Combe du Be (Jurassic of Switzerland)

Also known as CBE; near Glovelier village

Where: Jura, Switzerland (47.3° N, 7.2° E: paleocoordinates 38.3° N, 16.1° E)

• coordinate stated in text

When: Banné Member (Reuchenette Formation), Kimmeridgian (157.3 - 152.1 Ma)

• dated from the Cymodoce ammonite zone (late early Kimmeridgian)

• bed-level stratigraphic resolution

Environment/lithology: coastal; limestone

• The Banné Marls consist of fossiliferous marly limestones rich in bivalves, gastropods, brachiopods, echinoderms and cephalopods, as well as remains of vertebrates such as crocodylomorphs, turtles and fishes representing a diverse coastal marine biocenosis [7]. Tropidemys langii is the most common turtle taxon in this layer [9]. The new turtle material presented herein was found at the base of the Banné Marls, just above the hardground (Fig. 2).

Size class: macrofossils

Collected by I. Raselli in 2014, 2016

Collection methods: surface (in situ), mechanical,

• The material presented herein was found in two times. A first limestone block was collected in 2014 by the first author. It contained the fragmentary remains of a shell (some costals and two peripherals), a partial scapula and a fragment of the basicranium. Two years later, new turtle material was recovered at the exact same spot in the outcrop. This turned out to be a near complete shell with some elements of the appendicular and axial skeleton (see below), and a poorly preserved fragment of a costal. One of the peripherals found in 2014 belongs to the near complete shell found in 2016 and was replaced during preparation. This confirms that all of this material was associated in the field.

•material deposited at: MJSN, Jurassica Museum (formerly Musée jurassien des sciences naturelles), Porrentruy, Switzerland

Primary reference: I. Raselli and J. Anquetin. 2019. Novel insights into the morphology of Plesiochelys bigleri from the early Kimmeridgian of Northwestern Switzerland. bioRxiv preprint 1-32 [E. Vlachos/E. Vlachos]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200138: authorized by Evangelos Vlachos, entered by Evangelos Vlachos on 20.03.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Testudinata - Plesiochelyidae
Plesiochelys bigleri
Plesiochelys bigleri Puntener et al. 2017 turtle
MJSN CBE-0001, shell fragments including articulated and isolated costals, a peripheral, and a partial scapula; MJSN CBE-0002, a partial basicranium with the left otic chamber and columella auris; MJSN CBE-0003, a near complete shell with the left femur, right pubis, a cervical vertebra, and a caudal vertebra.