Archaeocalamitaceae

Archaeocalamitaceae Temporal range: Middle Devonian–Lower Permian PreꞒ Ꞓ O S D C P T J K Pg N
Archaeocalamites
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Subclass:	Equisetidae
Order:	Equisetales
Family:	† Archaeocalamitaceae Koidz.
Genera
† Archaeocalamites † Paragiridia † Radiatus † Scrobiculatus

Archaeocalamitaceae is a family of extinct sphenopsids related to horsetails. Archaeocalamite fossils have been found in Siberia, Poland, and Brazil. The fossils date to the Middle Devonian-Carboniferous, lower Carboniferous (Dinantian), and the lower Permian respectively. ^{[1] [2] [3]} Given the distance of the fossil discoveries, archaeocalamites may have had a subcosmopolitan distribution.^{[ citation needed ]}

Taxonomy

Possible relationships archaeocalamites has with other sphenopids is shown below. ^[4]

	?†Ibyka †Pseudobornia ursina †Sphenophyllales †Archaeocalamitaceae †Calamitaceae Equisetaceae

References

1. LESZCZYŃSKI, Krzysztof; WAKSMUNDZKA, Marta (2015-01-01). "ŚRODOWISKA SEDYMENTACJI I PALINOFACJE KREDY DOLNEJ W OTWORACH WIERTNICZYCH CIECHOCINEK IG 3, MSZCZONÓW IG 1 I KORABIEWICE PIG 1" . Biuletyn Państwowego Instytutu Geologicznego. 457 (457): 1–14. doi:10.5604/08676143.1113252 (inactive 11 July 2025). ISSN   0867-6143.
2. Faculty of Mining and Geology, Belgrade, Serbia; Radonjić, Miloš (2020-10-26). "Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)". Geologia Croatica. 73 (3): 131–142. doi: 10.4154/gc.2020.13 .
3. Boardman, Daiana Rockenbach; Iannuzzi, Roberto; Dutra, Tânia Lindner (2016-10-01). "A new genus of Sphenopsida from the Lower Permian of the Paraná Basin, Southern Brazil" . Review of Palaeobotany and Palynology. 233: 44–55. Bibcode:2016RPaPa.233...44B. doi:10.1016/j.revpalbo.2016.07.004. ISSN   0034-6667.
4. "Systematics of the Sphenophyta". ucmp.berkeley.edu. Retrieved 2023-08-12.