Jiaodontus

Jiaodontus is an extinct genus of lonchidiid cartilaginous fish which existed in Liuhuanggou, Xinjiang Uyghur Autonomous Region, northwestern China, during the late Jurassic. Fossils have been found in the Qigu Formation, China. It was first named by Stefanie Klug, Thomas Tütken, Oliver Wings, Hans-Ulrich Pfretzschner and Thomas Martin in 2010 and the type species is Jiaodontus montaltissimus.

No picture of Jiaodontus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Jiaodontus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
LonchidiidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At most 8.7 million years on record.

Every occurrence read is dated to somewhere between 157.9 Mya and 149.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Jurassic — about 2 of 2 occurrencesLate Jurassic158–158 Mya — about 0.0 occurrences158–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–157 Mya — about 0.1 occurrences157–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–156 Mya — about 0.1 occurrences156–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–155 Mya — about 0.1 occurrences155–154 Mya — about 0.1 occurrences154–154 Mya — about 0.1 occurrences154–154 Mya — about 0.1 occurrences154–153 Mya — about 0.1 occurrences153–153 Mya — about 0.1 occurrences153–153 Mya — about 0.1 occurrences153–152 Mya — about 0.1 occurrences152–152 Mya — about 0.1 occurrences152–152 Mya — about 0.1 occurrences152–151 Mya — about 0.1 occurrences151–151 Mya — about 0.1 occurrences151–151 Mya — about 0.1 occurrences151–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–149 Mya — about 0.1 occurrences149–149 Mya — about 0.0 occurrences158.4 Mya148.7 Mya

2 occurrences of Jiaodontus on record, most of them in the Late Jurassic. 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

2 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

1 formation

Qigu — 43.55°N, 87.26°E

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

Jiaodontus and its relatives

Late Jurassic

Where Jiaodontus and its relatives were recorded in the Late Jurassic.

Found in the same rock

30 taxa

The Paleobiology Database records 1 site for Jiaodontus, 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

1 reference

Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Jiaodontus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Jiaodontus, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itLonchidiidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Klug et al. 2010