Koilabas (Miocene of Nepal)

Where: Nepal (27.7° N, 82.5° E: paleocoordinates 21.9° N, 82.5° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Lower Churia Formation (Siwalik Group), Miocene (23.0 - 5.3 Ma)

• member-level stratigraphic resolution

Environment/lithology: fluvial; sandstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: M. Prasad. 2008. Angiospermous fossil leaves from the Siwalik foreland basins and their palaeoclimatic implications. The Palaeobotanist 57:177-215 [B. Allen/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 222898: authorized by Bethany Allen, entered by Bethany Allen on 28.10.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Dicotyledoneae
 Ericales - Ebenaceae
Diospyros darwajensis Prasad et al. 1990
Diospyros koilabasensis n. sp. Prasad 1990
Diospyros pretoposia Prasad 1990
 Myrtales - Myrtaceae
Syzygium miocenicum Prasad and Prakash 1984 bush cherry
Syzygium miooccidentalis Prasad et al. 1999 bush cherry
 Myrtales - Combretaceae
Combretum sahnii Antal and Awasthi 1993 bushwillow
Anogeissus eosericea Prasad and Prakash 1984
Terminalia panandhroensis Lahkanpal and Guleria 1978
Terminalia koilabasensis n. sp. Prasad 1990
Terminalia siwalica Prasad 1990
 Myrtales - Lythraceae
Lagerstroemia mioparviflora Dwivedi et al. 2006 crepe myrtle
Lagerstroemia siwalica Prasad 1994 crepe myrtle
Lagerstroemia eomicrocarpa Dwivedi et al. 2006 crepe myrtle
Angiospermae
 Zingiberales - Marantaceae
Donax kasauliensis Prasad and Dwivedi 2008
 Laurales - Lauraceae
Cinnamomum mioinuctum Prasad 1990 cinnamon
 Violales - Flacourtiaceae
Gynocardia mioodorata Prasad et al. 2004
Ryparosa prekunstelri Prasad 1990
Flacourtia seriaensis Prasad et al. 1997
Flacourtia koilabasensis n. sp. Prasad and Dwivedi 2008
 Solanales - Solanaceae
Datura miocenica Prasad 1990 nightshade
 Proteales - Sabiaceae
Sabia eopaniculata Prasad 1994
Sabia siwalica Dwivedi et al. 2006
 Proteales - Proteaceae
Helicia eoerretica Prasad et al. 1999
 Lamiales - Oleaceae
 Lamiales - Verbenaceae
Vitex siwalica Prasad 1990 chaste tree
Vitex prenegundo Prasad 1990 chaste tree
 Gentianales - Rubiaceae
Morinda siwalica Prasad 1994 coffee
Randia miowallichii Prasad 1990 indigoberry
Randia miouncaria Prasad and Dwivedi 2007 indigoberry
Canthium siwalica Prasad and Dwivedi 2007 coffee
Nauclea seriaensis Prasad and Dwivedi 2007 coffee
 Gentianales - Apocynaceae
Tabernaemontana precoronaria Prasad 1990 dogbane
Alstonia nepalensis Prasad and Dwivedi 2007 dogbane
Carissa koilabasensis n. sp. Prasad 1994 dogbane
Alyxia koilabasensis n. sp. Prasad and Dwivedi 2007 dogbane
 Gentianales - Loganiaceae
Gaertnera siwalica Prasad 1990
 Dipsacales - Caprifoliaceae
Lonicera mioquinquelocularis Prasad 1990 honeysuckle
 Dilleniales - Dilleniaceae
Dillenia palaeoindica Prasad and Prakash 1984
 Sapindales - Anacardiaceae
Bouea premacrophylla Antal and Awasthi 1993 cashew
Bouea koilabasensis n. sp. Prasad 1994 cashew
Swintonia palaeoschwenckii Prasad and Awasthi 1996 cashew
Tapirira chorkholiense Prasad 1994 cashew
Mangifera someshwarica Lakhanpal and Awasthi 1984 mango
Dracontomelon seriaensis Prasad et al. 1997 cashew
 Sapindales - Meliaceae
Aglaia nepalensis Prasad et al. 1999 mahogany
Chloroxylon palaeoswietenia Prasad 1990 mahogany
 Sapindales - Rutaceae
