Risleten Quarry tracksite: Aptian, Switzerland
collected by M. Weh, C. Meyer, B. Thüring 2000
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Porifera indet.
Grant 1836
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Mollusca indet.
Linnaeus 1758
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Bivalvia
- Ostreida
- Ostreidae
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Ostreidae indet.
Rafinesque 1815
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Ostracoda
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Ostracoda indet.
Latreille 1802
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unclassified
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Echinodermata indet.
Klein 1754
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Reptilia
- Iguanodontipodidae
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Iguanodontipus billsarjeanti n. sp.
Meyer and Thüring 2003
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3 individuals | |||||||||
| trackways TR1–3 (200+ specimens) | ||||||||||
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Tubothalamea
- Miliolida
- Hauerinidae
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Quinqueloculina sp.
d'Orbigny 1826
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Tubothalamea
- Miliolida
- Miliolidae
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Miliolidae indet.
Ehrenberg 1839
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| see common names | ||||||||||
Geography
| Country: | Switzerland | State/province: | Nidwalden |
| Coordinates: | 47.0° North, 8.5° East (view map) | ||
| Paleocoordinates: | 31.6° North, 18.5° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Aptian | 10 m.y. bin: | Cretaceous 3 |
| Key time interval: | Aptian | ||
| Age range of interval: | 121.4 - 113 m.y. ago |
Stratigraphy
| Formation: | Schrattenkalk | Member: | Upper | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: middle lower Aptian to middle upper Aptian; upper part of formation | |||||
Lithology and environment
| Primary lithology: | bioturbation packstone |
| Secondary lithology: | planar lamination wackestone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: "The lower and upper parts of the section are made up of cross-bedded grain- to packstone that contain a large amount of miliolinid foraminfera, echinoderms, and rudist bivalves (Requiena). The grainstones often contain a large number of orbitolinid foraminifera (Palorbitolina lenticularis). The finer grained pack- to wackestones yield dasycladacean algae (Keller, 1983 and personal observations). 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." | |
| Environment: | peritidal |
| Geology comments: "shallow water...with traces of emersion" | |
Taphonomy
| Modes of preservation: | mold/impression,trace |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | medium |
| Associated major elements: | many |
| Disassociated major elements: | many |
| Fragmentation: | none |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),peel or thin section,observed (not collected) | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | M. Weh, C. Meyer, B. Thüring | Collection dates: | 2000 |
| Collection method comments: discovered by geologist Markus Weh while swimming in Lake Lucerne | |||
Metadata
| Also known as: | Beckenried | ||
| Database number: | 90131 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2009-07-08 12:44:27 | Last modified: | 2021-11-18 09:26:17 |
| Access level: | the public | Released: | 2009-07-08 12:44:27 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 68760. | 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] |
Secondary references:
| 68758 | I. Díaz-Martínez, X. Pereda-Suberbiola, F. Pérez-Lorente and J. I. Canudo. 2015. Ichnotaxonomic review of large ornithopod dinosaur tracks: temporal and geographic implications. PLoS 10(2):e0115477:1-50 [M. Carrano/M. Carrano] | |
| 30215 | ETE | C. A. Meyer and B. Thüring. 2003. Dinosaurs of Switzerland. Comptes Rendus Palevol 2:103-117 [M. Carrano/M. Carrano/M. Carrano] |
| 78655 | C. Pascual-Arribas, N. Hernández-Medrano, P. Latorre-Macarrón and E. Sanz-Pérez. 2009. El icnogénero Iguanodontipus en el yacimiento de “Las Cuestas I” (Santa Cruz de Yanguas, Soria, España) [The ichnogenus Iguanodontipus in the “Las Cuestas I” locality (Santa Cruz de Yanguas, Soria, Spain)]. Studia Geologica Salmanticensia 45(2):105-128 [M. Carrano/M. Carrano] |