Calamitales
Calamitaceae is an extinct family of equisetalean plants related to the modern horsetails, known from the Carboniferous and Permian periods. Some members of this family like Arthropitys attained tree-like stature, with heights over 15 metres (49 ft), with extensive underground rhizomes. They were largely found in wetland environments.

Woudloper · 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
- CalamitopsidaPBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 77 million years on record.
The record covers at least 318.7 Mya to 241.464 Mya. No occurrence read is dated outside 330.3 Mya to 237 Mya.
21 occurrences of Calamitales on record, most of them in the Carboniferous. 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
21 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
3 formations
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The named rock units Calamitales has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.
Calamitales and its relatives
CarboniferousWhere Calamitales and its relatives were recorded in the Carboniferous.
Found in the same rock
93 taxa- Botryopteris8 sites
- Astromyelon7 sites
- Cordaites7 sites
- Sphenophyllum7 sites
- Amyelon radicans6 sites
- Anachoropteris6 sites
- Arthropitys6 sites
- Arthroxylon6 sites
- Calamostachys6 sites
- Diaphorodendron vasculare6 sites
- Etapteris6 sites
- Heterangium6 sites
- Lepidocarpon6 sites
- Pachytesta6 sites
- Lyginopteris oldhamia5 sites
- Myeloxylon5 sites
- Ankyropteris4 sites
- Bothrodendron4 sites
- Bowmanites4 sites
- Conostoma4 sites
- Lagenostoma ovoides4 sites
- Lepidophylloides4 sites
- Lepidostrobus4 sites
- Medullosa anglica4 sites
The Paleobiology Database records 12 sites for Calamitales, 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
5 references- Coal-ball floras of the Namurian-Westphalian of Europe13
- Pennsylvanian-Age Calamitean Cones, Elater-Bearing Spores, and Associated Vegetative Organs4
- An Early Permian plant assemblage from the Taiyuan Formation of northern China with compression/impression and permineralized preservation2
- Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an Appendix on Mexico and Central America.1
- Lycopsid Stems and Roots and Sphenopsid Fructification and Stems from the Upper Freeport Coal of Southeastern Ohio1
Each of the 21 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. 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 Calamitales
- Source
- Wikipedia/Commons
- Credit
- Woudloper
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Calamitales 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.
The description on this site
- 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 itCalamitopsida through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Eichwald 1852