Lucinoidea
Lucinidae, common name hatchet shells, is a family of saltwater clams, marine bivalve molluscs.

GrahamBould · Public Domain · 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
- LucinidaPBDB
- Diet
- chemosymbioticPBDB
- Life habit
- infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 458 million years on record.
The record covers at least 458.2 Mya to 129 ka. No occurrence read is dated outside 469.4 Mya to 11.7 ka.
897 occurrences of Lucinoidea on record, most of them in the Devonian. 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
897 occurrences- Ordovicianunder 1%
- Silurian1%
- Devonian32%
- Carboniferousunder 1%
- Early Triassicunder 1%
- Middle Triassic1%
- Late Triassicunder 1%
- Early Jurassic18%
- Middle Jurassic13%
- Late Jurassic11%
- Early Cretaceous6%
- Late Cretaceous16%
- Paleoceneunder 1%
- Eoceneunder 1%
- Oligoceneunder 1%
- Pleistoceneunder 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
202 formations
- Geneseo Formation · Genesee Group45
- Lime Creek Formation31
- Dhruma Formation · Shaqra Group26
- Tataouine Formation24
- Skaneateles Formation · Hamilton Group22
- Ladd Formation21
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The named rock units Lucinoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 178 further formations hold fewer occurrences each and are not listed. 177 occurrences have no formation on record, which is common for older literature.
Lucinoidea and its relatives
DevonianWhere Lucinoidea and its relatives were recorded in the Devonian.
Found in the same rock
2,118 taxa- Paracyclas69 sites
- Unicardium47 sites
- Nuculana46 sites
- Serpula41 sites
- Veniella conradi37 sites
- Mactromya36 sites
- Cyprimeria35 sites
- Cymbophora34 sites
- Linearis34 sites
- Crenella serica33 sites
- Granocardium33 sites
- Anomia argentaria32 sites
- Exogyra (Exogyra) costata32 sites
- Panopea32 sites
- Crassatella vadosa31 sites
- Syncyclonema31 sites
- Arca30 sites
- Bryozoa30 sites
- Pterotrigonia (Scabrotrigonia)30 sites
- Camptonectes bubonis28 sites
- Idonearca capax28 sites
- Modiolus28 sites
- Glycymeris26 sites
- Pleuromya uniformis26 sites
The Paleobiology Database records 728 sites for Lucinoidea, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
194 references- Using GIS to unlock the interactions between biogeography, environment, and evolution in middle and Late Devonian brachiopods and bivalves64
- Work with Thayer collections, Yale Peabody Accession 7112, published, in part, "New perspectives on transitions between ecological-evolutionary subunits in the "type interval" for coordinated stasis", James J Zambito IV, Carlton E Brett, Gordon C Baird, Sarah E Kolbe, Arnold I Miller; Paleobiology38
- Unpublished data33
- Le Jurassique D`Arabie Centrale31
- Palökologie benthischer Faunengemeinschaften und Taxonomie der Bivalven im Jura von Südtunesien26
- The Lower Jurassic Rocks of East Greenland Part 126
- Unpublished data on Cretaceous-Paleocene molluscan assemblages22
- Unpublished data from Kachchh21
- Temperature-related body size change of marine benthic macroinvertebrates across the Early Toarcian Anoxic Event17
- Jurassic Bivalvia and Gastropoda from Tanganyika and Kenya17
- Bivalvos del Pliensbachiense en la Seccion de Almonacid de la Cuba (Cordillera Iberica, Espana)16
- The stratigraphical palaeontology of the Lower Greensand16
Each of the 897 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. 182 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 Lucinoidea
- Source
- Wikipedia/Commons
- Credit
- GrahamBould
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Lucinidae”
- 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 itLucinida through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fleming 1828