covers at least 393.47 Mya to 254.14 Mya. No occurrence read is dated outside 399.5 Mya to 251.902 Mya.

Devonian — about 33 of 167 occurrencesDevonianCarboniferous — about 85 of 167 occurrencesCarboniferousPermian — about 49 of 167 occurrencesPermianEarly Triassic — about 0 of 167 occurrences402–397 Mya — about 4 occurrences397–392 Mya — about 8 occurrences392–387 Mya — about 2 occurrences387–382 Mya — about 2 occurrences382–377 Mya — about 0.6 occurrences377–372 Mya — about 9 occurrences372–367 Mya — about 2 occurrences367–362 Mya — about 3 occurrences362–356 Mya — about 3 occurrences356–351 Mya — about 3 occurrences351–346 Mya — about 2 occurrences346–341 Mya — about 3 occurrences341–336 Mya — about 5 occurrences336–331 Mya — about 1 occurrence331–326 Mya — about 1 occurrence326–321 Mya — about 9 occurrences321–315 Mya — about 16 occurrences315–310 Mya — about 16 occurrences310–305 Mya — about 19 occurrences305–300 Mya — about 6 occurrences300–295 Mya — about 3 occurrences295–290 Mya — about 12 occurrences290–285 Mya — about 8 occurrences285–280 Mya — about 5 occurrences280–275 Mya — about 4 occurrences275–269 Mya — about 2 occurrences269–264 Mya — about 2 occurrences264–259 Mya — about 3 occurrences259–254 Mya — about 5 occurrences254–249 Mya — about 8 occurrences393.47 Mya254.14 Mya402 Mya249 Mya

167 occurrences of Amphissites 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

167 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

55 formations

Johns Valley — 34.48°N, 95.61°WJohns Valley — 34.60°N, 95.98°WJohns Valley — 34.66°N, 95.94°WJohns Valley — 34.75°N, 95.75°WJohns Valley — 34.46°N, 95.22°WJohns Valley — 34.59°N, 95.89°WJohns Valley — 34.79°N, 95.02°WShanda Horizon — 54.28°N, 85.93°EWewoka — 35.04°N, 96.38°WHenrietta — 38.59°N, 90.25°WHenrietta — 38.82°N, 90.37°WHenrietta — 38.65°N, 90.37°WHolmwood — 28.94°S, 115.54°ESalem Limestone — 37.49°N, 85.34°WChangxing — 25.73°N, 117.74°EQixia — 32.15°N, 119.10°EQixia — 30.64°N, 110.75°EArqov — 31.97°N, 34.87°EArqov — 31.26°N, 35.27°EArqov — 30.98°N, 34.81°EWujiaping — 25.57°N, 106.66°EWujiaping — 31.69°N, 104.43°EAmsden — 42.62°N, 108.69°WEtroeungt — 51.33°N, 7.05°EBlacourt — 50.83°N, 1.77°EFayetteville — 36.19°N, 94.09°WFayetteville — 36.08°N, 94.13°WRoad Canyon — 30.39°N, 103.14°WBeykoz — 41.63°N, 33.28°EKowala — 50.92°N, 20.58°EBaitugan — 55.74°N, 52.03°EBaitugan — 54.52°N, 52.12°EGraham — 32.40°N, 98.89°WHoxbar — 34.14°N, 97.19°WHoxbar — 34.15°N, 97.14°WSmedvinskaya — 48.30°N, 39.84°ENaco — 34.31°N, 111.11°WGlen Eyrie — 38.89°N, 104.89°WFlett — 63.88°N, 127.75°W

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The named rock units Amphissites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 31 further formations hold fewer occurrences each and are not listed. 30 occurrences have no formation on record, which is common for older literature.

Amphissites and its relatives

Carboniferous

Where Amphissites and its relatives were recorded in the Carboniferous.

Found in the same rock

1,575 taxa

The Paleobiology Database records 127 sites for Amphissites, 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

54 references

Each of the 167 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. 42 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 Amphissites

Credit
Carolyn Bartlett
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Amphissites 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 itAmphissitidae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Girty 1910