Ahrensburg tracksite, Osterwald (Cretaceous of Germany)

Where: Niedersachsen, Germany (52.1° N, 9.6° E: paleocoordinates 42.6° N, 18.5° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cypridea alta formosa other zone, Obernkirchen Member (Bückeberg Formation), Late/Upper Barremian (130.0 - 125.5 Ma)

• ?upper part of member

• bed-level stratigraphic resolution

Environment/lithology: fluvial; bioturbated, fine-grained sandstone

• "a peri-fluvial environment with fine-grained sediments and coal settled in oxbow-lakes and back-swamps, while coarser-grained sedimentary bodies represent channel-fills, natural levees, and crevasse-splay fans"
• "at the base of a 2.1 m thick sandstone layer interbedded within a ca. 23 m thick series of alternating sandstone, mudstone, and claystone rich in plant macrofossils and minor coal seams."; "...large slab of thinly bedded, fine-grained, bioturbated, current ripple-marked sandstone"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by Naumann in 1927

Collection methods: quarrying, surface (in situ), ,

Primary reference: R. Windolf. 1998. Dinosaurierfunde in Niedersachsen [Dinosaur finds in Lower Saxony]. Arbeitskreis Paläontologie Hannover 26:1-7 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 149729: authorized by Matthew Carrano, entered by Matthew Carrano on 23.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia -
Theropoda indet. Marsh 1881 theropod
 Neornithischia -
Ornithopoda indet. Marsh 1881 bird foot dinosaur