Monodechenella Stumm 1953
Creators: name: Vanderlaan, Tegan A.
name: Ebach, Malte C.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Trilobita
Proetida
Proetidae
Monodechenella

description: Genus Monodechenella Stumm 1953
1953 Dechenella (Monodechenella) Stumm; p. 123. 1963 Conophillipsia Roberts; p. 25.
1967 Conophillipsia; Hahn & Hahn, p. 327. 1970 Conophillipsia; Osmólska, p.13–25.
1972 Conophillipsia; Hahn & Hahn, p. 382. 1978 Conophillipsia; Kobayashi & Tachibana, p. 262. 1984 Conophillipsia; Engel & Morris, p. 23–64. 1990 Conophillipsia; Schraut, p. 36.
1993 Conophillipsia; Hahn & Hahn, p. 16–21, tab. 2–3. 1994 Monodechenella; Lieberman; p. 137–138. 1994 Conophillipsia; Owens, p. 214–216.
1996 Conophillipsia; Schraut, p. 21.
2006 Monodechenella; Owens, p. 119–143.
Type species. Monodechenella macrocephala (Hall 1861).
Diagnosis. See Lieberman (1994: 137).
Remarks. The genus Conophillipsia Roberts 1963 is herein considered a junior synonym of Monodechenella Stumm 1953, following the arguments presented by Lieberman (1994) and Owens (1994, 2006). Conophillipsia was described as a new genus based on its age, only being found in the Carboniferous (Hahn & Hahn 1993; Hahn & Brauckmann 1993; Engel & Morris 1997). However, the striking similarities to Monodechenella species convincingly places Conophillipsia species within the generic concept of Monodechenella. These features include a broad, flat proetid-like cephalon, with a multisegmented phillipsiid-like pygidium (Lieberman 1994; Owens 1994). Owens (1994) has discussed the possibility of pseudo-extinctions in proetid trilobites from the late Devonian, which circumvents the biostratigraphic arguments for a new genus.
Species included. Monodechenella antonovi (Weber 1937), Monodechenella aryssica (Weber 1937), Monodechenella ataica (Weber 1937), Monodechenella bleibergensis (Schraut 1996), Monodechenella boteroi (Caster & Richter in Richter & Richter 1950), Monodechenella breviceps (Mitchell 1918), Monodechenella curvimarginata (Hall & Clarke 1888), Monodechenella decisegmenta (Kobayashi & Tachibana 1978), Monodechenella grandis (Etheridge Jr. 1892b), Monodechenella halli (Stumm 1953), Monodechenella kazakensis (Weber 1937), Monodechenella koizumii (Kaneko 1983), Monodechenella legrandsmithi Lieberman 1994, Monodechenella longa (Weber 1937), Monodechenella macrocephala (Hall 1861), Monodechenella magna (Hahn & Hahn 1972), Monodechenella meisteri (Weber 1937), Monodechenella morganensis (Mitchell 1918), Monodechenella multicostata (Weber 1937), Monodechenella paucicostata (Weber 1937), Monodechenella sichuanensis (Lee 1978), Monodechenella sonculica (Weber 1937), Monodechenella speciosa (Engel & Morris 1984), Monodechenella subquadrata (Engel & Morris 1984), Monodechenella subtriangularis (Engel & Morris 1984).
Age and distribution. Mid Devonian to Late Viséan in Australia, Austria, Japan and Russia (Engel & Morris 1984; Owens 1994; Schraut 1996).
description: Published as part of Vanderlaan, Tegan A. & Ebach, Malte C., 2015, A review of the Carboniferous and Permian trilobites of Australia, pp. 1-56 in Zootaxa 3926 (1) on pages 18-19, DOI: 10.11646/zootaxa.3926.1.1, http://zenodo.org/record/288002