Piveteauia madagascariensis Lehmann, 1952

Taxonomy

Coelacanth

Kingdom: Animalia
Phylum: Chordata
Class: Coelacanthimorpha
Order: Coelacanthiformes Berg 1937
Family: Whiteiidae Schultze 1993
Genus: Piveteauia
Species: Piveteauia madagascariensis
Author Citation LEHMANN, 1952

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Triassic
Sub Period: None
Epoch: Early
International Age: Dienerian

Stratigraphy

Beaufort Group
Sakamena Formation

Biostratigraphy

Lystrosaurus and Cynognathus Zone
Fish and Ammonite Horizon

Provenance

Acquired by: Purchase/Trade

Location

Ambilobe
Antsiranana Province
Diana Region
Madagascar

• coelacanth
• madagascar
• piveteauia
• triassic

Comments

Taxonomy from Fossilworks.org.

Emended Diagnosis from Clement 1999, p. 234: "Fish of small size, standard length about 13 to 14 cm and maximum body depth about 3 to 3,5 cm. Body shape very elongated. Pelvic fins situated immediately in front of the level of the first dorsal fin (but not connected to the pectoral girdle). Presence of descending processes of the posterior parietal, postparietal and supratemporal. Lachrymojugal very elongated, slightly curved and not anteriorly angled. Palatal surface of the entopterygoid covered with numerous parallel sinuous rows and tiny rounded denticles. Midpart of angular very elevated, presenting a well-developed posterior angle . Ossified parapophyses absent in the anterior part of the notochord and very small under the second dorsal fin, increasing in size as far back as the anterior part of the caudal fin. Ornamentation of the squamation consisting of about 15 well-marked ridges, parallel to the longitudinal axis of the scales."

Identified by oilshale using Clement 1999.

References

J. A. Moy-Thomas. 1935. The coelacanth fishes from Madagascar. Geological magazine 72:213-226

Lehmann, J.-P. (1952): Étude complémentaire des poissons de l’Eotrias de Madagascar. Kungliga Svenska Vetenskaps-akademiens Hangdlingar (4), 2 (6): 1-201; Stockholm.

Gael Clement (1999) The Actinistian (Sarcopterygii) Piveteauia madagascariensis Lehman from the Lower Triassic of Northwestern Madagascar: A Redescription on the Basis of New Material. Journal of Vertebrate Paleontology Vol. 19, No. 2, pp. 234-242 (9 pages).