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Bajpai, Sunil; Singh, M. P.; Singh, Pratap
(detail)
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1987 |
A new sirenian from the Miocene of Kachchh, western India.
Jour. Pal. Soc. India 32: 20-25. 1 tab. 1 fig. 1 pl.
–Describes Metaxytherium kachchhensis [sic], n.sp., from the Lower Miocene Khari Series.
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Bajpai, Sunil; Domning, Daryl Paul
(detail)
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1997 |
A new dugongine sirenian from the early Miocene of India.
Jour. Vert. Pal. 17(1): 219-228. 3 tabs. 6 figs. Apr. 16, 1997.
–Redescribes the holotype skull of Bharatisiren kachchhensis (Bajpai, Singh, and Singh, 1987), n.gen. n.comb., from the Khari Nadi Formation in Kachchh (Kutch). This skull is the best-preserved fossil sirenian specimen so far reported from the Indian Ocean region, and the first fossil from that region that is unequivocally referable to the Dugonginae. It is related cladistically to other dugongines as follows: (Crenatosiren(Dugong(Bharatisiren(other dugongines)))).
urn:lsid:zoobank.org:pub:A8B55171-C7A7-4D66-A8B6-149166103E2E
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Bajpai, Sunil; Thewissen, Johannes G. M.; Kapur, Vivesh Vir; Tiwari, Brahma N.; Sahni, Ashok
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2006 |
Eocene and Oligocene sirenians (Mammalia) from Kachchh, India.
Jour. Vert. Pal. 26(2): 400-410. 2 tabs. 6 figs. June 12, 2006.
–Describes Eotheroides babiae, n.sp. (Middle Eocene) and Bharatisiren indica, n.sp. (Late Oligocene), in addition to other reported taxa.
ABSTRACT--Discoveries of three species of Eocene sirenians in District Kachchh, State of Gujarat, India, are reported. A species of the protosirenid Protosiren is represented by cranial and postcranial material, and the halitheriine dugongid Eosiren is represented by a poorly preserved mandible. Neither of these can be identified at the specific level. A new species of haltheriine dugongids is described: Eotheroides babiae, n. sp. The species is based on a lower jaw with teeth. Another new fossil sirenian is reported from the Oligocene (Chattian) Maniyara Fort Formation. The new species, Bharatisiren indica, n. sp., is based on a well-preserved skull, mandibles, and several postcranial specimens. Bharatisiren is a basal dugongine dugongid, close to previously described Bharatisiren kachchhensis and possibly near the origin of the modern genus Dugong.
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Bajpai, Sunil; Domning, Daryl Paul; Das, Debi P.; Mishra, Vijay P.
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2009 |
A new middle Eocene sirenian (Mammalia, Protosirenidae) from India.
Neues Jb. Geol. Pal. Abh. 252(3): 257-267. 1 tab. 5 figs. 10.1127/0077-7749/2009/0252-0257 June 2009.
–Describes Ashokia antiqua n.gen.n.sp. from the early Middle Eoc. (Lutetian) Harudi Formation of Kutch, India.
urn:lsid:zoobank.org:pub:91FFF2B4-CD94-4B30-A06D-C0D84E151780
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Thewissen, Johannes G. M.; Bajpai, Sunil
(detail)
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2009 |
A new Miocene sirenian from Kutch, India.
Acta Palaeontologica Polonica 54(1): 7-13. 2 tabs. 3 figs. Mar. 2009.
–Describes Domningia sodhae, n.gen. n.sp.
urn:lsid:zoobank.org:pub:7E63EF87-F843-42DB-B113-892B6664C2C2
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Bajpai, Sunil; Domning, Daryl Paul; Das, Debi P.; Vélez-Juarbe, Jorge; Mishra, Vijay P.
(detail)
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2010 |
A new fossil sirenian (Mammalia, Dugonginae) from the Miocene of India.
Neues Jb. Geol. Pal. Abh. 258(1): 39-50. 3 tabs. 6 figs. Published online June 2010.
–Describes Kutchisiren cylindrica, n.gen.n.sp., from the Lower Miocene (Aquitanian or Burdigalian) Khari Nadi Formation of Kutch, Gujarat, western India.
urn:lsid:zoobank.org:pub:B3B87E4E-AC64-44C4-8D49-69699BF123DF
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Chatterjee, Sankar; Scotese, Christopher R.; Bajpai, Sunil
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2017 |
The restless Indian Plate and its epic voyage from Gondwana to Asia: Its tectonic, paleoclimatic, and paleobiogeographic evolution.
