Where: Jordan (31.5° N, 35.6° E: paleocoordinates 15.4° S, 36.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nimra Member (Ma'in Formation), Dienerian (250.5 - 251.2 Ma)

• In the Iranian Elikah Formation, Claraia aurita is recorded in the Gyronites zone (lower Dienerian; Brühweiler et al. 2008), above C. intermedia and C. radialis beds (Nakazawa 1977). In the Werfen Formation of the Dolomites (Italy), C. bittneri is recorded within the Claraia aurita beds (Leonardi 1960), which corresponds to Claraia aurita group subzone (middle Siusi Member) representing the last Alpine Claraia subzone (Broglio Loriga et al. 1983, 1990). The upper boundary of the Claraia aurita group subzone corresponds to a δ13C negative anomaly, which occurs at about 130 m above the base of Werfen Fm in the Bulla section, within the Dienerian obliqua Zone (Horacek et al. 2007; Foster et al. 2017). The lower boundary of the C. aurita group subzone corresponds to the disappearance of C. clarai, which subzone, corresponding to the lower Siusi Member, has been considered late Griesbachian – earliest Dienerian in age (Broglio Loriga et al. 1983). Therefore, C. bittneri suggests an early-middle Dienerian age.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified, fine-grained sandstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: J. H. Powell, A. Nicora, M. C. Perri, R. Rettori, R. Posenato, M. H. Stephenson, A. Masri, L. M. Borlenghi, and V. Gennari. 2019. Lower Triassic (Induan to Olenekian) conodonts, foraminifera and bivalves from the Al Mamalih area, Dead Sea, Jordan: constraints on the P-T boundary. Rivista Italiana di Paleontologia e Stratigrafia 125:147-181 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200000: authorized by Matthew Clapham, entered by Matthew Clapham on 23.02.2019

Creative Commons license: CC BY (attribution)