Intertrappean Beds

The Intertrappean Beds are a Late Cretaceous geologic formation in India. The beds are found as interbeds between Deccan Traps layers. Indeterminate theropod and pterosaur remains have been recovered from the formation, as well as dinosaur eggs.[1][2] The mammal genera Deccanolestes, Sahnitherium, Bharattherium, and Kharmerungulatum have been recovered from it as well.[3] A rich plant flora is known from the formation.

Intertrappean Beds
Stratigraphic range: Maastrichtian
TypeGeological formation
Unit ofDeccan Traps
OverliesInfratrappean Beds
Location
RegionAndhra Pradesh
CountryIndia

Paleobiota

Lepidosaurs
Genus Species Location Stratigraphic position Material Notes Images
Indophis I. sahnii Naskal microvertebrate site Vertebrae

Mammals
Genus Species Location Stratigraphic position Material Notes Images
Bharattherium B. bonapartei Kisalpuri
Deccanolestes D. hislopi Naskal microvertebrate site Molars, calcanea, astralgi, humerus, ulna
D. robustus Naskal microvertebrate site "Dental material and an astragalus"
D. narmadensis Kisalpuri
Kharmerungulatum K. vanvaleni Kisalpuri
Dakshina D. jederi Naskal microvertebrate site Teeth Sudamericid
Sahnitherium S. rangapurensis Rangapur microvertebrate site Upper Molar

Flora
Genus Species Location Stratigraphic position Material Notes Images
Phyllanthocarpon P. singpurensis Fruit, member of Phyllanthaceae.[4]
Connaroxylon C. dimorphum Wood, affinities with Connaraceae.[5]
Palmoxylon P. dindoriensis Wood, member of palm subfamily Coryphoideae.[6]
Hyphaeneocarpon Fruit, member of palm tribe Borasseae.[7]
Rhizopalamoxylon Palm rhizome, close affinities to Nypa.[8]
Palmocarpon Fruit, member of palm tribe Cocoseae.[9]
Pantocarpon Fruit, member of Torricelliaceae[10]

See also

Footnotes
  1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  2. Barrett, P.M., Butler, R.J., Edwards, N.P., & Milner, A.R. Pterosaur distribution in time and space: an atlas. p61-107. in Flugsaurier: Pterosaur papers in honour of Peter Wellnhofer. 2008. Hone, D.W.E., and Buffetaut, E. (eds). Zitteliana B, 28. 264pp.
  3. "Archived copy". Archived from the original on 2011-06-07. Retrieved 2008-05-04.CS1 maint: archived copy as title (link)
  4. Kapgate, Dashrath; Manchester, Steven R.; Stuppy, Wolfgang (2017-06-01). "Oldest fruit of Phyllanthaceae from the Deccan Intertrappean Beds of Singpur, Madhya Pradesh, India" (PDF). Acta Palaeobotanica. 57 (1): 33–38. doi:10.1515/acpa-2017-0004. ISSN 2082-0259.
  5. Baas, Pieter; Manchester, Steven R.; Wheeler, Elisabeth A.; Srivastava, Rashmi (2017-02-13). "Fossil wood with dimorphic fibers from the Deccan Intertrappean Beds of India – the oldest fossil Connaraceae?". IAWA Journal. 38 (1): 124–133. doi:10.1163/22941932-20170162. ISSN 0928-1541.
  6. Khan, Mahasin Ali; Roy, Kaustav; Hazra, Taposhi; Mahato, Sumana; Bera, Subir (2020-01-01). "A New Coryphoid Palm from the Maastrichtian-Danian Sediments of Madhya Pradesh and its Palaeoenvironmental Implications". Journal of the Geological Society of India. 95 (1): 75–83. doi:10.1007/s12594-020-1388-1. ISSN 0974-6889.
  7. Matsunaga, Kelly K S; Manchester, Steven R; Srivastava, Rashmi; Kapgate, Dashrath K; Smith, Selena Y (2019-06-21). "Fossil palm fruits from India indicate a Cretaceous origin of Arecaceae tribe Borasseae". Botanical Journal of the Linnean Society. 190 (3): 260–280. doi:10.1093/botlinnean/boz019. ISSN 0024-4074.
  8. Kathal, P. K.; Srivastava, Rashmi; Mehrotra, R. C.; Alexander, P. O. (2017-03-29). "Rhizopalmoxylon nypoides – a new palm root from the Deccan Intertrappean beds of Sagar, Madhya Pradesh, India". Journal of Earth System Science. 126 (3): 35. doi:10.1007/s12040-017-0815-1. ISSN 0973-774X.
  9. Manchester, Steven R.; Bonde, Suresh D.; Nipunage, Dinesh S.; Srivatava, Rashmi; Mehrotra, Rakesh C.; Smith, Selena Y. (2016-07-19). "Trilocular Palm Fruits from the Deccan Intertrappean Beds of India". International Journal of Plant Sciences. 177 (7): 633–641. doi:10.1086/687290. ISSN 1058-5893.
  10. Manchester, Steven R.; Kapgate, Dashrath K.; Patil, Sharadkumar P.; Ramteke, Deepak; Matsunaga, Kelly K.S.; Smith, Selena Y. (2019-10-23). "Morphology and Affinities of Pantocarpon Fruits (cf. Apiales: Torricelliaceae) from the Maastrichtian Deccan Intertrappean Beds of Central India". International Journal of Plant Sciences. 181 (4): 443–451. doi:10.1086/706856. ISSN 1058-5893.

References
  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
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