Hudlestonia

Not Hudlestonia. This is Unio tumidus Philipsson, 1788, a relative.
-919270953 · CC BY 4.0 · 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
- GrammoceratinaePBDB
- 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 37 million years on record.
The record covers at least 174.7 Mya to 137.05 Mya. No occurrence read is dated outside 184.2 Mya to 132.6 Mya.
29 occurrences of Hudlestonia on record. 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
29 occurrencesThese 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
4 formations
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The named rock units Hudlestonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.
Found in the same rock
44 taxa- Dumortieria13 sites
- Pleurolytoceras hircinum11 sites
- Hudlestoniella10 sites
- Pleydellia10 sites
- Cotteswoldia aalensis9 sites
- Cotteswoldia fluitans9 sites
- Pleydellia costulata9 sites
- Cenoceras intermedium8 sites
- Pleurolytoceras wrighti8 sites
- Cotteswoldia distans7 sites
- Cotteswoldia subcompta7 sites
- Cotteswoldia mactra6 sites
- Phlyseogrammoceras dispansiforme5 sites
- Dumortieria kochi4 sites
- Dumortieria rustica4 sites
- Phylloceras supraliasicum4 sites
- Pleydellia leura4 sites
- Dumortieria moorei3 sites
- Phlyseogrammoceras3 sites
- Dumortieria pseudoradiosa2 sites
- Entolium demissum2 sites
- Sulcoactaeon2 sites
- Acteonina1 site
- Alocolytoceras1 site
The Paleobiology Database records 26 sites for Hudlestonia, 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
5 references- Die Ammonitenfauna und Stratigraphie der Tongrube Mistelgau bei Bayreuth (Oberfranken)14
- Truncatelloidea (Littorinimorpha, Gastropoda) aus dem Lias und Dogger Deutschlands und Nordpolens7
- Mesozoic gastropods from Siberia and Timan (Russia). Part 1: Vetigastropoda and Caenogastropoda (exclusive of Neogastropoda)4
- Notes on Dogger horizons in north-east Yorkshire3
- Belemnites from the Upper Pliensbachian and the Toarcian (Lower Jurassic) of Tournadous (Causses, France)1
Each of the 29 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 Unio tumidus Philipsson, 1788
- Source
- GBIF
- Credit
- -919270953
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGrammoceratinae through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.