PBDB Collection

Chander Nagar-Gohpur Road cutting, Itanagar (Pliocene to of India)

Where: Arunachal Pradesh, India (27.1° N, 93.7° E: paleocoordinates 26.0° N, 93.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kimin Formation (Siwalik Group), Late/Upper Pliocene to Late/Upper Pliocene (3.6 - 0.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; shale

Size class: macrofossils

Preservation: mold/impression, adpression

Collection methods: Repository: Museum of Palaeobotany–Palynology, Department of Botany, University of Calcutta, India

Primary reference: M. A. Khan, R. A. Spicer, T. E. V. Spicer and S. Bera. 2016. Occurrence of Shorea Roxburgh ex C. F. Gaertner (Dipterocarpaceae) in the Neogene Siwalik forests of eastern Himalaya and its biogeography during the Cenozoic of Southeast Asia. Review of Palaeobotany and Palynology 233:236-254 [B. Allen/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224427: authorized by Bethany Allen, entered by Bethany Allen on 03.03.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Dracontomelum cf. mangiferum² Dracontomelum cf. mangiferum² CUH/PPL/IB7/45, leaf
Knema
-	Knema cf. glaucescens² Knema cf. glaucescens² CUH/PPL/IB7/35, leaf
Dicotyledoneae
Myrtales - Combretaceae	Combretum sahnii² Combretum sahnii² Antal and Awasthi 1993 bushwillow
Angiospermae
Sapindales - Anacardiaceae	Mangifera someshwarica² Mangifera someshwarica² Lakhanpal and Awasthi 1984 mango
Sapindales - Burseraceae	Canarium cf. bengalense² Canarium cf. bengalense² Roxburgh 1832 CUH/PPL/IB7/44, leaf
Sapindales - Meliaceae	Dysoxylum raptiensis² Dysoxylum raptiensis² Prasad and Awasthi 1996 mahogany
Malvales - Dipterocarpaceae	Dipterocarpus siwalicus², Shorea chandernagarensis n. sp., Shorea nepalensis Dipterocarpus siwalicus² Lakhanpal and Guleria 1987 Shorea chandernagarensis n. sp. Khan et al. 2016 CUH/PPL/C/f/7 (holotype), fruiting calyx Shorea nepalensis Konomatsu and Awasthi 1999 CUH/PPL/C/8, leaf
Fabales - Fabaceae	Pongamia siwalika², Dalbergia cf. rimosa², "Millettia siwalika" = Millettia siwalica², Millettia cf. extensa² Pongamia siwalika² Awasthi and Lakhanpal 1990 legume Dalbergia cf. rimosa² legume CUH/PPL/IB7/47, leaf "Millettia siwalika" = Millettia siwalica² Prasad 1994 legume Millettia cf. extensa² Bentham 1876 legume CUH/PPL/IB7/38, leaf
Rosales - Rhamnaceae	Berchemia siwalica² Berchemia siwalica² Tripathi et al. 2002 buckthorn
Fagales - Fagaceae	Quercus cf. lamellosa², Quercus semecarpifolia² Quercus cf. lamellosa² Smith 1814 oak CUH/PPL/IB7/46, leaf Quercus semecarpifolia² Smith 1814 oak
Malpighiales - Clusiaceae	Calophyllum suraikholaensis² Calophyllum suraikholaensis² Awasthi and Prasad 1990
Malpighiales - Euphorbiaceae	Macaranga cf. denticulata², Croton cf. caudatus² Macaranga cf. denticulata² Blume 1826 spurge CUH/PPL/IB7/41, leaf Croton cf. caudatus² Geiseler 1807 rushfoil CUH/PPL/IB7/43, leaf
Gentianales - Apocynaceae	Chonemorpha miocenica² Chonemorpha miocenica² Prasad and Awasthi 1996 dogbane
Poales - Poaceae	Bambusa siwalika² Bambusa siwalika² Awasthi and Prasad 1990 bamboo
Laurales - Lauraceae	Litsea cf. salicifolia², Actinodaphne palaeoangustifolia², Actinodaphne cf. obovata², Lindera cf. pulcherrima² Litsea cf. salicifolia² laurel CUH/PPL/IB7/36, leaf Actinodaphne palaeoangustifolia² Antal and Awasthi 1993 laurel Actinodaphne cf. obovata² Blume 1851 laurel CUH/PPL/IB7/39, leaf Lindera cf. pulcherrima² Hooker 1886 laurel CUH/PPL/IB7/34, leaf
Polypodiopsida
Cyatheales - Polypodiidae	Cyathea siwalika n. sp.¹ Cyathea siwalika n. sp.¹ Bera et al. 2014 scaly tree fern CUH/PPL/IB7/TF/1 (holotype), stem fragment

¹Bera et al. 2014; ²Khan et al. 2011