Lopha
Lopha is a genus of marine bivalve molluscs in the family of Ostreidae.
Hectonichus · CC BY-SA 3.0 · via Wikipedia/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- Sits inside
- LophinaePBDB
- Diet
- suspension feederPBDB, for Ostreidae
- Life habit
- epifaunalPBDB, for Ostreidae
- Motility
- stationary, attachedPBDB, for Ostreidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- hypersaline,marine,brackishPBDB, for Ostreidae
Time the record covers
At least 274 million years on record.
The record covers at least 274.4 Mya to 11.7 ka. No occurrence read is dated outside 283.3 Mya to 0 Mya.
480 occurrences of Lopha on record, most of them in the Late Cretaceous. 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
480 occurrences- Permian4%
- Early Triassicunder 1%
- Middle Triassic5%
- Late Triassic4%
- Early Jurassic5%
- Middle Jurassic20%
- Late Jurassic7%
- Early Cretaceous8%
- Late Cretaceous23%
- Paleoceneunder 1%
- Eocene4%
- Oligocene10%
- Miocene6%
- Pliocene2%
- Pleistocene1%
- Holoceneunder 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
137 formations
- Corsicana Marl Formation27
- Qingyan Formation22
- Byram Formation · Vicksburg Group19
- Prairie Bluff Formation15
- Futuna Limestone Formation13
- Calcaires pseudo-oolithiques superieurs Formation10
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The named rock units Lopha has been recovered from, largest first. Drawn where the rock is now, not where it formed. 113 further formations hold fewer occurrences each and are not listed. 90 occurrences have no formation on record, which is common for older literature.
Lopha and its relatives
Late CretaceousWhere Lopha and its relatives were recorded in the Late Cretaceous.
Found in the same rock
2,327 taxa- Bryozoa39 sites
- Ostrea39 sites
- Serpula38 sites
- Corbula36 sites
- Exogyra (Exogyra) costata36 sites
- Vertebrata32 sites
- Anomia argentaria31 sites
- Cliona29 sites
- Cubitostrea tecticosta29 sites
- Cymbophora29 sites
- Nuculana29 sites
- Turritella29 sites
- Plagiostoma27 sites
- Crassatella vadosa26 sites
- Pycnodonte vesicularis26 sites
- Chlamys25 sites
- Gryphaeostrea vomer25 sites
- Veniella conradi25 sites
- Pteria24 sites
- Turritella vertebroides24 sites
- Crenella serica23 sites
- Gastropoda23 sites
- Baculites22 sites
- Idonearca capax22 sites
The Paleobiology Database records 419 sites for Lopha, and this reads 240 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
150 references- Geologie, Paleontologie et Paleoecologie du Bathonien au sud-ouest du Massif Ardennais52
- Jurassic Bivalvia and Gastropoda from Tanganyika and Kenya24
- Fossilvergesellschaftungen, Paläoökologie und paläosynökologische Entwicklung im Oberen Anisium (Mittlere Trias) von Qingyan, insbesondere Bangtoupo, Provinz Guizhou, Südwestchina20
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain18
- Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi16
- Recherches géologiques sur le Crétacé inférieur de l'Estremadura (Portugal)16
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf15
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain14
- Geology of Lau, Fiji14
- Patterns of molluscan extinction and recovery across the Cretaceous-Tertiary boundary in east Texas; report on new outcrops13
- Testing for patterns of faunal persistence in the early Oligocene Byram Formation of Mississippi12
- Mollusks of the Chickasawhay Marl9
Each of the 480 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. 138 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 content2
Picture of Lopha
- Source
- Wikipedia/Commons
- Credit
- Hectonichus
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial-ShareAlike
- Commercial use
- the licence does not allow it
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Lopha”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLophinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Röding 1798)