Grossberg Bank
Basic information
Sample name: Grossberg Bank
Sample aka: Laubenheim
Reference: J. J. Brinkkötter and T. Martin. 2015. Small mammals and stratigraphic position of the \"Grossberg-Bank\" (lower Oberrad Formation, MN1, early Miocene) at Laubenheim Quarry in the Mainz Basin, SW Germany, and their implications for early Miocene biostratigraphy. Palåontologische Zeitschrift 89:995-1022 [ER 2395]
Geography
Country: Germany
Coordinate: 49° 57' N, 8° 19' E
Coordinate basis: based on nearby landmark
Formation: Oberrad
Time interval: Early Miocene
Zone: MN1
Age basis: zone
Geography comments: "southeast of the center of Mainz within the districts Mainz-Weisenau, Mainz-Laubenheim, and Mainz-Hechtsheim... in the Laubenheim quarry" (coordinate based on Mainz-Laubenheim)
in "the lower Oberrad Formation... presumably of Aquitanian (Lower Miocene)" based on biostratigraphy of multiple taxa; "uppermost MN1" based on the mammals themselves
in "the lower Oberrad Formation... presumably of Aquitanian (Lower Miocene)" based on biostratigraphy of multiple taxa; "uppermost MN1" based on the mammals themselves
Environment
Substrate: ground surface
Lithology: marl
Habitat comments: "light to brownish gray, unstratified Hydrobia marl... floating cadavers" were "delivered by rivers from the hinterland of the Mainz Basin lagoon" (i.e., the greater environmental context is a lagoon)
Methods
Life forms: rodents,other small mammals
Sampling methods: screenwash,surface
Sample size: 55 specimens
Sampling comments: "Apart from brackish-marine invertebrates and aquatic vertebrates" the sample "yielded a large number of disarticulated bones, mandibles, and teeth of terrestrial vertebrates such as reptiles, birds, and mammals" (lagomorphs, ungulates, and carnivorans are listed but not described)
"The material was collected predominantly on the surface of the fossiliferous bed... a few kilograms of sediment" were collected "from the fossiliferous layer for extraction of microvertebrates" (presumably using screening)
"The material was collected predominantly on the surface of the fossiliferous bed... a few kilograms of sediment" were collected "from the fossiliferous layer for extraction of microvertebrates" (presumably using screening)
Metadata
Sample number: 2589
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-18 12:37:51
Modified: 2017-03-07 08:51:15
Abundance distribution
11 species
3 singletons
total count 55
extrapolated richness: 20.3
Fisher's α: 4.135
geometric series k: 0.7628
Hurlbert's PIE: 0.8300
Shannon's H: 2.0175
Good's u: 0.9468
Each square represents a species. Square sizes are proportional to counts.
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