Rangapur microvertebrate site: Late/Upper Maastrichtian, India
collected by R. S. Rana 1986, 1995-1998
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
||||||||||
Osteoglossum deccanensis
|
||||||||||
Anthracoperca bhatiai
|
Kapur and Khosla 2019 | |||||||||
Mulleripollis bolpurensis
|
Wilson Mantilla et al. 2022 | |||||||||
Incrotonipollis neyvelii
|
Wilson Mantilla et al. 2022 | |||||||||
Pteridopsida
|
||||||||||
Cyathidites australis
Couper 1953
|
Wilson Mantilla et al. 2022 | |||||||||
Angiospermae
- Poales
- Typhaceae
|
||||||||||
Sparganiaceaepollenites sp.
Thiergart 1937
|
Wilson Mantilla et al. 2022 | |||||||||
Chondrichthyes
- Myliobatiformes
- Dasyatidae
|
||||||||||
Dasyatis sp.
Rafinesque 1810
|
||||||||||
Chondrichthyes
- Myliobatiformes
- Rhombodontidae
|
||||||||||
Rhombodus levis
(Cappetta and Case 1975)
|
||||||||||
Chondrichthyes
- Myliobatiformes
- Myliobatidae
|
||||||||||
Igdabatis sigmodon
Cappetta 1972
|
||||||||||
Osteichthyes
|
||||||||||
Osteichthyes indet.
Huxley 1880
|
Rana 2000 | |||||||||
Actinopteri
- Lepisosteiformes
- Lepisosteidae
|
||||||||||
Lepisosteus indicus
|
||||||||||
Actinopteri
- Perciformes
- Serranidae
|
||||||||||
Serranidae indet.
Swainson 1839
|
||||||||||
Actinopteri
- Tetraodontiformes
- Eotrigonodontidae
|
||||||||||
Stephanodus lybicus
(Zittel 1888)
|
||||||||||
Eotrigonodon sp.
Weiler 1929
|
||||||||||
Actinopteri
- Ambassidae
|
||||||||||
Dapalis sp.
Gistl 1848
|
||||||||||
Dapalis erici
|
Kapur and Khosla 2019 | |||||||||
Actinopteri
- Aulopiformes
- Enchodontidae
|
||||||||||
Enchodus sp.
Agassiz 1835
|
||||||||||
Enchodus ferox
Leidy 1855
|
||||||||||
Actinopteri
- Aulopiformes
- Ichthyotringidae
|
||||||||||
Apateodus sp.
Woodward 1901
|
||||||||||
Actinopteri
- Clupeiformes
- Clupeoidei
|
||||||||||
Clupeidae indet.
Cuvier 1817
|
||||||||||
Actinopteri
- Osteoglossiformes
- Notopteridae
|
||||||||||
Notopterus nolfi
|
||||||||||
Actinopteri
- Osteoglossiformes
- Osteoglossidae
|
||||||||||
Scleropages intertrappus
|
||||||||||
Actinopteri
- Pycnodontiformes
- Pycnodontidae
|
||||||||||
Pycnodus lametae
Woodward 1908
|
||||||||||
Amphibia
- Temnospondyli
|
||||||||||
Pelobatidae indet.
Lataste 1879
|
||||||||||
= Lissamphibia indet.
Haeckel 1866
|
Rana 2000 | |||||||||
Reptilia
- Anguidae
|
||||||||||
Anguidae indet.
Gray 1825
|
||||||||||
Reptilia
|
||||||||||
Boidae indet.
Gray 1825
|
||||||||||
= Serpentes indet.
Linnaeus 1758
|
Rana 2000 | |||||||||
Reptilia
- Agamidae
|
||||||||||
Agama sp.
Daudin 1802
|
Rage et al. 2020 | |||||||||
Reptilia
- Scincidae
|
||||||||||
Eumeces sp.
Wiegmann 1834
|
Rage et al. 2020 | |||||||||
Reptilia
- Crocodyliformes
|
||||||||||
? Brachychampsa sp.
Gilmore 1911
|
||||||||||
Teeth | ||||||||||
= Alligatorinae indet.
Cuvier 1807
|
Rana 2000 | |||||||||
= Crocodyliformes indet.
Hay 1930
|
Rio and Mannion 2021 | |||||||||
Crocodilus sp.
