After Parker, 1982, “The Tree of Life”, and Grimaldi & Engel, 2005
<==o †“Xyelotomidae” Rasnitsyn, 1968 [incl. †Protenthredinidae Hong, 1982] |-- †Xyelotoma nigricornis Rasnitsyn, 1968; U.Jur. CAs. |-- †Xyelocerus admirandus Rasnitsyn, 1968; U.Jur. CAs. |-- †Pseudoxyela heteroclita Rasnitsyn, 1968; U.Jur. CAs. |--o †Undatoma Rasnitsyn, 1977; ?U.Jur.-L.Cret. NEAs., L.Cret. WEu. | |-- †U. dahurica Rasnitsyn, 1977 | |?- ?†U. undurgensis Rasnitsyn, 1990 | |?- ?†U. taksha Rasnitsyn, 1990 | |-- †U. rudwickensis Rasnitsyn & Jarzembowski, 1998 | |-- †U. stigmatica Rasnitsyn & Jarzembowski, 1998 | `-- †U. bicolor Rasnitsyn & Jarzembowski, 1998 |?- †Liaotoma linearis Ren et al., 1995; L.Cret. EAs. |-- †Dahurotoma robusta Rasnitsyn, 1990; L.Cret. NEAs. |-- †Leridatoma pulcherrima Rasnitsyn & Ansorge, 2000; L.Cret. SWEu. |-- †Davidsmithia suni (Hong, 1982) Pagliano & Scaramozzino, 1990 [†Protenthredo suni Hong, 1982 (non Protenthredo Pongracz, 1982, a genus of Tenthredinid wasps); Thomasia Pagliano & Scaramozzino, 1990]; U.Jur.-L.Cret. EAs. `-- †Pseudoxyelocerus bascharagensis Nel, Petrulevicius & Henrotay, 2004
Reference(s):
- Nel, A., Petrulevicius, J. F. & Henrotay, M., 2004: New Early Jurassic sawflies from Luxembourg: the oldest record of Tenthredinoidea (Hymenoptera: “Symphyta”).
–Acta Palaeontologica Polonica: Vol. 49, #2, pp. 283-288