Thewissen, J.G.M.; Cooper, L.N.; Clementz, M.T.; Bajpai, S.; Tiwari, B.N.
taxonomy · topology · range · morphology · ecology · geochronology · methods · biogeography
The study combines separately catalogued skull, limb-bone histology and tooth-isotope samples from the Sindkhatudi bone bed; it does not describe one associated skeleton or a direct cetacean ancestor.
Indohyus skulls RR 207 and RR 208, separate dense limb bones and a tooth-isotope sample support aquatic wading and a raoellid sister placement to Cetacea in the cited analysis, but not crown-cetacean membership or direct ancestry.
claim:event:indohyus-aquatic-raoellid-evidenceThe named bone-bed material was assigned to Indohyus and Raoellidae and recovered as sister to Cetacea in the source analysis; it is not crown Cetacea or direct ancestry.
claim:taxon:indohyus:taxonomyThe profile is limited to the Sindkhatudi bone bed near Kalakot and does not define the full geographic range of Indohyus or Raoellidae.
claim:taxon:indohyus:biogeographyBone density and stable isotopes support aquatic or wading use, while diet, gait and habitual behaviour remain inferred from disarticulated material.
claim:taxon:indohyus:ecologyRR 207–208 document the involucrum, RR 157 and RR 42 dense long bones, and separate teeth provide the isotope sample.
claim:taxon:indohyus:morphologyThe 48–47 Ma envelope represents the bounded bone-bed context, not a global Indohyus FAD, LAD, cetacean origin date or lineage duration.
claim:taxon:indohyus:fossil-rangeThe 55–0 Ma Whippomorpha route uses a rounded early Eocene navigation ceiling and combines the approximately 48.6 Ma Indohyus raoellid sample with living whale–hippo retroposon topology; neither source dates the Whippomorpha crown, and the span is not a direct lineage duration.
claim:taxon:whippomorpha:root-range