Undulostrea megodon

Hanley, 1846 · CC0 · via Wikidata/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- Also called
- arc oysterPBDB
- Sits inside
- UndulostreaPBDB
- Diet
- suspension feederPBDB, for Undulostrea
- Life habit
- epifaunalPBDB, for Undulostrea
- Motility
- stationary, attachedPBDB, for Undulostrea
- Vision
- blindPBDB, for Bivalvia
- Environment
- hypersaline,marine,brackishPBDB, for Ostreidae
Time the record covers
At least 27 million years on record.
The record covers at least 27.3 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 0 Mya.
38 occurrences of Undulostrea megodon on record, most of them in the Pliocene. The Paleobiology Database records this as a living group. 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
38 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
15 formations
- San Marcos Formation5
- Mancora Tablazo Formation4
- Salada Formation3
- Jama Formation2
- Canoa Formation2
- Tubará Formation2
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The named rock units Undulostrea megodon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Undulostrea megodon and its relatives
PlioceneWhere Undulostrea megodon and its relatives were recorded in the Pliocene.
Found in the same rock
823 taxa- Argopecten ventricosus10 sites
- Anomia peruviana8 sites
- Ostrea6 sites
- Argopecten purpuratus5 sites
- Dendostrea vespertina5 sites
- Turritella gonostoma5 sites
- Argopecten cristobalensis4 sites
- Dosinia ponderosa4 sites
- Leptopecten latiauratus4 sites
- Malea ringens4 sites
- Oliva peruviana4 sites
- Stramonita chocolata4 sites
- Argopecten callidus3 sites
- Asperiscala minuticosta3 sites
- Balanus3 sites
- Bulla punctulata3 sites
- Cantharus3 sites
- Chione undatella3 sites
- Conus fergusoni3 sites
- Dendraster pentagonalis3 sites
- Echinoidea3 sites
- Euvola bella3 sites
- Euvola vogdesi3 sites
- Fusinus3 sites
The Paleobiology Database records 18 sites for Undulostrea megodon, 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
21 references- 1940 E.W. Scripps cruise to the Gulf of California. Part II - Megascopic paleontology and marine stratigraphy5
- A Pliocene fauna from Western Ecuador4
- Reconnaissance of the geology and oil possibilities of Baja California, Mexico3
- Expedition to the Revillagigedo Islands, Mexico, in 1925, VII. Contribution to the geology and paleontology of the Tertiary of Cedros Island and adjacent parts of Lower California3
- Geology of the Quaternary Period, on a part of the Pacific Coast of Peru3
- The Miocene of Northern Costa Rica3
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel2
- The geology of late Cenozoic marine terraces (tablazos) in northwestern Peru2
- Quaternary invertebrate fossil assemblages from coastal marine ecosystems of Bahia de Panama, Panama1
- Taphonomic and paleoecological analyses (mollusks and fishes) of the Súa Member condensed shelled, upper Onzole Formation (Early Pliocene, Ecuador)1
- Warm-water mollusc assemblages from northern Chile (Mejillones Peninsula): new evidence for permanent El Nino-like conditions during Pliocene warmth?1
- Paleoecology and paleobiogeography of fossil mollusks from Isla Isabela (Galapagos, Ecuador)1
Each of the 38 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. 9 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 Undulostrea megodon
- Source
- Wikidata/Commons
- Credit
- Hanley, 1846
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Undulostrea megodon was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itUndulostrea through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hanley 1846)