Les Alleveys 1986
Basic information
Sample name: Les Alleveys 1986

Reference: J. J. Hooker and M. Weidmann. 2007. A diverse rodent fauna from the middle Bartonian (Eocene) of Les Alleveys, Switzerland: snapshot of the early theridomyid radiation. Swiss Journal of Geosciences 100:469-493 [ER 2393]
Country: Switzerland

Coordinate: 46° 39' N, 6° 32' E
Basis of coordinate: based on nearby landmark
Geography comments: "within the commune of La Sarraz... at the western extremity of Mormont" (coordinate based on Le Mormont)
"entirely middle Bartonian... slightly older than Robiac, the reference locality for MP16"; shown on a chart as in between MP15 and MP16 and roughly 38 Ma
Climate and habitat
Substrate: ground surface
Lithology: sandstone
Habitat comments: "red clay alternating with sandy layers with quartz and ferruginous pisoliths. It was from these coarse layers that almost all the fossils were collected"
Life forms: rodents
Sampling methods: screenwash
Sample size: 112
Sampling comments: "one of us (MW) extracted nearly 500 kg of sediment from the fissure (Fig. 1e), emptying it completely. After washing and sieving, this material yielded a total of about 700 teeth and innumerable bone fragments of mammals, rare reptile teeth and numerous teeth of marine fish (pycnodont bony fish and odontaspid sharks), the last reworked from the Cretaceous limestones"
numerous undescribed taxa are listed in Table 1
Sample: 2587
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-17 21:35:00
Modified: 2017-02-17 21:35:00
Abundance distribution
10 species
2 singletons
total count 112
standardised richness: 6.0
Fisher's α: 2.656
geometric series k: 0.6637
Hurlbert's PIE: 0.7550
Shannon's H: 1.6673
Good's u: 0.9825