Hills W-NW of Andranomamy (Jurassic of Madagascar)

Where: Mahajanga, Madagascar (16.5° S, 47.1° E: paleocoordinates 23.9° S, 25.2° E)

• coordinate estimated from map

When: Isalo IIIb Formation (Isalo Group), Bathonian (168.3 - 166.1 Ma)

• "Facies Mixte Dinosauriens"

Environment/lithology: marine; sandstone and siltstone

• "This subunit is about 190 m thick and consists of alternating, variegated sandstones and siltstones arranged in cross-bedding layers, calcareous paves and multicoloured claystone banks".

Size class: macrofossils

Collected in 2003

• MSNM V: collection of fossil vertebrates of the Museo di Storia Naturale di Milano

Primary reference: C. Dal Sasso and G. Pasini. 2003. First record of pterosaurs (Diapsida, Archosauromorpha, Pterosauria) in the Middle Jurassic of Madagascar. Atti della Societa Italiana di Scienze Naturali e del Museo Civico di Storia Naturale in Milano 144:281-296 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92016: authorized by Richard Butler, entered by Richard Butler on 27.10.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Pterosauria -
Rhamphorhynchoidea indet.
Rhamphorhynchoidea indet. Plieninger 1901 pterosaur
MSNM V5170, 5171, 5172, 5173, four isolated teeth (two morphotypes)
 Theropoda -
Theropoda indet.
Theropoda indet. Marsh 1881 theropod
 Saurischia -
Sauropoda indet.
Sauropoda indet. Marsh 1878 sauropod
 Crocodylia -
Crocodylia indet.
Crocodylia indet. Owen 1842 crocodilian
One osteoderm and several teeth
 Loricata -
? Mesosuchia indet.
? Mesosuchia indet. Huxley 1875 crocodilian
Teeth