Glypheoidea
The Glypheoidea, is a group of lobster-like decapod crustaceans which forms an important part of fossil faunas, such as the Solnhofen limestone. These fossils included taxa such as Glyphea, and Mecochirus, mostly with elongated chelipeds. This group of decapods is a good example of a living fossil, or a lazarus taxon, since until their discovery in the 1970s, the group was considered to have become extinct in the Eocene. The superfamily Glypheoidea comprises five families. The two extant species, Neoglyphea inopinata and Laurentaeglyphea neocaledonica, are both in the family Glypheidae.
User:Citron · 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
- GlypheideaPBDB
- Diet
- carnivorePBDB, for Decapoda
- Life habit
- infaunalPBDB
- Motility
- actively mobilePBDB, for Malacostraca
- Vision
- well-developedPBDB, for Malacostraca
Time the record covers
At least 208 million years on record.
The record covers at least 250.8 Mya to 42.6 Mya. No occurrence read is dated outside 251.1 Mya to 37.71 Mya.
311 occurrences of Glypheoidea on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
311 occurrences- Early Triassic1%
- Middle Triassic21%
- Late Triassic5%
- Early Jurassic9%
- Middle Jurassic11%
- Late Jurassic17%
- Early Cretaceous24%
- Late Cretaceous8%
- Paleoceneunder 1%
- Eocene2%
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
82 formations
- Trochitenkalk Formation20
- Atherfield Clay Formation · Lower Greensand Group14
- Grès à Voltzia Formation · Buntsandstein Group12
- Terrain à Chailles Formation12
- Opalinuston Formation8
- Spartan Glacier Formation8
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The named rock units Glypheoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 58 further formations hold fewer occurrences each and are not listed. 102 occurrences have no formation on record, which is common for older literature.
Glypheoidea and its relatives
Early CretaceousWhere Glypheoidea and its relatives were recorded in the Early Cretaceous.
Found in the same rock
1,304 taxa- Glyphea17 sites
- Atherfieldastacus magnus12 sites
- Glyphea regleyana12 sites
- Pseudopemphix albertii12 sites
- Clytiopsis argentoratense11 sites
- Mecochirus11 sites
- Bivalvia10 sites
- Bositra buchi10 sites
- Eryma ventrosum10 sites
- Grammatodon9 sites
- Mecochirus eckerti9 sites
- Planolites9 sites
- Paralitogaster limicola8 sites
- Pinna robinaldina8 sites
- Trachysoma rostrata8 sites
- Ammonoidea7 sites
- Anomia laevigata7 sites
- Astarte7 sites
- Decapoda7 sites
- Eumorphia socialis7 sites
- Hoploparia longimana7 sites
- Liostrea7 sites
- Mecochirus rostratus7 sites
- Meyeria ornata7 sites
The Paleobiology Database records 234 sites for Glypheoidea, 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
120 references- Description des crustacés fossiles de la Haute-Saône et du Haut-Jura13
- Macrurous Decapoda from the Lower Cretaceous of South-Eastern Alexander Island11
- Middle Jurassic lobsters (Crustacea, Decapoda) from Normandy, France10
- The stratigraphy of the Atherfield Clay Formation (Lower Aptian, Lower Cretaceous) at the type and other localities in southern England9
- Die Decapodenkrebse des deutschen Muschelkalks9
- Contribution a l'étude des crustacés décapodes de la période Jurassique9
- Resurrection of Eumorphia von Meyer, 1847 and some taxonomical considerations of other mecochirid lobsters (Crustacea, Decapoda, Mecochiridae)8
- A decapod crustacean assemblage from the Middle Triassic Upper Muschelkalk of Großenlüder (Hessen, Germany)8
- Paläontologische Untersuchungen im unteren Opalinuston der Nordschweiz8
- Crustacés décapodes nouveaux ou peu connus de l'époque Crétacique8
- Notes sur les Crustaces Jurassiques du Bassin Du Jura8
- Krebse aus dem Oberen Muschelkalk von Osthessen und Thüringen. Teil 1- Pseudopemphix albertii (H. v. Meyer, 1840)7
Each of the 311 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. 108 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 Glypheoidea
- Source
- Wikipedia/Commons
- Credit
- User:Citron
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Glypheoidea 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.
The description on this site
- Source
- Wikipedia, “Glypheoidea”
- 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 itGlypheidea through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Winckler 1882