Where: Diana, Madagascar (13.1° S, 48.9° E: paleocoordinates 44.7° S, 41.0° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Middle Sakamena Formation (Sakamena Group), Dienerian (252.2 - 251.3 Ma)
• Middle Sakamena Group "Bed 5"
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, concretionary siliciclastic sediments
Size class: macrofossils
Preservation: concretion, replaced with calcite
Collected by B. Kummel in 1961; reposited in the MCZ
Collection methods: surface (in situ),
Primary reference: K. S. Thomson. 1982. An Early Triassic hybodont shark from northern Madagascar. Postilla 186:1-16 [M. Clapham/P. Vazquez/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 117105: authorized by Matthew Clapham, entered by Matthew Clapham on 15.09.2011, edited by Priscilla Vazquez
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
| |
Osteichthyes | |
Watsonulus eugnathoides Piveteau 1935 ray-finned fish |