The damselfly genus Furagrion Petrulevičius et al. (Odonata, Zygoptera) from the early Eocene Fur Formation of Denmark and the dysagrionoid grade
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The damselfly genus Furagrion Petrulevičius et al. (Odonata, Zygoptera) from the early Eocene Fur Formation of Denmark and the dysagrionoid grade. / Archibald, S. Bruce; Ware, Jessica L.; Rasmussen, Jan A.; Sylvestersen, René L.; Olsen, Kent; Simonsen, Thomas J.
In: Zootaxa, Vol. 5278, No. 2, 2023, p. 289-317.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - The damselfly genus Furagrion Petrulevičius et al. (Odonata, Zygoptera) from the early Eocene Fur Formation of Denmark and the dysagrionoid grade
AU - Archibald, S. Bruce
AU - Ware, Jessica L.
AU - Rasmussen, Jan A.
AU - Sylvestersen, René L.
AU - Olsen, Kent
AU - Simonsen, Thomas J.
PY - 2023
Y1 - 2023
N2 - The earliest Eocene odonate genus Furagrion Petrulevičius et al. from the Danish Fur Formation is revised based on eighteen specimens, two of which apparently have been lost since their publication. the holotype of Phenacolestes jutlandicus henriksen, type species of Furagrion, is incomplete and lacks the characters currently used to differentiate species, genera and higher taxa in Odonata. We, therefore, propose that the holotype is set aside and a recently discovered nearly complete Fur Formation fossil is designated as neotype. Furagrion possesses all of the nine wing character states currently used along with head shape for diagnosing the Dysagrionidae; however, Furagrion has a characteristically zygopteran head, not the distinctive head shape of the suborder Cephalozygoptera. We, therefore, treat it as a zygopteran unassigned to family. these nine wing character states appear in different combinations not only in various Zygoptera and Cephalozygoptera, but also in the Frenguelliidae, an Eocene family of Argentina that may represent an unnamed suborder. We recognise these taxa as constituting a dysagrionoid grade, in which these character states appear either convergently or as symplesiomorphies. Furagrionmorsi Zessin is synonymized with Phenacolestes jutlandicus henriksen, syn. nov.and Morsagrion Zessin with Furagrion Petrulevičius, Wappler, Wedmann, Rust, and Nel, syn. nov.
AB - The earliest Eocene odonate genus Furagrion Petrulevičius et al. from the Danish Fur Formation is revised based on eighteen specimens, two of which apparently have been lost since their publication. the holotype of Phenacolestes jutlandicus henriksen, type species of Furagrion, is incomplete and lacks the characters currently used to differentiate species, genera and higher taxa in Odonata. We, therefore, propose that the holotype is set aside and a recently discovered nearly complete Fur Formation fossil is designated as neotype. Furagrion possesses all of the nine wing character states currently used along with head shape for diagnosing the Dysagrionidae; however, Furagrion has a characteristically zygopteran head, not the distinctive head shape of the suborder Cephalozygoptera. We, therefore, treat it as a zygopteran unassigned to family. these nine wing character states appear in different combinations not only in various Zygoptera and Cephalozygoptera, but also in the Frenguelliidae, an Eocene family of Argentina that may represent an unnamed suborder. We recognise these taxa as constituting a dysagrionoid grade, in which these character states appear either convergently or as symplesiomorphies. Furagrionmorsi Zessin is synonymized with Phenacolestes jutlandicus henriksen, syn. nov.and Morsagrion Zessin with Furagrion Petrulevičius, Wappler, Wedmann, Rust, and Nel, syn. nov.
U2 - 10.11646/zootaxa.5278.2.4
DO - 10.11646/zootaxa.5278.2.4
M3 - Journal article
C2 - 37518283
VL - 5278
SP - 289
EP - 317
JO - Zootaxa
JF - Zootaxa
SN - 1175-5326
IS - 2
ER -
ID: 358965375