Clitendoceras

Clitendoceras is a genus of cephalopods in the order Endocerida from the Lower Ordovician with an elongate shell with a slight downward, endogastric, curvature and a siphuncle that lies along the ventral margin. Common for endocerids, the chambers are short and the septa close spaced with sutures sloping forward across the back of the shell. Septal necks are short in the young, lengthening in the adult. Endocones are simple, but with the ventral side of the last formed projecting forward. The endosiphotube running down the middle is arched on top and somewhat flat on the lower side.

Clitendoceras

via iDigBio · via iDigBio. 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
ProterocameroceratidaePBDB
Diet
carnivorePBDB, for Endocerida
Life habit
nektobenthicPBDB, for Endocerida
Motility
actively mobilePBDB, for Endocerida
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 4.6 million years on record.

The record covers at least 481.7 Mya to 477.1 Mya. No occurrence read is dated outside 486.85 Mya to 457.3 Mya.

Cambrian — about 0 of 15 occurrencesOrdovician — about 15 of 15 occurrencesOrdovician487–486 Mya — about 0.1 occurrences486–485 Mya — about 0.1 occurrences485–484 Mya — about 0.1 occurrences484–483 Mya — about 0.2 occurrences483–482 Mya — about 2 occurrences482–481 Mya — about 2 occurrences481–480 Mya — about 0.8 occurrences480–479 Mya — about 0.8 occurrences479–478 Mya — about 0.8 occurrences478–477 Mya — about 0.8 occurrences477–476 Mya — about 1 occurrence476–475 Mya — about 1 occurrence475–474 Mya — about 1 occurrence474–473 Mya — about 1 occurrence473–472 Mya — about 1 occurrence472–471 Mya — about 0.9 occurrences471–470 Mya — about 0.3 occurrences470–469 Mya — about 0.3 occurrences469–468 Mya — about 0.3 occurrences468–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–463 Mya — about 0.1 occurrences463–462 Mya — about 0.1 occurrences462–461 Mya — about 0.1 occurrences461–460 Mya — about 0.1 occurrences460–459 Mya — about 0.1 occurrences459–458 Mya — about 0.1 occurrences458–457 Mya — about 0.0 occurrences481.7 Mya477.1 Mya487.4 Mya456.7 Mya

15 occurrences of Clitendoceras on record, most of them in the Ordovician. 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

15 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

Ben Suardal Limestone — 57.22°N, 4.78°WBen Suardal Limestone — 57.23°N, 5.91°WBen Suardal Limestone — 57.21°N, 6.02°WRockdale Run — 39.63°N, 77.82°WLianjiashan — 40.00°N, 118.00°ELianjiashan — 39.00°N, 118.00°ERochdale — 43.47°N, 73.41°WRochdale — 43.36°N, 73.47°WCroisaphuill — 58.51°N, 4.80°WGorman — 30.27°N, 97.74°WFort Ann — 43.91°N, 73.42°WFort Cassin — 44.60°N, 73.44°W

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

Clitendoceras and its relatives

Ordovician

Where Clitendoceras and its relatives were recorded in the Ordovician.

Found in the same rock

110 taxa

The Paleobiology Database records 15 sites for Clitendoceras, 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

8 references

Each of the 15 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 Clitendoceras

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Clitendoceras 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 itProterocameroceratidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Foerste 1936