Cyzicus

Cyzicus is a genus of clam shrimps in the family Cyzicidae. Identified by Jean Victoire Audouin in 1837, the genus was reidentified as Caenestheriella by Eugen von Daday in 1910. Cyzicus tetracerus is the type species.

Cyzicus

Franco Folini · CC BY-SA 2.0 · 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
CyzicidaePBDB
Diet
suspension feeder, detritivorePBDB, for Branchiopoda
Life habit
nektobenthicPBDB, for Branchiopoda
Motility
slow-movingPBDB, for Branchiopoda
Vision
well-developedPBDB, for Branchiopoda
Environment
marine,brackish,freshwaterPBDB, for Branchiopoda

Time the record covers

At least 126 million years on record.

The record covers at least 227.3 Mya to 100.5 Mya. No occurrence read is dated outside 237 Mya to 93.9 Mya.

Middle Triassic — about 0 of 31 occurrencesLate Triassic — about 20 of 31 occurrencesLate TriassicEarly Jurassic — about 0 of 31 occurrencesMiddle Jurassic — about 1 of 31 occurrencesMiddle JurassicLate Jurassic — about 6 of 31 occurrencesLate JurassicEarly Cretaceous — about 3 of 31 occurrencesEarly CretaceousLate Cretaceous — about 1 of 31 occurrences240–235 Mya — about 3 occurrences235–230 Mya — about 7 occurrences230–225 Mya — about 4 occurrences225–220 Mya — about 1 occurrence220–215 Mya — about 1 occurrence215–210 Mya — about 1 occurrence210–205 Mya — about 1 occurrence170–165 Mya — about 0.9 occurrences165–160 Mya — about 0.3 occurrences160–156 Mya — about 2 occurrences156–151 Mya — about 2 occurrences151–146 Mya — about 2 occurrences146–141 Mya — about 1 occurrence141–136 Mya — about 0.5 occurrences136–131 Mya — about 0.5 occurrences131–126 Mya — about 0.5 occurrences126–121 Mya — about 0.2 occurrences116–111 Mya — about 0.2 occurrences111–106 Mya — about 0.4 occurrences106–101 Mya — about 0.4 occurrences101–96 Mya — about 0.7 occurrences96–91 Mya — about 0.3 occurrences227.3 Mya100.5 Mya240 Mya91 Mya

31 occurrences of Cyzicus on record, most of them in the Late Triassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

31 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

18 formations

Grabfeld — 49.70°N, 10.43°EGrabfeld — 49.88°N, 10.43°EGrabfeld — 50.27°N, 10.42°EBrejo Santo — 7.25°S, 39.12°WBrejo Santo — 7.50°S, 39.00°WBrejo Santo — 7.17°S, 39.31°WStuttgart — 49.20°N, 9.30°ELockatong — 40.81°N, 74.02°WLockatong — 40.42°N, 75.06°WTuckahoe — 37.52°N, 77.63°WTuckahoe — 37.60°N, 77.72°WWoodbine — 33.63°N, 97.13°WBlisworth Clay — 53.50°N, 0.33°WPendencia — 5.77°S, 37.37°WCañadón Calcáreo — 43.17°S, 69.25°WLagarcito — 32.50°S, 66.99°WWolfville — 45.22°N, 64.00°WPhra Wihan — 18.49°N, 100.51°EPassaic — 40.75°N, 74.19°WTecovas — 33.45°N, 101.17°WNew Oxford — 40.05°N, 76.77°WPekin — 35.50°N, 79.40°WCumnock — 35.56°N, 79.29°WVinita — 37.46°N, 77.67°W

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The named rock units Cyzicus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Cyzicus and its relatives

Late Triassic

Where Cyzicus and its relatives were recorded in the Late Triassic.

Found in the same rock

188 taxa

The Paleobiology Database records 26 sites for Cyzicus, 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

20 references

Each of the 31 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. 8 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 Cyzicus

Credit
Franco Folini
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

No 3D scan of Cyzicus was found in Sketchfab.

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 itCyzicidae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Audouin 1837