Anahamulina
Anahamulina is an extinct ammonoid cephalopod genus from the Lower Cretaceous. Named by Hyatt, 1900.

Motekov · 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
- HamulinidaePBDB
- 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 13 million years on record.
The record covers at least 132.6 Mya to 119.57 Mya. No occurrence read is dated outside 137.05 Mya to 113.2 Mya.
106 occurrences of Anahamulina 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
106 occurrences- Early Cretaceous100%
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
10 formations
- San Lucas Formation3
- Ishido Formation2
- Maiolica Formation2
- Labatlan Sandstone Formation2
- Bersek Marl Formation2
- Luckovska Formation1
Loading coastlines…
The named rock units Anahamulina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 90 occurrences have no formation on record, which is common for older literature.
Anahamulina and its relatives
Early CretaceousWhere Anahamulina and its relatives were recorded in the Early Cretaceous.
Found in the same rock
439 taxa- Phyllopachyceras infundibulum65 sites
- Barremites63 sites
- Phylloceras (Hypophylloceras) ponticuli39 sites
- Lytoceras27 sites
- Subpulchellia24 sites
- Holcodiscus23 sites
- Hamulinites20 sites
- Karsteniceras20 sites
- Spitidiscus19 sites
- Crioceratites15 sites
- Protetragonites15 sites
- Paraspiticeras14 sites
- Crioceratites (Emericiceras) thiollierei13 sites
- Protetragonites crebrisulcatus13 sites
- Silesites13 sites
- Toxancyloceras vandenheckii13 sites
- Dissimilites11 sites
- Pulchellia (Heinzia)11 sites
- Euphylloceras thetys10 sites
- Plesiospitidiscus subdifficilis10 sites
- Abrytusites neumayri8 sites
- Hamulina8 sites
- Haplobrancoceras subquadratum8 sites
- Phylloceras8 sites
The Paleobiology Database records 94 sites for Anahamulina, 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
16 references- Lower Barremian ammonite biostratigraphy in the Subbetic Domain (Betic Cordillera, southern Spain)65
- Ammonite biostratigraphy of the uppermost Hauterivian in the Betic Cordillera (SE Spain)8
- Biostratigraphic events at the Barremian/Aptian boundary in the Betic Cordillera, southern Spain8
- Integrated Lower Cretaceous biostratigraphy of the Bersek Quarry, Gerecse Mountains, Transdanubian Range. Hungary4
- Barremian ammonoids from Serre de Bleyton (Drôme, SE France)3
- Palaeoecological significance of Barremian ammonite assemblages and facies variations from Southwest Mexico3
- The biostratigraphy of the Hauterivian/Barremian Boundary Beds in the Krížna Nappe, Western Carpathians (Czechoslovakia)3
- The stratigraphic position of the ammonite bearing limestone bank of the Marvany-banya quarry (Zirc, Bakony Mts, Hungary) and the age of the Borzavar Limestone Formation2
- The first mesozoic chondrophorine (medusoid hydrozoan) from the Lower Cretaceous of Japan2
- Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast states2
- Ammonoid and foraminiferal biostratigraphy from uppermost Valanginian to lowermost Barremian of the Jebel Boulahouajeb section (northern Tunisia)1
- Aptian-early Cenomanian ammonites from north Sinai, Egypt: systematic paleontology and biostratigraphy1
Each of the 106 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. 4 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 Anahamulina
- Source
- Wikipedia/Commons
- Credit
- Motekov
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Anahamulina”
- 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 itHamulinidae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1900