Also known as Beckenried
Where: Nidwalden, Switzerland (47.0° N, 8.5° E: paleocoordinates 31.6° N, 18.5° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Upper Member (Schrattenkalk Formation), Aptian (125.0 - 113.0 Ma)
• middle lower Aptian to middle upper Aptian; upper part of formation
• bed-level stratigraphic resolution
Environment/lithology: peritidal; bioturbated packstone and wackestone
•The trackbearing surface is a highly bioturbated packstone (biomicrite). Thin sections show that it is largely composed of miliolinid foraminifera (Quinqueloculina), recrystallized mollusc fragments, and sponge spiculae. Peloids, ostracods, oyster fragments, some echinoderms, and angular quartz grains are also present. The footprints are infilled by a wackestone with a high number of sponge spicules oriented parallel to the bedding plane and some miliolinid foraminifera. The texture reveals a cryptalgal fabric. The filling is finely laminated; toward the top, birds eye forming vugs can be observed."
Size class: macrofossils
Preservation: mold/impression, trace
Collected by M. Weh, C. Meyer, B. Thüring in 2000
Collection methods: surface (in situ), peel or thin section,
• discovered by geologist Markus Weh while swimming in Lake Lucerne
Primary reference: C. A. Meyer and B. Thüring. 2003. The first iguanodontid dinosaur tracks from the Swiss Alps (Schrattenkalk Formation, Aptian). Ichnos 10(2–4):221-228 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 90131: authorized by Matthew Carrano, entered by Matthew Carrano on 08.07.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Tubothalamea | |
Quinqueloculina sp. d'Orbigny 1826 | |
Miliolidae indet. Ehrenberg 1839 | |
unclassified | |
Porifera indet. Grant 1836 | |
Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod | |
unclassified | |
Mollusca indet. Linnaeus 1758 | |
Bivalvia | |
Ostreidae indet. Rafinesque 1815 oyster | |
Reptilia | |
"Iguanodontipus billsarjeanti n. sp." = Caririchnium billsarjeanti
"Iguanodontipus billsarjeanti n. sp." = Caririchnium billsarjeanti Meyer and Thüring 2003 ornithopod trackways TR1–3 (200+ specimens)
| |
unclassified | |
Echinodermata indet. Klein 1754 |