Morgat harbor, Crozon (Ordovician of France)

Where: France (48.2° N, 4.5° W: paleocoordinates 70.1° S, 58.0° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Kermeur Formation, Katian (453.0 - 445.2 Ma)

• "base of Kermeur Formation, Euconochitina tanvillensis (Paris) chitinozoan Zone, early Katian, Upper Ordovician"

•"Biostratigraphic correlations based on trilobites suggest that the base of the Kermeur Formation is coeval with the upper concretion-bearing horizon of the Schistes d’Angers Formation, yielding also asteroids at Saint-Clément-de-la-Place (Fig. 2; Pillet et al., 1997)."

• formation-level stratigraphic resolution

Environment/lithology: shoreface; micaceous, yellow siltstone

• "This assemblage was interpreted as living in a very shallow, quiet nearshore setting (shoreface), typical of a back-coastal barrier, lagoon-like, protected setting (Vidalet al., 2011a, b).
• "Asteroids were collected in beige, micaceous siltstones typical of the base of the early Darriwilian Kermeur Formation."

Size class: macrofossils

Collection methods: "E.N.K. Clarkson collection, Université de Bretagne occidentale, Brest (France)," LPB

Primary reference: D. B. Blake, T. E. Guensberg, and B. Lefebvre. 2016. New Early Paleozoic Asterozoa (Echinodermata) from the Armorican Massif, France, and the Western United States. Annales de Paléontologie 102:161-181 [P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 216841: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 28.12.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Asteroidea
 Euaxosida - Palasterinidae
Petraster crozonensis n. sp.
Petraster crozonensis n. sp. Blake et al. 2016 sea star