Equisetites

Equisetites; Temporal range: Westphalian–Maastrichtian;
	Specimens of E. arenaceus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Subclass:	Equisetidae
Order:	Equisetales
Family:	Equisetaceae
Genus:	†Equisetites; Sternberg, 1833
Type species
	†Equisetites muensteri; Sternberg, 1833
Other species
	†E. aequecaliginosus Weber, 2005; †E. angarensis Gutova et al., 1969; †E. arenaceus von Jaeger, 1864; †E. asiaticus Gutova et al., 1969; †E. carbonarium (Koenig, 1827 [originally Oncylogonatum]); †E. conicus Sternberg, 1833; †E. ectypus Ilyina, 1964; †E. elegans Ilyina et al., 1966; †E. ferganensis Gutova et al., 1969; †E. filus Xu, 2003; †E. glaber Kara-Murza, 1960; †E. glaburus Kara-Murza, 1960; †E. gracilis Marcinkiewicz, Orlowska & Rogalska, 1960; †E. hemingwayi Kidston, 1901; †E. hojedkii Ameri, Khalilizade & Zamani, 2014; †E. inoratus Gutova et al., 1964 and Ilyina, 1964; †E. irregularii Ameri, Khalilizade & Zamani, 2014; †E. latissimus Verbitskaya, 1962; †E. lyelli Allen et al., 1991; †E. keuperina Morton, 1863; †Equishetites langevaginattis Wu, 2008; †E. lateralis Gnaedinger, Villalva & Zavattieri, 2023; †E. magnus Gutova et al., 1964; †E. microrugosus Verbitskaya, 1962; †E. meugeoti (Brongniart, 1828); †E. nathorsti Klaus, 1960; †E. obbatus Verbitskaya, 1962; †E. pabdanaii Ameri, Khalilizade & Zamani, 2014; †E. palustriformis Gutova et al., 1964; †E. platyodon Potonie, 1962; †E. punctatus Gutova et al., 1964; †E. pusillus Villar de Seoane, 2005; †E. sparseii Ameri, Khalilizade & Zamani, 2014; †E. spatulatus Zeiller, 1895; †E. rotundiformis Prosviryakova, 1966; †E. rotundum Kara-Murza, 1958; †E. rotundus Kara-Murza, 1960; †E. subteres Verbitskaya, 1962; †E. suecicus Balme, 1995; †E. variabilis Vinogradova, 1971;
Synonyms
	Bajera Sternberg, 1825; Equisetites mougeotii Wills, 1910; E. arenaceous Schenk emend. Kelber & van Konijnenburg-van Cittert, 1998; Equisetum laterale Gould, 1968; Oncylogonatum Koenig, 1827;

Equisetites is an extinct genus of vascular plants within Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds. The genus was named by Sternberg (1833) and contains at least 40 named species and two unnamed species, with the earliest known species being E. hemingwayi from the Westphalian of Yorkshire, England, though the affinity of this genus to modern Equistaceae is uncertain.

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Equisetites Temporal range: Westphalian–Maastrichtian

Specimens of E. arenaceus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Subclass:	Equisetidae
Order:	Equisetales
Family:	Equisetaceae
Genus:	†Equisetites Sternberg, 1833
Type species
†Equisetites muensteri Sternberg, 1833
Other species
†E. aequecaliginosus Weber, 2005 †E. angarensis Gutova et al., 1969 †E. arenaceus von Jaeger, 1864 †E. asiaticus Gutova et al., 1969 †E. carbonarium (Koenig, 1827 [originally Oncylogonatum]) †E. conicus Sternberg, 1833 †E. ectypus Ilyina, 1964 †E. elegans Ilyina et al., 1966 †E. ferganensis Gutova et al., 1969 †E. filus Xu, 2003 †E. glaber Kara-Murza, 1960 †E. glaburus Kara-Murza, 1960 †E. gracilis Marcinkiewicz, Orlowska & Rogalska, 1960 †E. hemingwayi Kidston, 1901 †E. hojedkii Ameri, Khalilizade & Zamani, 2014 †E. inoratus Gutova et al., 1964 and Ilyina, 1964 †E. irregularii Ameri, Khalilizade & Zamani, 2014 †E. latissimus Verbitskaya, 1962 †E. lyelli Allen et al., 1991 †E. keuperina Morton, 1863 †Equishetites langevaginattis Wu, 2008 †E. lateralis Gnaedinger, Villalva & Zavattieri, 2023 †E. magnus Gutova et al., 1964 †E. microrugosus Verbitskaya, 1962 †E. meugeoti (Brongniart, 1828) †E. nathorsti Klaus, 1960 †E. obbatus Verbitskaya, 1962 †E. pabdanaii Ameri, Khalilizade & Zamani, 2014 †E. palustriformis Gutova et al., 1964 †E. platyodon Potonie, 1962 †E. punctatus Gutova et al., 1964 †E. pusillus Villar de Seoane, 2005 †E. sparseii Ameri, Khalilizade & Zamani, 2014 †E. spatulatus Zeiller, 1895 †E. rotundiformis Prosviryakova, 1966 †E. rotundum Kara-Murza, 1958 †E. rotundus Kara-Murza, 1960 †E. subteres Verbitskaya, 1962 †E. suecicus Balme, 1995 †E. variabilis Vinogradova, 1971
Synonyms
Bajera Sternberg, 1825 Equisetites mougeotii Wills, 1910 E. arenaceous Schenk emend. Kelber & van Konijnenburg-van Cittert, 1998 Equisetum laterale Gould, 1968 Oncylogonatum Koenig, 1827