Monoclimacis

Not Monoclimacis. This is Ptychodera flava Eschscholtz, 1825, a relative.
Billy Bensted-Smith · CC BY-NC 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
- MonograptidaePBDB
- Diet
- suspension feederPBDB, for Graptoloidea
- Life habit
- planktonicPBDB, for Graptoloidea
- Motility
- passively mobilePBDB, for Graptoloidea
- Vision
- blindPBDB, for Graptolithina
Time the record covers
At least 17 million years on record.
The record covers at least 440.5 Mya to 422.7 Mya. No occurrence read is dated outside 443.1 Mya to 393.47 Mya.
50 occurrences of Monoclimacis on record, most of them in the Silurian. 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
50 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
- Xiushan Formation · Wengxiang Group5
- Pengjiayuan Formation3
- Rusne Formation · Varmia Group3
- Motol Formation2
- Restevo Subsuite Formation2
- Yuanbaoshan Formation2
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The named rock units Monoclimacis 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.
Monoclimacis and its relatives
SilurianWhere Monoclimacis and its relatives were recorded in the Silurian.
Found in the same rock
215 taxa- Monograptus15 sites
- Pristiograptus14 sites
- Monograptus priodon8 sites
- Cyrtograptus7 sites
- Oktavites spiralis4 sites
- Cardiola3 sites
- Leonaspis3 sites
- Petalolithus3 sites
- Retiolites geinitzianus3 sites
- Stomatograptus3 sites
- Streptograptus3 sites
- Striispirifer3 sites
- Strophochonetes3 sites
- ? Onoetodus <1>2 sites
- Acanthograptus2 sites
- Acernaspis2 sites
- Atrypoidea2 sites
- Bohemograptus bohemicus2 sites
- Brachiopoda2 sites
- Bumastus2 sites
- Cheirurus (Cheirurus) insignis2 sites
- Climacograptus2 sites
- Conularia2 sites
- Coremagraptus2 sites
The Paleobiology Database records 26 sites for Monoclimacis, 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
16 references- Correlation of the Silurian rocks of China18
- Upper SiIurian-Lower Devonian Chitinozoa from the subsurface of southeastern Poland7
- On the Graptolite Schists Formation (Silurian–Lower Devonian) in the Carpatho–Balkanides of eastern Serbia5
- New data on the stratigraphy and correlation of the South - East Baltic Wenlockian and Ludlovian (Silurian)4
- Sheinwoodian (Silurian) conodonts and graptolites from NE Anti-Atlas, Morocco2
- Animal and plant communities of Podolia2
- New materials of Silurian gastropods from SW. China2
- Le domaine de l'Anti-Atlas au Maroc2
- Lowermost Silurian Graptolites of Montagne Noire, France1
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)1
- Lower Silurian to Lower Devonian communities from the Armorican Massif (western France) and Artois (northern France)1
- Uppermost Ordovician to lower Silurian Graptolite Biostratigraphy of the Wye Valley, Central Wales1
Each of the 50 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. 4 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 Ptychodera flava Eschscholtz, 1825
- Source
- GBIF
- Credit
- Billy Bensted-Smith
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow 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 itMonograptidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.