Onthea, Rajmahal Hills (Jurassic of India)
Where: Jharkhand, India (25.1° N, 87.7° E: paleocoordinates 41.1° S, 41.9° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Rajmahal Formation, Late/Upper Jurassic (161.5 - 145.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial; lithology not reported
Size class: microfossils
Primary reference: R. N. Lakhanpal, H. K. Maheshwari, and N. Awasthi. 1976. A Catalogue of Indian Fossil Plants. 1-318 [B. Allen/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 224706: authorized by Bethany Allen, entered by Bethany Allen on 30.03.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Sphenopteridae | |
|
Sphenopteris sp. Sternberg 1825
Sphenopteris rajmahalensis Sahni and Rao 1934 | |
| unclassified | |
|
| |
| Cycadopsida | |
"cf. Nilssonia sp." = Nilsonia, "Anomozamites fissus" = Nilssonia fissa, Nilssonia princeps, Taeniopteris sp., Taeniopteris spatulata, Taeniopteris ensis
"cf. Nilssonia sp." = Nilsonia Brongniart 1825 cycads
"Anomozamites fissus" = Nilssonia fissa Feistmantel 1879 cycads
Nilssonia princeps Oldham and Morris 1862 cycads
Taeniopteris sp. Brongniart 1828 cycads
Taeniopteris spatulata McClelland 1850 cycads
Taeniopteris ensis Oldham 1863 cycads | |
Beaniopsis rajmahalensis n. gen. n. sp., Cycadites rajmahalensis
Beaniopsis rajmahalensis n. gen. n. sp. Ganju 1944 cycads
Cycadites rajmahalensis Oldham 1863 cycads | |
| Danaeopsis rajmahalensis | |
"Danaeopsis rajmahalensis n. sp." = Morrisia rajmahalensis
"Danaeopsis rajmahalensis n. sp." = Morrisia rajmahalensis Feistmantel 1877 | |
| Ontheodendron florinii | |
"Ontheodendron florinii n. gen. n. sp." = Cycadophytites florini
"Ontheodendron florinii n. gen. n. sp." = Cycadophytites florini Sahni and Rao 1933 | |
| unclassified | |
"Gymnospermae indet." = Pinophyta
"Gymnospermae indet." = Pinophyta Reveal 1996 | |
Ontheanthus polyandra n. gen. n. sp., Bennetticarpus sp., cf. Cycadolepis sp., Pterophyllum rajmahalense, "Macrotaeniopteris lata" = Pterophyllum princeps, Pterophyllum medlicottianum, "Zamites proximus" = Pterophyllum footeanum, "Nilssonia morrisiana" = Pterophyllum morrisianum, Ptilophyllum sp., "Ptilophyllum cutchense" = Ptilophyllum cutchense, "Palaeozamia cutchensis" = Ptilophyllum cutchense, "Palaeozamia affinis n. sp." = Ptilophyllum cutchense, "Ptilophyllum acutifolium" = Ptilophyllum acutifolium, "Palaeozamia acutifolium" = Ptilophyllum acutifolium, Ptilophyllum tenerrimum n. sp., Rajmahalia paradoxa, Sahnioxylon rajmahalense, Dictyozamites hallei n. sp., Dictyozamites sahnii n. sp., "Dictyozamites indica" = Dictyozamites indicus, Dictyozamites feistmantelii, Ontheostrobus sessilis n. gen. n. sp.
Ontheanthus polyandra n. gen. n. sp. Ganju 1944
Bennetticarpus sp. Harris 1932
cf. Cycadolepis sp. Saporta 1875
Pterophyllum rajmahalense Morris 1863
"Macrotaeniopteris lata" = Pterophyllum princeps Oldham and Morris 1862
Pterophyllum medlicottianum Oldham and Morris 1863
"Zamites proximus" = Pterophyllum footeanum Feistmantel 1879
"Nilssonia morrisiana" = Pterophyllum morrisianum Oldham 1863
Ptilophyllum sp. Morris 1840
"Ptilophyllum cutchense" = Ptilophyllum cutchense Morris 1840
"Palaeozamia cutchensis" = Ptilophyllum cutchense Morris 1840
"Palaeozamia affinis n. sp." = Ptilophyllum cutchense Morris 1840
"Ptilophyllum acutifolium" = Ptilophyllum acutifolium Morris 1840
"Palaeozamia acutifolium" = Ptilophyllum acutifolium Morris 1840
Ptilophyllum tenerrimum n. sp. Feistmantel 1877
Rajmahalia paradoxa Sahni and Rao 1934
Sahnioxylon rajmahalense Sahni 1932
Dictyozamites hallei n. sp. Sahni and Rao 1933
Dictyozamites sahnii n. sp. Gupta and Sharma 1968
"Dictyozamites indica" = Dictyozamites indicus Feistmantel 1876
Dictyozamites feistmantelii Bose and Zeba-Bano 1978
Ontheostrobus sessilis n. gen. n. sp. Ganju 1944 | |
|
Stachyotaxus sampathkumaranii n. sp. Rao 1964 | |
Strobilites ontheaensis n. sp.
Strobilites ontheaensis n. sp. Ganju 1947 | |
Elatocladus sp., "Palissya conferta" = Elatocladus conferta
Elatocladus sp. Halle 1913 podocarp
"Palissya conferta" = Elatocladus conferta Feistmantel 1877 podocarp | |
| Equisetopsida | |
|
Brachyphyllum sp. Brongniart 1828
Brachyphyllum mamillare Brongniart 1828
Brachyphyllum expansum Sternberg 1876 | |
| Polypodiopsida | |
"Equisetites rajmahalensis" = Equisetum rajmahalense, Equisetites sp.
"Equisetites rajmahalensis" = Equisetum rajmahalense Oldham and Morris 1863 horsetail
Equisetites sp. Sternberg 1833 | |
|
Marattiopsis macrocarpa Oldham and Morris 1863 | |
"Cladophlebis indica" = Todites indicus
"Cladophlebis indica" = Todites indicus Oldham and Morris 1862 | |
|
Gleichenia bosahii Pant and Srivastava 1977
Gleichenia rewahensis Feistmantel 1882 | |