(Laurenti 1768)
|
49 specimens | |||||||||
ITV/R/Cr-151 to 200 | ||||||||||
= Crocodyliformes indet.
Hay 1930
|
Rio and Mannion 2021 | |||||||||
Allognathosuchus sp.
Mook 1921
|
Rana and Sati 2000 | 90 specimens | ||||||||
ITV/R/Cr-1 to 90 | ||||||||||
= Crocodyliformes indet.
Hay 1930
|
Rio and Mannion 2021 | |||||||||
Asiatosuchus sp.
Mook 1940
|
Rana and Sati 2000 | 2 specimens | ||||||||
ITV/R/Cr-91, 92 | ||||||||||
= Crocodyliformes indet.
Hay 1930
|
Rio and Mannion 2021 | |||||||||
Thoracosaurus sp.
Leidy 1852
|
Rana and Sati 2000 | 57 specimens | ||||||||
ITV/R/Cr-93 to 150 | ||||||||||
= Crocodyliformes indet.
Hay 1930
|
Rio and Mannion 2021 | |||||||||
Reptilia
- Testudines
|
||||||||||
Pelomedusidae indet.
Cope 1868
|
||||||||||
= Chelonioidea indet.
Baur 1893
|
Rana 2000 | |||||||||
Mammalia
|
||||||||||
Theria indet.
Parker and Haswell 1897
|
Rana and Wilson 2003 | 6 specimens | ||||||||
ITV/R/Mm-5 (right P3); Mm-19 (left p3 or p4); Mm-13 (right p3 or p4); Mm-14 (left p1 or p2); Mm-15 (right p1 or p2); Mm-17 (right p1) | ||||||||||
Sahnitherium rangapurensis n. gen., n. sp.
Rana and Wilson 2003
|
Rana and Wilson 2003 | 1 specimen | ||||||||
ITV/R/Mm-1 (holotype right upper molar M1 or M2) | ||||||||||
Mammalia
- Adapisoriculidae
|
||||||||||
? Deccanolestes sp.
Prasad and Sahni 1988
|
Rana and Wilson 2003 | 2 specimens | ||||||||
ITV/R/Mm-9 (left m1 or m2); Mm-8 (right m1 or m2) | ||||||||||
? Deccanolestes hislopi
Prasad and Sahni 1988
|
5 specimens | |||||||||
= Deccanolestes cf. hislopi
Prasad and Sahni 1988
|
Rana and Wilson 2003 | |||||||||
ITV/R/Mm-2 (right M2), Mm-7 (right m1 or m2); Mm-10 (right m1 or m2); Mm-11 (left m3); Mm-12 (right m3) | ||||||||||
Deccanolestes cf. robustus
Prasad et al. 1994
|
Rana and Wilson 2003 | 1 specimen | ||||||||
ITV/R/Mm-6 (right m1 or m2) | ||||||||||
see common names |
Geography
Country: | India | State/province: | Andhra Pradesh |
Coordinates: | 17.2° North, 77.9° East (view map) | ||
Paleocoordinates: | 28.1° South, 59.0° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Late/Upper Maastrichtian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago | ||
Age estimate: | 66.184 to 66.075 Ma (Ar/Ar) |
Stratigraphy
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Upper Cretaceous continental sediments are exposed along the perimeter of the Deccan Traps in peninsular India. The thick sequences stratigraphically below the Deccan basalts and usually deposited on Archaean granite (peninsular gneiss complex) of Gondwana Group are known as Infratrappean (=Lameta Formation) beds. They are generally considered fluvio-lacustrine coastal plain deposits (Mohabey & Udhoji 1993). The thin (1-5 m) sediminstary beds between basal flows are known as Intertrappean (=Takli Formation) beds. These sedimentary beds are generally considered to have formed by the sudden blocking of the drainage system immediately after the eruption of the Deccan volcanic basalt, resulting in the formation of enclosed basins, separated by interfluvial divides (Rana 1990a). Both the Infra- and Intertrappean beds under study are considered Maastrichtian in age on paleontological, geochronological, and paleomagnetic data (see Khajuria et al 1994 for a review).
