Lakshmi River (Miocene of Bhutan)

Where: Bhutan (26.9° N, 92.0° E)

• Paleocoordinates: 18.0° N, 91.6° E (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Siwalik Group, Middle Miocene (16.0 - 11.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: MLK College, Balrampur, Uttar Pradesh, India

Primary reference: M. Prasad and P. P. Tripathi. 2000. Plant megafossils from the Siwalik sediments of Bhutan and their climatic significance. Biological Memoirs 26(1):6-19 [B. Allen/B. Allen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 223595: authorized by Bethany Allen, entered by Bethany Allen on 17.11.2021

Creative Commons license: CC0 (CC0)

Taxonomic list

• Many of the new species identified here are poorly described, with no type specimens allocated
Show authors, comments, and common names
unclassified
  -
Diplodiochus tertiarum1, Trioma tertiarum1, Hemigyrosa miocenica1
Angiospermae
 Magnoliales - Annonaceae
Mitrephora siwalika
Mitrephora siwalika Antal and Awasthi 1993 custard apple
 Magnoliales - Magnoliaceae
Michelia bhutanensis n. sp.2
Michelia bhutanensis n. sp.2 Srivastava and Tripathi 2019 magnolia
 Rosales - Rhamnaceae
Zizyphus sabnii1, Zizyphus bhutanensis1
Zizyphus sabnii1 buckthorn
 Fabales - Fabaceae
Millettia koilabasensis, Butea siwalicus1
Millettia koilabasensis Prasad 1990 legume
 Malpighiales - Clusiaceae
Kayea miofloribunda n. sp.1, Calophyllum bhutanensis1, Calophyllum siwalicus n. sp.1
Kayea miofloribunda n. sp.1 Srivastava and Ranjan 2019
Calophyllum siwalicus n. sp.1 Srivastava and Ranjan 2019
 Sapindales - Sapindaceae
Erioglossum mioedule1, Harpullia tertiarum1
 Sapindales - Meliaceae
Toona siwalica
Toona siwalica Awasthi and Lakhanpal 1990 mahogany
 Sapindales - Anacardiaceae
Buchanania tertiarum1, Gluta sahnii1
Gluta sahnii1 cashew
 Malvales - Malvaceae
Sterculia miocenica1
Sterculia miocenica1 tropical chestnut
 Malvales - Dipterocarpaceae
Dipterocarpoxylon parabaudii, Vateria palaeocanaliculata1, Dipterocarpus siwalicus, Hopenium kalagarhensis
Dipterocarpus siwalicus Lakhanpal and Guleria 1987
Hopenium kalagarhensis Prasad and Prakash 1987
 Violales - Flacourtiaceae
Gynocardia mioodorata1
Gynocardia mioodorata1 Prasad et al. 2004
Dicotyledoneae
 Myrtales - Combretaceae
Combretum miocenicum n. sp.
Combretum miocenicum n. sp. Prasad and Tripathi 2000 bushwillow
Bt. 42 (holotype)
1Srivastava and Tripathi 2018; 2Srivastava and Tripathi 2019