Machaeraria

via iDigBio · CC0 · via iDigBio. 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
- MachaerariidaePBDB
- Diet
- suspension feederPBDB, for Rhynchonellida
- Life habit
- epifaunalPBDB, for Rhynchonellida
- Motility
- stationaryPBDB, for Rhynchonellida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 20 million years on record.
The record covers at least 419.62 Mya to 399.5 Mya. No occurrence read is dated outside 422.7 Mya to 393.47 Mya.
46 occurrences of Machaeraria on record, most of them in the Devonian. 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
46 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
14 formations
- Garra Formation4
- Windmill Limestone Formation3
- Keyser Limestone Formation3
- Stuart Bay Formation3
- Kalkberg Formation · Helderberg Group3
- Beijuntang Formation2
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The named rock units Machaeraria has been recovered from, largest first. Drawn where the rock is now, not where it formed. 19 occurrences have no formation on record, which is common for older literature.
Machaeraria and its relatives
DevonianWhere Machaeraria and its relatives were recorded in the Devonian.
Found in the same rock
376 taxa- Atrypa26 sites
- Cyrtina26 sites
- Schizophoria23 sites
- Gypidula20 sites
- Howellella20 sites
- Nucleospira18 sites
- Ambocoelia17 sites
- Iridistrophia15 sites
- Protocortezorthis15 sites
- Isorthis14 sites
- Mesodouvillina14 sites
- Ancillotoechia13 sites
- Cymostrophia13 sites
- Dolerorthis13 sites
- Spirigerina supramarginalis13 sites
- Schuchertella12 sites
- Dalejina11 sites
- Leptaena11 sites
- Reticulatrypa11 sites
- Atrypa reticularis10 sites
- Protathyris10 sites
- Skenidioides9 sites
- Anastrophia (Grayina) magnifica8 sites
- Favosites8 sites
The Paleobiology Database records 44 sites for Machaeraria, 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- Lower Devonian (Lochkovian) biostratigraphy and brachiopod faunas, Canadian arctic islands7
- Lower Devonian Gastropoda from the Canadian Arctic Islands6
- Devonian brachiopods from the Quadrithyris Zone (Upper Lochkovian), Canadian arctic archipelago5
- Wenlockian to Pragian brachiopod communities of the northern Canadian Cordillera3
- The Garra Formation (Early Devonian: Late Lochkovian) between Cumnock and Larras Lee, New South Wales, Australia: stratigraphic and structural setting, faunas, and community sequence3
- Marine faunal assemblages in the Siurian-Devonian Keyser Limestone of the central Appalachians3
- The brachiopods of the Lower Devonian Maradana Shale, New South Wales3
- Stratigraphy and Paleontology of the Richfield Springs and Cooperstown Quadrangles, New York3
- Early Devonian brachiopod and trace fossil communitires from southeastern Guangxi2
- Silurian and Lower Devonian brachiopods, structure and stratigraphy of the Green Pond Outlier in southeastern New York2
- Great Basin Lower Devonian Brachiopoda2
- Brachiopods of the Garra Formation (Lower Devonian), Wellington area, New South Wales, Australia: Rhynchonellida, Spiriferida, Terebratulida1
Each of the 46 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 Machaeraria
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Machaeraria 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 itMachaerariidae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cooper 1955