Megamyonia

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
- FurcitellidaePBDB
- Diet
- suspension feederPBDB, for Strophomenida
- Life habit
- epifaunalPBDB, for Strophomenida
- Motility
- stationaryPBDB, for Strophomenida
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 27 million years on record.
The record covers at least 450.2 Mya to 422.7 Mya. No occurrence read is dated outside 457.3 Mya to 393.47 Mya.
124 occurrences of Megamyonia on record, most of them in the Ordovician. 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
124 occurrences- Ordovician99%
- Silurianunder 1%
- Devonianunder 1%
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
20 formations
- Vaureal Formation54
- Caution Creek Formation · Churchill River Group13
- Vauréal Formation · Anticosti Group8
- Surprise Creek Formation · Bad Cache Rapids Group7
- Scales Shale Formation · Maquoketa Group5
- Chasm Creek Formation · Churchill River Group4
Loading coastlines…
The named rock units Megamyonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Megamyonia and its relatives
OrdovicianWhere Megamyonia and its relatives were recorded in the Ordovician.
Found in the same rock
466 taxa- Nasutimena fluctuosa33 sites
- Eochonetes vaurealensis23 sites
- Tetraphalerella hecuba20 sites
- Dinorthis occidentalis18 sites
- Hypsiptycha anticostiensis17 sites
- Strophomena vetusta17 sites
- Hiscobeccus capax15 sites
- Strophomena planumbona13 sites
- Diceromyonia storeya12 sites
- Hiscobeccus gigas12 sites
- Rafinesquina11 sites
- Lepidocyclus perlamellosa10 sites
- Oepikina limbrata10 sites
- Plaesiomys proavita10 sites
- Strophomena10 sites
- Hesperorthis9 sites
- Lobocorallium9 sites
- Plaesiomys subquadratus9 sites
- Platystrophia9 sites
- Anazyga recurvirostra8 sites
- Isotelus susae7 sites
- Paucicrura corpulenta7 sites
- Rugomena planocorrugata7 sites
- Tetraphalerella neglecta7 sites
The Paleobiology Database records 114 sites for Megamyonia, 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
23 references- Late Ordovician and Early Silurian strophomenid brachiopods of Anticosti Island, Quebec, Canada53
- Late Ordovician brachiopods and biostratigraphy of the Hudson Bay Lowlands, northern Manitoba and Ontario13
- Ordovician paleontology of the Northern Hudson Bay lowland13
- Geology of Anticosti Island9
- Late Ordovician Articulate Brachiopods from the Red River and Stony Mountain Formations, Southern Manitoba5
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area3
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities3
- Articulate brachiopods of the Viola Formation (Ordovician) in the Arbuckle Mountains, Oklahoma3
- The Richmond Formation of Michigan3
- Unpublished field notes2
- Evenness, richness and the Cambrian-Paleozoic faunal transition in North America: an assemblage-level perspective2
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America2
Each of the 124 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. 11 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 Megamyonia
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- 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 itFurcitellidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wang 1949