Orthograptus
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
- OrthograptinaePBDB
- 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 37 million years on record.
The record covers at least 459.7 Mya to 422.7 Mya. No occurrence read is dated outside 486.85 Mya to 419.62 Mya.
274 occurrences of Orthograptus on record, most of them in the Ordovician. 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
274 occurrences- Ordovician88%
- Silurian12%
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
84 formations
- Wufeng Formation32
- Phi Kappa Formation32
- Irene Bay Formation13
- Road River Formation12
- Descon Formation12
- YinGan Formation11
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The named rock units Orthograptus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 60 further formations hold fewer occurrences each and are not listed. 31 occurrences have no formation on record, which is common for older literature.
Orthograptus and its relatives
OrdovicianWhere Orthograptus and its relatives were recorded in the Ordovician.
Found in the same rock
857 taxa- Climacograptus102 sites
- Dicellograptus77 sites
- Glyptograptus56 sites
- Dicranograptus34 sites
- Diplograptus33 sites
- Amplexograptus29 sites
- Pseudoclimacograptus21 sites
- Glossograptus18 sites
- Didymograptus17 sites
- Nemagraptus17 sites
- Lonchodomas15 sites
- Illaenus14 sites
- Remopleurides13 sites
- Cryptograptus11 sites
- Lasiograptus11 sites
- Reteograptus11 sites
- Sowerbyella11 sites
- Cryptolithus10 sites
- Lingula10 sites
- Monograptus10 sites
- Paraorthograptus10 sites
- Ampyx9 sites
- Cyclopyge9 sites
- Dalmanella9 sites
The Paleobiology Database records 206 sites for Orthograptus, 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
90 references- Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho-a graptolite zone reference section32
- Upper Ordovician graptolites from the Cape Phillips Formation, Canadian Arctic Islands13
- Stratigraphic Summary of the Southwestern Region of China13
- Ordovician, Silurian, and Devonian biostratigraphy of east-central Alaska13
- Taxonomy, evolution, and biostratigraphy of the Orthograptus quadrimucronatus species group (Ordovician, Graptolithina)12
- Early Silurian Graptolites from Southeastern Alaska and their correlation with graptolitic sequences in North America and the Arctic12
- Graptolites from the Qilang and Yingan formations (Caradoc, Ordovician) of Kalpin, western Tarim, Xinjiang, China9
- Regional stratigraphic tables of the north western China region: Volume of NinXia Province8
- Summary of regional geology of Hu''nan Province, China7
- Regional stratigraphic table of Eastern China, Zhejiang Province7
- Revision of the Zone 13 graptolite biostratigraphy in the Marathon, Texas, standard succession and its bearing on Upper Ordovician graptolite biogeography6
- Correlation of the Silurian rocks of China5
Each of the 274 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. 78 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 Orthograptus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Orthograptus was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itOrthograptinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Lapworth 1873)