Mud (Bottom section) LMH-4 (Triassic of India)

Where: Himachal Pradesh, India (32.0° N, 78.0° E: paleocoordinates 45.0° S, 60.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lower Limestone Member (Mikin Formation), Dienerian (250.5 - 251.2 Ma)

• Faunas described within "Local Maximal Horizons", which constitute a small group of samples/beds; LMH4 includes sample MUD52 (Ware et al. 2018)

• group of beds-level stratigraphic resolution

Environment/lithology: limestone and shale

Size class: macrofossils

Collected in 2008-9

• Repository - Paläontologisches Institut und Museum der Universität Zürich, Switzerland (PIMUZ)

Primary reference: D. Ware, H. Bucher, T. Brühwiler and L. Krystyn. 2018. Dienerian (Early Triassic) ammonoids from Spiti, Himachal Pradesh, India. Fossils and Strata 63:179-241 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 217564: authorized by Alex Dunhill, entered by Bethany Allen on 15.02.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ceratitida - Ophiceratidae
Ghazalaites roohii Ware and Bucher 2018 ceratite
 Ceratitida - Gyronitidae
Gyronites bullatus n. sp. Ware and Bucher 2018 ceratite
PIMUZ30846 (holotype)
Gyronites frequens Waagen 1895 ceratite
 Ceratitida - Proptychitidae
Dunedinites cf. magnumbilicatus Kiparisova 1961 ceratite
Proptychites oldhamianus Waagen 1895 ceratite
 Ceratitida - Mullericeratidae
Ussuridiscus ensanus Krafft 1909 ceratite