Flexoptychites acutus

Yale Peabody Museum · CC0 · via GBIF. 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
- FlexoptychitesPBDB
- Diet
- carnivorePBDB, for Ceratitida
- Life habit
- nektonicPBDB, for Ceratitida
- Motility
- actively mobilePBDB, for Ceratitida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 1.9 million years on record.
The record covers at least 243.43 Mya to 241.464 Mya. No occurrence read is dated outside 247 Mya to 239.48 Mya.
65 occurrences of Flexoptychites acutus on record, most of them in the Middle Triassic. 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
65 occurrences- Middle Triassic100%
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
14 formations
- Vászoly Formation15
- Esino Formation7
- Besano Formation6
- Bulog Formation6
- Dorgicse Formation4
- Dunnatető Limestone Formation4
Loading coastlines…
The named rock units Flexoptychites acutus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.
Flexoptychites acutus and its relatives
Middle TriassicWhere Flexoptychites acutus and its relatives were recorded in the Middle Triassic.
Found in the same rock
299 taxa- Flexoptychites flexuosus28 sites
- Monophyllites wengensis22 sites
- Flexoptychites angustoumbilicatus18 sites
- Norites gondola14 sites
- Trematoceras elegans14 sites
- Ptychites oppeli12 sites
- Hungarites mojsisovicsi11 sites
- Longobardites zsigmondyi11 sites
- Proarcestes11 sites
- Paraceratites trinodosus10 sites
- Discoptychites megalodiscus9 sites
- Gymnites incultus9 sites
- Reitziites reitzi9 sites
- Sturia sansovinii9 sites
- Lardaroceras krystyni8 sites
- Megaceratites subnodosus8 sites
- Arcestes7 sites
- Parahungarites arthaberi7 sites
- Reitziites ecarinatus7 sites
- Atractites6 sites
- Epikellnerites vaszolyensis6 sites
- Megaphyllites sandalinus6 sites
- Paraceratites elegans6 sites
- Parakellnerites waageni6 sites
The Paleobiology Database records 65 sites for Flexoptychites acutus, 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
12 references- The Upper Anisian ammonoids of the Balaton Highland (Hungary)28
- The Ladinian ammonoids from the Calcare di Esino of Val Parina (Bergamasc Alps, Northern Italy). Part. 27
- Geologie der Umgebung von Sarajevo7
- Die Triasfauna der Tessiner Kalkalpen: XXII. Cephalopoden aus der Grenzbitumenzone (Mittlere Trias) des Monte San Giorgio (Kanton Tessin, Schweiz)6
- Late Anisian Ammonoidea from Szár-hegy (Rudabánya Mts); a Dinaric-type fauna from North Hungary4
- Lithofacies palaeogeography and biostratigraphy of the lowermost horizons of the Middle Triassic Hallstatt Limestones (Argolis Peninsula, Greece)3
- The Anisian/Ladinian boundary in the Vászoly section (Balaton Highland, Hungary)3
- Eine Fauna des Wettersteinkalkes bei Innsbruck2
- Die Cephalopoden der Mediterranen Triasprovinz2
- Pelsonian and Illyrian (Anisian, Middle Triassic) ammonoid faunas from the Bulog Group of Kovčezi, Durmitor Mountain, Dinarides (northern Montenegro)1
- Paleoenvironmental distribution of some Middle Triassic ammonoid genera in the Balaton Highland (Hungary)1
- Towards a better definition of the Anisian/Ladinian boundary: new biostratigraphic data and correlations of boundary sections from the Southern Alps1
Each of the 65 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 Flexoptychites acutus
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Flexoptychites acutus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itFlexoptychites through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (von Mojsisovics 1882)