On the Olfactory Anatomy in an Archaic Whale (Protocetidae, Cetacea) and the Minke Whale Balaenoptera acutorostrata (Balaenopteridae, Cetacea)

  title={On the Olfactory Anatomy in an Archaic Whale (Protocetidae, Cetacea) and the Minke Whale Balaenoptera acutorostrata (Balaenopteridae, Cetacea)},
  author={Stephen J. Godfrey and Jonathan H Geisler and Erich M. G. Fitzgerald},
  journal={The Anatomical Record},
The structure of the olfactory apparatus is not well known in both archaic and extant whales; the result of poor preservation in most fossils and locational isolation deep within the skulls in both fossil and Recent taxa. Several specimens now shed additional light on the subject. A partial skull of an archaic cetacean is reported from the Pamunkey River, Virginia, USA. The specimen probably derives from the upper middle Eocene (Piney Point Formation) and is tentatively assigned to the… 

Olfactory epithelium and ontogeny of the nasal chambers in the bowhead whale (Balaena mysticetus)

The results suggest that bowhead whales have a functional sense of smell, which they may use to find prey.

Reduction of olfactory and respiratory turbinates in the transition of whales from land to sea: the semiaquatic middle Eocene Aegyptocetus tarfa

The maxilloturbinates of A. tarfa, although greatly reduced, still show some degree of similarity to those of artiodactyls, supporting the phylogenetic affinity of cetaceans and artiodACTyls based on morphological and molecular evidence.

The Endocranial Cast of Indohyus (Artiodactyla, Raoellidae): The Origin of the Cetacean Brain

The fact that the Indohyus endocast presents the symplesiomorphic brain pattern observed in earliest Artiodactyla indicates that the cetacean brain derives from a very simple, plesiomorphic brain, with simple neocortical folding pattern, widely exposed midbrain, and concurrent small neocortex expansion.

Anatomy of nasal complex in the southern right whale, Eubalaena australis (Cetacea, Mysticeti)

This work investigates the nasal anatomy, osteology and myology of the southern right whale, Eubalaena australis, and makes comparisons with other mysticetes, finding a novel structure, not reported previously in any mysticete, is the presence of a vascular tissue covering the lower nasal passage.

Aquatic adaptation and the evolution of smell and taste in whales

This work provides the whole-genome sequence of a mysticete and shows that mysticetes lack the dorsal domain of the OB, an area known to induce innate avoidance behavior against odors of predators and spoiled foods.

Title Aquatic adaptation and the evolution of smell and taste inwhales

It is shown that mysticetes lack the dorsal domain of the OB, an area known to induce innate avoidance behavior against odors of predators and spoiled foods, and all modern cetaceans are revealed to have lost the functional taste receptors.

New records of the dolphin Albertocetus meffordorum (Odontoceti: Xenorophidae) from the lower Oligocene of South Carolina: Encephalization, sensory anatomy, postcranial morphology, and ontogeny of early odontocetes

Five new specimens of xenorophid dolphins from North and South Carolina are reported, extending the temporal range of Albertocetus meffordorum into the early Oligocene, its geographic range into South Carolina, and expand the paleobiological understanding of the Xenorophidae.


Samples of the mucous membrane covering the cribriform plate at the bottom of the dorsal nasal meatus from a mature female common minke whale revealed histological characteristics that resembled those of the olfactory epithelium in terrestrial mammals, suggesting that mysticetes do indeed possess a nervous system structure that mediate olfaction.



Aegyptocetus tarfa, n. gen. et sp. (Mammalia, Cetacea), from the Middle Eocene of Egypt: Clinorhynchy, Olfaction, and Hearing in a Protocetid Whale

The pattern of tooth marks preserved on the ribs of Aegyptocetus indicates that the individual studied here was attacked by a large shark, but it is not certain whether this was the cause of death.

Organization of the Olfactory and Respiratory Skeleton in the Nose of the Gray Short-Tailed Opossum Monodelphis domestica

The geometric arrangement of odorant receptors suggests that a measure of volatility may be a component in the peripheral olfactory code, and that corresponding glomeruli may function in temporal signal processing.

Makaracetus Bidens, a New Protocetid Archaeocete (Mammalia, Cetacea) from the Early Middle Eocene of Balochistan (Pakistan)

Makaracetus bidens is a new genus and species of late Lutetian (early middle Eocene) archaeocete collected from the Kunvit area near Rakhni, in eastern Balochistan Province, Pakistan. M. bidens was

New Protocetid Whales from Alabama and Mississippi, and a New Cetacean Clade, Pelagiceti

The new specimens of Georgiacetus reported here add three additional anterior caudal vertebrae and a single more posterior caudAL vertebra to the hypodigm, which prove to be extremely helpful in determining the locomotory mode of this advanced protocetid.

Development of the Olfactory and Terminalis Systems in Whales and Dolphins

A fraction of mostly bipolar termina-lis neurons immunoreactive for luteinizing hormone-releasing hormone (LHRH) obviously are involved in the establishment and maturation of the brainpituitary-gonadal circuit.

Form, Function, and Anatomy of Dorudon Atrox (Mammalia, Cetacea): An Archaeocete from the Middle to Late Eocene of Egypt

Reconstructions of the soft anatomy of Dorudon atrox, along with analyses of functional morphology show that D. atrox was a caudally propelled swimmer, much like modem cetaceans.

Olfaction in whales: Evidence from a young odontocete of the late Oligocene North Sea

Osteological features suggest physical immaturity, but not a very early developmental stage, in this whale after cranial specialization had reached a level that is generally associated with the capacity for echolocation.

New species of protocetid archaeocete whale, Eocetus wardii (Mammalia: Cetacea) from the middle Eocene of North Carolina

  • M. Uhen
  • Biology
    Journal of Paleontology
  • 1999
A new species of protocetid archaeocete, Eocetus wardii n. sp., is named based on material from the late Lutetian (middle Eocene, 43-44 Ma) Comfort Member of the Castle Hayne Formation, North

Olfaction and brain size in the bowhead whale (Balaena mysticetus)

The olfactory anatomy of bowhead whales was investigated and it was determined that bowheads have a sense of smell, and it is speculated that they may use this to find aggregations of krill on which they feed.

A New Protocetid Whale (Cetacea: Archaeoceti) from the Late Middle Eocene of South Carolina

A new genus and species of protocetid cetacean is described from a partial skull, the posterior portion of both dentaries, 13 vertebrae, and elements of 15 ribs found in the Cross Member of the late middle Eocene Tupelo Bay Formation in Berkeley County, South Carolina.