Ichnogenus: Mesosaurichnium SILVA, SEDOR & FERNADES, 2009
Etymology: Trace fossil of Mesosauridae.

Ichnospecies: natans SILVA, SEDOR & FERNADES, 2009
Etymology: Latin, natans, 'to swim'.

Holotype: MCN.P.293, footprints 1 and 2

Locality: Sucal Mineracao Ltda limestone quarry, Parana State, South Brazil.

Horizon: Irati Formation, Pessa Dois Group.

Biostratigraphy:

Age: Sakmanian Stage, Rotilegendes Epoch, Early Permian- Kazanian substage, Capitanian Stage, Upper Guadelupian Subepoch, Middle Zechstein Epoch, Late Middle Permian.

Material: Traces.

Paratype:

MCN.P.293a-5, MCN.P427-2, MCN.P.774-4: Traces.

Referred material:

MCN.P.203b, P.203c, P.851, P.852a, P.852b, P.852c, P. 852d, P.853, P.854: Traces.

 

Locality: Codapar limestone quarry, Guapirama, Parana State, South Brazil.

Horizon: Irati Formation, Pessa Dois Group.

Biostratigraphy:

Age: Sakmanian Stage, Rotilegendes Epoch, Early Permian- Kazanian substage, Capitanian Stage, Upper Guadelupian Subepoch, Middle Zechstein Epoch, Late Middle Permian.

Material:

MCN.P. 293a, P.760, P.761, P.762, P.763a, P.763b, P.764, P.765, P.766, P.767, P.774: Tracks.

 

Locality: Limestone quarry, Portelßndia, Goias, Parana State, South Brazil.

Horizon: Irati Formation, Pessa Dois Group.

Biostratigraphy:

Age: Sakmanian Stage, Rotilegendes Epoch, Early Permian- Kazanian substage, Capitanian Stage, Upper Guadelupian Subepoch, Middle Zechstein Epoch, Late Middle Permian.

Material:

MCN.P.262, P.266: Tracks.

 

Locality: Limestone quarry, Perolßndia, Parana State, South Brazil.

Horizon: Irati Formation, Pessa Dois Group.

Biostratigraphy:

Age: Sakmanian Stage, Rotilegendes Epoch, Early Permian- Kazanian substage, Capitanian Stage, Upper Guadelupian Subepoch, Middle Zechstein Epoch, Late Middle Permian.

Material:

MCN.P.426, P.427, P.428: Tracks.