Where: Toliara, Madagascar (22.9° S, 44.6° E: paleocoordinates 44.4° S, 29.6° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Lower Member (Isalo II Formation), Ladinian to Ladinian (242.0 - 228.0 Ma)
• Unit is known as either the Makay Formation or "Isalo II"; basal part of unit. This formation is of uncertain age and is generally considered late Ladinian or early Carnian; Langer et al. (2000) support a Carnian age based upon palynology and their interpretation of the phylogenetic position of the rhynchosaur material.
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Collected by Flynn et al. in the 1990s; reposited in the FMNH
• UA, University of Antananarivo
Primary reference: J. J. Flynn, J. M. Parrish, B. Rakotosamimanana, L. Ranivoharimanana, W. F. Simpson and A. R. Wyss. 2000. New traversodontids (Synapsida, Eucynodontia) from the Triassic of Madagascar. Journal of Vertebrate Paleontology 20(3):422-427 [R. Butler/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 96283: authorized by Richard Butler, entered by Richard Butler on 31.05.2010, edited by Emma Dunne, Eren Tasimov and Terri Cleary
Creative Commons license: CC BY (attribution)
Taxonomic list
| Osteichthyes | |
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Traversodontidae "nov. sp. 2"2, Traversodontidae "nov. sp. 1"2, Menadon besairiei n. gen. n. sp., Dadadon isaloi n. gen. n. sp.
Menadon besairiei n. gen. n. sp. Flynn et al. 2000 cynodont UA 10601, skull and mandibles; FMNH PR 2104, paired mandibles
Dadadon isaloi n. gen. n. sp. Flynn et al. 2000 cynodont UA 10606, partial skull. UA 10605, edentulous rostrum
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| Reptilia | |
Kongonaphon kely n. gen. n. sp.4
Kongonaphon kely n. gen. n. sp.4 Kammerer et al. 2020 ornithodiran UA 10618 is a partial skeleton composed of a right maxilla, distal portion of the humerus, right femur (missing the distal tip), proximal portions of the right and left tibia, proximal portion of the fibula, problematic elongate elements that may represent two metatarsals, meta- tarsal II articulated to a pedal phalanx, an additional phalanx, an isolated caudal vertebra, and indeterminate skeletal fragments
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Mambachiton fiandohana n. gen. n. sp.5
Mambachiton fiandohana n. gen. n. sp.5 Nesbitt et al. 2023 archosaur Holotype UA 8-25-97-132, an articulated series of anterior to posterior cervical vertebrae and osteoderms, anterior cervical vertebra neural arch fragment, cervical rib, and disarticulated osteoderms. A right partial postfrontal was directly associated with the holotype.
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