Modiolus thomsoni

via iDigBio · CC0 · via iDigBio. 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
- ModiolusPBDB
- Diet
- suspension feederPBDB, for Modiolus
- Life habit
- semi-infaunalPBDB, for Modiolus
- Motility
- stationary, attached, epibiontPBDB, for Modiolus
- Vision
- blindPBDB, for Bivalvia
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae
Time the record covers
At least 20 million years on record.
The record covers at least 41.03 Mya to 20.45 Mya. No occurrence read is dated outside 56 Mya to 15.98 Mya.
29 occurrences of Modiolus thomsoni on record, most of them in the Eocene. 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 Modiolus thomsoni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Modiolus thomsoni and its relatives
EoceneWhere Modiolus thomsoni and its relatives were recorded in the Eocene.
Found in the same rock
128 taxa- Polinices (Polinices) subtenuis16 sites
- Eurhomalea newtoni13 sites
- Saxolucina sharmani13 sites
- Periploma topei11 sites
- Cyclorismina marwicki8 sites
- Hiatella tenuis8 sites
- Mactra irizari8 sites
- Sudonassarius antarctohimaleos8 sites
- Antarctodarwinella ellioti7 sites
- Colposigma euthenia7 sites
- Struthioptera camachoi7 sites
- Austrobuccinum tuberosum6 sites
- Austroficopsis wimani6 sites
- Cucullaea raea6 sites
- Perissodonta laevis6 sites
- Austrotoma oliveroi5 sites
- Colposigma capitanea5 sites
- Eucrassatella wilckensi5 sites
- Eurhomalea antarctica5 sites
- Lahillia wilckensi5 sites
- Nucula (Leionucula) nova5 sites
- Struthiolarella variabilis5 sites
- Antarctodarwinella nordenskjoldi4 sites
- Cyrtochetus (Cyrtochetus) bucciniformis4 sites
The Paleobiology Database records 28 sites for Modiolus thomsoni, 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
3 references- Molluscan Systematics and Biostratigraphy26
- Eocene bivalves from the Rio Turbio Formation, southwestern Patagonia (Argentina)2
- Observaciones estratigraficas en el Paleogeno del noroeste de la Provincia de Santa Cruz (Republica Argentina). Parte II: Invertebrados marinos de la Formacion El Chacy (Eoceno), Provincia de Santa Cruz, Argentina. Systematica y bioestratigrafia1
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 content2

Picture of Modiolus thomsoni
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itModiolus through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Zinsmeister 1984