Long Logs (UCMP V82042, PF178) (Triassic of the United States)

Where: Navajo County, Arizona (34.8° N, 109.9° W: paleocoordinates 10.5° N, 48.4° W)

• coordinate estimated from map

When: Sonsela Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• Approximate level of the basal Rainbow Forest bed of the Sonsela Member, about 11 to 12 m below Flattops Sandstone 1; originally referred to as lower Petrified Forest Member by Long & Murry (1995)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by UCMP in 1981-1985; reposited in the UCMP

Primary reference: R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 93232: authorized by Richard Butler, entered by Richard Butler on 08.01.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli - Metoposauridae
"Buettneria perfecta" = Anaschisma browni
"Buettneria perfecta" = Anaschisma browni Branson 1905 tetrapod
UCMP, plate fragments
Reptilia
 Pseudosuchia - Stagonolepididae
Paratypothorax sp., "Stagonolepis wellesi" = Calyptosuchus wellesi
Paratypothorax sp. Long and Ballew 1985 aetosaur
Plates
"Stagonolepis wellesi" = Calyptosuchus wellesi Long and Ballew 1985 aetosaur
UCMP 126853, 126895, 126896, paramedian plates
 Phytosauria - Parasuchidae
Leptosuchus sp. Case 1922 archosaur
UCMP 126985, 126729, 126982, 126984, 126986, squamosals. UCMP 3408, mandibular symphysis
Leptosuchus crosbiensis Case 1922 archosaur
UCMP 126745, left squamosal