The fossiliferous units are situated between salt flows 4 and 5 (sensu Dutt 1975). Deccan II phase. |
Lithology and environment
Primary lithology: | black,brown marl |
Secondary lithology: | gray,white marl |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: The fossiliferous units are situated between salt flows 4 and 5 (sensu Dutt 1975). The basal unit of this local Intertrappean sequence is a white marl bed (10.5 cm), which is overlain by black chert (10.0 cm) followed by black-brown marl (17.5 cm), black chert (10.0 cm), greenish-pink marl (12.5 cm), grey marl with whitish-grey cherty nodules (52.0 cm), and whitish-grey marl beds (42.5 cm) respectively. Fresh water ostracodes, charophytes, and molluscs were recovered from the white marl, black brown marl, and whitish-grey marl beds. Microvertebrates, including mammals, were recovered from the black-brown marl and whitish-grey marl beds (Rana 1988, 1990a,b). | |
Environment: | fluvial-lacustrine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection excludes: | some microfossils | ||
Collection methods: | bulk,sieve,field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | R. S. Rana | Collection dates: | 1986, 1995-1998 |
Collection method comments: ITV/R collection: Intertrappean vertebrates/Rangapur in the Department of Geology, HNB Garhwal University, Srinigar, Uttaranchal, India | |||
Taxonomic list comments:Microvertebrate material includes remains from elasmobranchs, bony fish, amphibians, turtles, squamates, crocodiles, and mammals. |
Metadata
Also known as: | Intertrappean Beds Rangapur | ||
Database number: | 122240 | ||
Authorizer: | R. Benson, P. Mannion, M. Carrano | Enterer: | R. Benson, M. Carrano, G. Varnham, P. Mannion |
Modifier: | P. Mannion | Research group: | vertebrate |
Created: | 2011-12-19 23:05:26 | Last modified: | 2022-08-17 12:19:58 |
Access level: | the public | Released: | 2011-12-19 23:05:26 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
49061. | R. S. Rana. 1990. Palaeontology and palaeoecology of the Intertrappean (Cretaceous-Tertiary transition) beds of the peninsular India. Journal of the Palaeontological Society of India 35:105-120 [M. Carrano/M. Carrano] |
Secondary references:
78375 | V. V. Kapur and A. Khosla. 2019. Faunal elements from the Deccan volcano-sedimentary sequences of India: a reappraisal of biostratigraphic, palaeoecologic, and palaeobiogeographic aspects. Geological Journal 54(5):2797-2828 [M. Carrano/M. Carrano] | |
81043 | J. -C. Rage, G. V. R. Prasad, O. Verma, A. Khosla, and V. Parmar. 2020. Anuran Lissamphibian and Squamate Reptiles from the Upper Cretaceous (Maastrichtian) Deccan Intertrappean Sites in Central India, with a Review of Lissamphibian and Squamate Diversity in the Northward Drifting Indian Plate. In G. V. R. Prasad, R. Patnaik (eds.), Biological Consequences of Plate Tectonics: New Perspectives on Post-Gondwana Break-up—A Tribute to Ashok Sahni 99-121 [P. Mannion/G. Varnham] | |
39683 | R. S. Rana. 2000. Alligatorine teeth from the Deccan intertrappean beds near Rangapur, Andhra-Pradesh, India: further evidence of Laurasiatic elements. Current Science 59:49-51 [P. Mannion/P. Mannion] | |
49398 | R. S. Rana and K. K. Sati. 2000. Late Cretaceous–Palaeocene crocodilians from the Deccan Trap-associated sedimentary sequences of peninsular India. Journal of the Palaeontological Society of India 45:123-136 [M. Carrano/M. Carrano] | |
38910 | R. S. Rana and G. P. Wilson. 2003. New Late Cretaceous mammals from the Intertrappean beds of Rangapur, India and paleobiogeographic framework. Acta Palaeontologica Polonica 48(3):331-348 [R. Benson/R. Benson] | |
78086 | J. P. Rio and P. D. Mannion. 2021. Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem. PeerJ 9:e12094:1-156 [P. Mannion/P. Mannion] | |
82406 | G. P. Wilson Mantilla, P. R. Renne, B. Samant, D. M. Mohabey, A. Dhobale, A. J. Tholt, T. S. Tobin, M. Widdowson, S. Anantharaman, D. C. Dassarma, and J. A. Wilson Mantilla. 2022. New mammals from the Naskal intertrappean site and the age of India’s earliest eutherians. Palaeogeography, Palaeoclimatology, Palaeoecology 591:110857 [P. Mannion/P. Mannion/P. Mannion] |