Neocomitidae
Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute to smooth, fairly involute shells.
Hectonichus · CC BY-SA 3.0 · 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
- PerisphinctoideaPBDB
- 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 32 million years on record.
The record covers at least 152.21 Mya to 119.57 Mya. No occurrence read is dated outside 164.3 Mya to 100.5 Mya.
2,600 occurrences of Neocomitidae on record, most of them in the Early Cretaceous. 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
2,600 occurrences- Middle Jurassicunder 1%
- Late Jurassic12%
- Early Cretaceous88%
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
91 formations
- Miravetes Formation202
- La Caja Formation156
- Agrio Formation · Mendoza Group77
- Szentivánhegy Limestone Formation50
- Maiolica Formation44
- Spiti Shale Formation40
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The named rock units Neocomitidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 67 further formations hold fewer occurrences each and are not listed. 1,403 occurrences have no formation on record, which is common for older literature.
Neocomitidae and its relatives
Early CretaceousWhere Neocomitidae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
671 taxa- Olcostephanus atherstoni20 sites
- Neocomites neocomiensis18 sites
- Berriasella17 sites
- Sarasinella17 sites
- Hoplitocrioceras gentilii15 sites
- Neolissoceras grasianum15 sites
- Cucullaea14 sites
- Olcostephanus14 sites
- Crioceratites13 sites
- Buchia11 sites
- Busnardoites campylotoxus11 sites
- Exogyra reedi11 sites
- Thurmanniceras11 sites
- Thurmanniceras thurmanni11 sites
- Bochianites neocomiensis10 sites
- Ptychomya10 sites
- Hoplitocrioceras giovinei9 sites
- Karakaschiceras biassalense9 sites
- Luppovella (Luppovella) superba9 sites
- Lyticoceras9 sites
- Neocomites premolicus9 sites
- Buchia volgensis8 sites
- Karakaschiceras8 sites
- Neocomites (Eristavites) teschenensis8 sites
The Paleobiology Database records at least 834 sites for Neocomitidae, and this reads 240 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
143 references- L'évolution des ammonites du Valanginien-Hauterivien inférieur du bassin Vocontien et de la plate-form Provençale (sud-est de la France): relations avec la stratigraphie séquentielle et implications biostratigraphiques812
- The Berriasian/Valanginian boundary in the Mediterranean region: new data from the Caravaca and Cehegin sections, SE Spain182
- Valanginian (Early Cretaceous ) ammonite faunas from the western High Atlas, Morocco, and the recognition of western Mediterranean 'standard' zones141
- The Tithonian (Jurassic) ammonite fauna of Sierra Catorce, San Luis Potosi, Mexico116
- Integrated isotope and biostratigraphy of a Lower Cretaceous section from the Bakony Mountains (Transdanubian Range, Hungary): A new Tethyan record of the Weissert event78
- Renouvellement des ammonites en fosse Vocontienne a la limite Valanginien-Hauterivien [Ammonite turnover in the Vocontian trough at the Valanginian-Hauterivian boundary]59
- Valanginian and early Hauterivian ammonite successions in the Mt Catria group (Central Apennines) and the Lessini Mts (Southern Alps), Italy45
- Ammonoid stratigraphy of the Spiti Shale Formation in Spiti Himalaya, India45
- Lower Cretaceous ammonites from the Neuquen Basin, Argentina: the Hauterivian neocomitid genus Hoplitocrioceras (Giovine, 1950)43
- Ammonite Biostratigraphy and Correlations in the Upper Jurassic-Lowermost Cretaceous La Caja Formation of North-Central Mexico (Sierra de Catorce, San Luis de Potosí)40
- The Jurassic-Cretaceous Boundary (Tithonian - Hauterivian) in the Andean Basin of Central Chile: Ammonites, Bio- and Sequence Stratigraphy and Palaeobiogeography37
- Los ammonites del transito Berriasense-Valanginiense en la region de Cehegin (Prov. de Murcia, SE de España)34
Each of the 2,600 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. 131 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 Neocomitidae
- Source
- Wikipedia/Commons
- Credit
- Hectonichus
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Neocomitidae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itPerisphinctoidea through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Salfeld 1921)