Catacoeloceras
Catacoeloceras is a genus of ammonite that lived during Middle Toarcian stage of early Jurassic. Members of this genus existed from the Bifrons Subzone of the Bifrons Zone to the Variabilis Zone. Their fossils have been found in Europe, northern Africa, Asia, North America and South America. It is believed to have evolved from Porpoceras.

Tylwyth Eldar · CC BY-SA 4.0 · 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
- DactylioceratinaePBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Ammonoidea
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 19 million years on record.
The record covers at least 199.5 Mya to 180.4 Mya. No occurrence read is dated outside 201.4 Mya to 165.3 Mya.
141 occurrences of Catacoeloceras on record, most of them in the Early 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
141 occurrences- Early Jurassic99%
- Middle Jurassicunder 1%
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
15 formations
- Alum Shale Formation16
- Kisgerecse Formation11
- Marnes de Fontaneilles Formation6
- Subbetic Basin Formation4
- Kisgerecse Marl Formation3
- Jurensismergel Formation2
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The named rock units Catacoeloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 88 occurrences have no formation on record, which is common for older literature.
Catacoeloceras and its relatives
Early JurassicWhere Catacoeloceras and its relatives were recorded in the Early Jurassic.
Found in the same rock
164 taxa- Hildoceras bifrons14 sites
- Phymatoceras13 sites
- Hildoceras semipolitum12 sites
- Osperleioceras (Pseudopolyplectus) bicarinatum12 sites
- Collina9 sites
- Mucrodactylites mucronatus9 sites
- Polyplectus pluricostatus9 sites
- Calliphylloceras8 sites
- Haugia variabilis8 sites
- Hildoceras8 sites
- Pseudolioceras8 sites
- Hildoceras lusitanicum7 sites
- Mercaticeras7 sites
- Calliphylloceras aveyronnense6 sites
- Osperleioceras6 sites
- Transicoeloceras viallii6 sites
- Mucrodactylites clapierensis5 sites
- Pseudolioceras compactile5 sites
- Frechiella kammerkarensis4 sites
- Harpoceras (Harpoceras) mediterraneum4 sites
- Haugia4 sites
- Haugia illustris4 sites
- Lytoceras4 sites
- Osperlioceras seidlitzi4 sites
The Paleobiology Database records 107 sites for Catacoeloceras, 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
27 references- Die Ammoniten-Gattung Catacoeloceras im S-franzoesischen und S-deutschen Ober-Toarcien. The ammonite genus Catacoeloceras in the upper Toarcian of southern France and southern Germany38
- The Jet Rock Series and the Alum Shale Series of the Yorkshire coast17
- Das Makrobenthos der Causses (Südfrankreich): Palökologie einer mittel- bis oberliassischen Mergelfolge11
- Réparation biostratigraphique des ammonites du Toarcien moyen de la bordure sud des Causses (France) et révision des ammonites décrites et figurées par Monestier (1931)10
- Remarks on the Toarcian-Aalenian fossil assemblage of the Kis-Teke Hill, Gerecse Mts (Hungary)9
- Les Harpoceratinae, Hildoceratinae et Parinoceratinae du Toarcien de la Vendée et des Deux-Sèvres (France)7
- Belemnites from the Upper Pliensbachian and the Toarcian (Lower Jurassic) of Tournadous (Causses, France)6
- Middle Toarcian Ammonitina from the Gerecse Mts, Hungary6
- Biozonación del Toarciense en el área de La Almunia de Doña Godina-Ricla (Sector Central de la Cordillera Ibérica)5
- The Toarcian in the Subbetic basin (southern Spain): Bio-events (ammonite and calcareous nannofossils) and carbon-isotope stratigraphy4
- La Couche à Crassum (Toarcien moyen) au Luxembourg: stratigraphie et faunes de la coupe de Dudelange-Zoufftgen3
- Ammonite stratigraphy of a Toarcian (Lower Jurassic) section on Nagy-Pisznice Hill (Gerecse Mts, Hungary)3
Each of the 141 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. 15 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 content2
Picture of Catacoeloceras
- Source
- Wikipedia/Commons
- Credit
- Tylwyth Eldar
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itDactylioceratinae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.