Platysella lallyi HEYLER & POPLIN, 1983

By oilshale (edited)

• January 4, 2017

Taxonomy

Kingdom: Animalia
Phylum: Chordata
Class: Actinopteri Cope 1871
Order: Aeduelliformes
Family: Aeduellidae Romer, 1945
Genus: Platysella
Species: Platysella lallyi
Author Citation HEYLER & POPLIN, 1983

Geological Time Scale

Eon: Phanerozoic
Era: Paleozoic
Period: Permian
Sub Period: None
Epoch: Early

Stratigraphy

Muse Formation
Lally Member

Provenance

Acquired by: Purchase/Trade

Location

Lally
Saint-Léger-du-Bois
Saône-et-Loire, Bourgogne
France

• autun
• france
• permian
• platysella
• tff-oilshale-ch623

Comments

Taxonomy from Poplin & Dutheil 2005

Diagnosis for the genus from Poplin & Dutheil 2005, p. 21 (translated from French by oilshale): "Aeduellidae with very high head and body, dorsal contour of body evenly rounded: Ratio of total length to maximum height = 2.25. Accordingly: Mouth and maxilla short, preoperculum and opercular apparatus vertical, cleithrum high and short, body laterally flattened, ventral lobe of caudal fin elongate and lateral flank scales higher than others. Orbit smaller than in other Aeduellidae. Dermosphaenoticus touching nasalia. Canal supraorbitalis penetrating dermopteroticus in form of pit line. Postero-inferior angle of maxilla not conspicuous. Suture between operculum and suboperculum straight. Probably only one branchiostegus ray. Mandible high along entire length. Dorsal fin inserted posteriorly. Base of anal fin terminating near caudal fin."

Line drawing from Poplin & Dutheil 2005, p. 19 (scale 2 cm):

Identified by oilshale.

References:
Poplin C. & Dutheil D. B. 2005. — Les Aeduellidae (Pisces, Actinopterygii) carbonifères etpermiens:systématique et étude phylogénétique préliminaire. Geodiversitas27 (1) :17-33.
Heyler, D. & Poplin, C. (1983) Actinopterygiens du Stephanien de Montceau-les-Mines (Saone-et-Loire, France). Palaeovertebrata 1983, 13, pp. 33-50.