Murraya khariensis Lakhanpal and Guleria 1982 citrus
Atalantia miocenica Prasad 1994 citrus
Euodia koilabasensis n. sp. Prasad 1994 citrus
 Sapindales - Simaroubaceae
Brucea darwajensis Prasad et al. 1999
 Sapindales - Sapindaceae
Filicium koilabasensis n. sp. Prasad 1994 soapberry
Nephelium palaeoglabrum Prasad et al. 1997 soapberry
Arytera seriaensis Prasad and Dwivedi 2008 soapberry
Euphorea nepalensis Prasad 1994 soapberry
Paranephelium seriaensis Prasad and Dwivedi 2008 soapberry
Otophora miocenica Prasad 1994 soapberry
 Malvales - Dipterocarpaceae
Isoptera siwalica Prasad et al. 1999
Shorea eutrapizifolia Prasad et al. 1999
Shorea miocurtisii Prasad and Dwivedi 2008
Hopea mioglabra Prasad 1994
Dipterocarpus koilabasensis n. sp. Prasad et al. 1999
Dipterocarpus siwalicus Lakhanpal and Guleria 1987
 Rosales - Rhamnaceae
Berchemia nepalensis Prasad and Dwivedi 2008 buckthorn
Berchemia siwalica Tripathi et al. 2002 buckthorn
Zizyphus miocenicus Prasad 1994 buckthorn
 Fabales - Polygalaceae
Qualea siwalica Prasad and Dwivedi 2008 milkwort
Securidaca miocenica Prasad et al. 1997 milkwort
 Fabales - Fabaceae
Millettia ovatus Tripathi et al. 2002 legume
Millettia imlibasensis Prasad et al. 1999 legume
Millettia miobrandisiana Prasad 1994 legume
Millettia palaeomanii Dwivedi et al. 2006 legume
Millettia siwalica Prasad 1994 legume
Millettia koilabasensis n. sp. Prasad 1990 legume
Entada palaeoscandens Antal and Awasthi 1993 legume
Albizia siwalica Prasad 1994 legume
Ormosia robustoides Prasad 1990 legume
Cassia miosiamea Prasad 1994 legume
Cassia nepalensis Prasad 1990 legume
Cassia neosophora Prasad 1994 legume
Dalbergia miosericea Prasad 1990 legume
Dalbergia siwalika Prasad 1994 legume
Dalbergia miovolubilis Prasad et al. 1997 legume
Dalbergia eucultrata Prasad et al. 1999 legume
Pongamia kathgodamensis Prasad et al. 2004 legume
Samanea siwalica Prasad 1994 legume
Canavalia siwalica Dwivedi et al. 2006 jack-beans
Cynometra palaeoiripa Prasad et al. 2004 legume
Cynometra siwalika Awasthi and Prasad 1990 legume
 Malpighiales - Clusiaceae
Mesua tertiara Lakhanpal 1964
Kayea kalagarhensis Prasad 1994
Garcinia nepalensis Prasad et al. 1999
 Malpighiales - Euphorbiaceae
Phyllanthus koilabasensis n. sp. Prasad et al. 1999 spurge
Phyllanthus mioreticulatus Prasad et al. 2004 spurge
Antidesma miocenica Prasad and Dwivedi 2007 spurge
Antidesma siwalica Prasad et al. 1999 spurge
 Cucurbitales - Anisophylleaceae
Anisophyllea siwalica Prasad and Awasthi 1996
 Rosids - Moraceae
Artocarpus nepalensis Prasad and Awasthi 1996 mulberry
Ficus eomysorensis Tripathi et al. 2002 fig
Ficus retusoides Prasad 1990 fig
Ficus precunea Lakhanpal 1968 fig
Ficus nepalensis Prasad 1990 fig
 Magnoliales - Annonaceae
Mitrephora miocenica Prasad et al. 1997 custard apple
Melodorum jarwaensis Tripathi et al. 2002 custard apple
Polyalthia palaeosumatrana Tripathi et al. 2002 custard apple
Fissistigma mioelegans Prasad et al. 1999 custard apple
Fissistigma senii Lakhanpal 1969 custard apple
Goniothalamus siwalicus Prasad et al. 1997 custard apple
Anona koilabasensis n. sp. Prasad et al. 1999 custard apple
Uvaria siwalika Prasad 1994 custard apple
Miliusa mioveluntina Prasad et al. 1997 custard apple
Miliusa siwalica Prasad et al. 1999 custard apple