Geological Soc. of America Special Paper 529: iv + 147. Illus. https://doi.org/10.1130/SPE529 Jan. 1, 2017.
–Brief summary of Eoc. sir. fossil record in India and elsewhere (88 [Table 11], 92).
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Saha, Aatreyee; Kumar, Verma, Sanjay; Bajpai, Sunil; Roy, Pummy; Domning, Daryl.
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2026 |
Miocene dugongid (Mammalia, Sirenia) diversity in the Indian Ocean, with description of a new genus and species from Kutch, Western India.
Jour. Vert. Paleo. 46(1). 15 pp. 3 tabs. 7 figs. Mar. 16, 2026.
–ABSTRACT
The near lack of vertebrate fossils from the Cenozoic of Madagascar has left many of the details regarding the origin and evolution of the island's extant faunas unknown. However, recent fossil discoveries from Madagascar's nearshore marine deposits have begun to elucidate this mystery. These finds include sharks, bony fish, turtles, crocodylians, a middle Eocene sirenian (Eotheroides lambondrano), and the island's first fossil dolphin. We report here at least three (possibly four) different early (or possibly later) Miocene dugongid sirenians recovered from the island of Nosy Makamby, Mahajanga Basin, northwestern Madagascar. These include (1) a fragmentary braincase originally attributed to the genus Halitherium but here reidentified as a previously named species known only from Libya (Rytiodus heali; Dugonginae); (2) a newly named genus and species (Norosiren zazavavindrano) interpreted as a primitive relative of Xenosiren (Dugonginae); (3) a probable dugongine not yet identified with any known species; and (4) a taxon reported here as Metaxytherium cf. krahuletzi (Halitheriinae), the first Neogene halitheriine credibly reported from the Indian Ocean basin. This pattern of shallow marine environments harboring multispecies sirenian paleofaunas is seen elsewhere in the world, and these three or four contemporaneous sirenians represent the first glimpse into Madagascar's sea cow diversity during the Miocene. This specific time period is a poorly known and critical interval for interpreting Madagascar's past, and these specimens are potentially highly significant for reconstructing sirenian evolutionary and biogeographic history. Surprisingly, this sirenian fauna, so far, shares no genera with the roughly contemporaneous and relatively nearby one from Kutch, western India.
FRENCH ABSTRACT
La quasi-absence de fossiles de vertébrés datant du Cénozoïque à Madagascar laisse planer beaucoup d'incertitudes sur l'origine et l'évolution de sa faune actuelle. Toutefois, de récentes découvertes de fossiles marins littoraux malagasy, notamment des fossiles de poissons osseux, requins, crocodiles, tortues, un sirénien de l'Éocène moyen (Eotheroides lambondrano) et un dauphin, ont commencé à donner des éléments de réponse. Nous rapportons ici au moins trois, peut-être quatre, différents siréniens miocènes retrouvés dans les formations sédimentaires d'origine marines de Nos Makamby (Bassin de Mahajanga, Nord-Ouest de Madagascar). Les spécimens récoltés incluent: (1) un fragment de crâne auparavant attribué incorrectement au genre Halitherium mais réattribué ici à une espèce précédemment nommée: le dugonginé Rytiodus heali, connu seulement en Libye; (2) un nouveau genre et espèce (Norosiren zazavavindrano) que nous interprétons comme étant un parent primitif de Xenosiren (Dugonginae); (3) un présumé dugonginé qui n'est semblable à aucune espèce connue; (4) et un taxon identifié comme Metaxytherium cf. krahuletzi (Halitheriinae), c'est-à-dire le premier halitheriiné rapporté de manière crédible pour l'Océan Indien. Ce modèle de milieu marin peu profond abritant une paléo-faune sirénienne multi-spécifiques est observé ailleurs dans le monde, et les trois ou quatre siréniens contemporains rapportés ici représentent le premier aperçu de la diversité des siréniens malagasy du Miocène. Comme cette période est mal connue et représente un intervalle critique dans l'interprétation du passé de Madagascar, ces spécimens sont très significatifs pour reconstruire l'histoire évolutive et biogéographique des siréniens. Il est cependant surprenant que cette faune sirénienne ne présente aucun genre en commun avec celle approximativement contemporaine et relativement proche de Kutch (Inde occidentale).
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Bibliography and Index of the Sirenia and Desmostylia 