Nuculana (Praesaccella)

harrier · 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
- NuculanaPBDB
- Diet
- deposit feeder, suspension feederPBDB, for Nuculanidae
- Life habit
- infaunalPBDB, for Nuculanidae
- Motility
- facultatively mobilePBDB, for Nuculanidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculanidae
Time the record covers
At least 73 million years on record.
The record covers at least 199.5 Mya to 125.77 Mya. No occurrence read is dated outside 201.4 Mya to 121.4 Mya.
149 occurrences of Nuculana (Praesaccella) on record, most of them in the Middle Jurassic. 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
149 occurrences- Early Jurassic34%
- Middle Jurassic61%
- Late Jurassic5%
- Early Cretaceousunder 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
13 formations
- Chari Formation85
- Whitby Mudstone Formation19
- Piedra Pintada Formation6
- Habo beds Formation4
- Alum Shale Formation3
- Tataouine Formation1
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The named rock units Nuculana (Praesaccella) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 occurrences have no formation on record, which is common for older literature.
Nuculana (Praesaccella) and its relatives
Middle JurassicWhere Nuculana (Praesaccella) and its relatives were recorded in the Middle Jurassic.
Found in the same rock
318 taxa- Meleagrinella substriata12 sites
- Grammatodon (Grammatodon)10 sites
- Discinisca9 sites
- Bivalvia8 sites
- Gresslya8 sites
- Palaeonucula8 sites
- Protocardia (Protocardia)8 sites
- Bositra buchi7 sites
- Gastropoda7 sites
- Nicaniella (Nicaniella)7 sites
- Plagiostoma7 sites
- Camptonectes (Camptonectes) auritus6 sites
- Liostrea6 sites
- Actinostreon marshi5 sites
- Astarte (Astarte)5 sites
- Entolium5 sites
- Grammatodon (Indogrammatodon)5 sites
- Gryphaea5 sites
- Lingularia5 sites
- Oxytoma5 sites
- Parallelodon5 sites
- Pholadomya lirata5 sites
- Actinostreon gregarea4 sites
- Astarte4 sites
The Paleobiology Database records 60 sites for Nuculana (Praesaccella), 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
18 references- Unpublished data from Kachchh87
- The Impact of Global Warming and Anoxia on Marine Benthic Community Dynamics: an Example from the Toarcian (Early Jurassic)18
- Palokologie und zeitliche Verbreitung benthischer Faunengemeinschaften im Unterjura von Chile7
- Early Jurassic Bivalvia of Argentina: Part 1, Stratigraphical introduction and superfamilies Nuculanacea, Arcacea, Mytilacea and Pinnacea7
- A systematic survey of the Mesozoic Bivalvia from Japan5
- Early Jurassic Bivalvia of western Canada. Part I. Subclasses Palaeotaxodonta, Pteriomorpha, and Isofilibranchia4
- The occurrence of Discinisca on Dacryomya ovum: an example of commensalism from the Upper Lias of Yorkshire4
- Habo Beds near Ler (Kutch): Pt. 3 - Biostratigraphy of the beds on the east of Ler4
- Palökologie benthischer Faunen aus dem Unter-Toarc SW-Europas2
- Palökologie von Benthos-Gemeinschaften im oberen Pliensbach (Amaltheenton) von Kalchreuth (Mittelfranken)2
- Early Jurassic Bivalvia of northern Chile. Part I. Subclasses Palaeotaxodonta, Pteriomorphia, and Isofilibranchia2
- The Upper Jurassic–Lower Cretaceous of eastern Heilongjiang, northeast China: stratigraphy and regional basin history1
Each of the 149 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. 6 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 Nuculana (Praesaccella)
- Source
- GBIF
- Credit
- harrier
- 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 itNuculana through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cox 1940