Canonia

Canonia is an extinct genus of jawless fish found in Canada. There are two species in this genus, C. grossi and C. costulata. The C.grossi species is thought to be from the Devonian Period. Fossils of C.grossi have been found in the Boothia Peninsula. Isolated scales of Canonia are streamlined to minimize drag, similar to modern sharks capable of strong swimming in open waters.

No picture of Canonia 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 Canonia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
FurcacaudidaePBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At most 27 million years on record.

Every occurrence read is dated to somewhere between 419.62 Mya and 393.47 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Silurian — about 0 of 11 occurrencesDevonian — about 11 of 11 occurrencesDevonian420–419 Mya — about 0.6 occurrences419–418 Mya — about 1 occurrence418–417 Mya — about 1 occurrence417–417 Mya — about 1 occurrence417–416 Mya — about 1 occurrence416–415 Mya — about 1 occurrence415–414 Mya — about 1 occurrence414–413 Mya — about 1 occurrence413–412 Mya — about 0.0 occurrences412–411 Mya — about 0.0 occurrences411–410 Mya — about 0.0 occurrences410–409 Mya — about 0.0 occurrences409–408 Mya — about 0.0 occurrences408–407 Mya — about 0.0 occurrences407–407 Mya — about 0.0 occurrences407–406 Mya — about 0.0 occurrences406–405 Mya — about 0.0 occurrences405–404 Mya — about 0.0 occurrences404–403 Mya — about 0.0 occurrences403–402 Mya — about 0.0 occurrences402–401 Mya — about 0.0 occurrences401–400 Mya — about 0.0 occurrences400–399 Mya — about 0.0 occurrences399–398 Mya — about 0.0 occurrences398–397 Mya — about 0.0 occurrences397–397 Mya — about 0.0 occurrences397–396 Mya — about 0.0 occurrences396–395 Mya — about 0.0 occurrences395–394 Mya — about 0.0 occurrences394–393 Mya — about 0.0 occurrences420.1 Mya392.9 Mya

11 occurrences of Canonia on record, most of them in the Devonian. 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

11 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

8 formations

Pod''emnaya — 79.50°N, 96.00°EPod''emnaya — 79.67°N, 95.73°EBarlow Inlet — 75.04°N, 93.65°WFraenkelryggen — 79.67°N, 12.37°EWindmill Limestone — 39.96°N, 116.58°WBen Nevis — 79.63°N, 12.29°ESomerset Island — 71.49°N, 93.46°WDrake Bay — 73.46°N, 100.49°WChester Bjerg — 81.75°N, 60.53°W

Loading coastlines…

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

Canonia and its relatives

Devonian

Where Canonia and its relatives were recorded in the Devonian.

Found in the same rock

93 taxa

The Paleobiology Database records 10 sites for Canonia, 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

9 references

Each of the 11 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 content0

No picture of Canonia 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 Canonia, 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 itFurcacaudidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vieth 1980