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| - Gli ptolemaiidi (Ptolemaiida) sono un ordine di mammiferi estinti, poco conosciuto e dalle incerte affinità, che annovera alcune specie fossili rinvenute in terreni dell'Eocene e dell'Oligocene dell'Egitto (38-33 milioni di anni fa) e del Miocene del Kenya (23-12 milioni di anni fa). (it)
- Ptolemaiida (o ptolemaidos) es un orden extinto de mamíferos similares en tamaño a un lobo que vivieron en el norte y el este de África durante el Paleógeno. Los fósiles más antiguos provienen de estratos de finales del Eoceno de la , cerca del oasis del Fayum en Egipto. Los más modernos se han encontrado en estratos de principios del Mioceno en la isla Rusinga, Lago Victoria, Kenia. (es)
- Ptolemaiida is a taxon of wolf-sized afrothere mammals that lived in northern and eastern Africa during the Paleogene. The oldest fossils are from the latest Eocene strata of the Jebel Qatrani Formation, near the Fayum oasis in Egypt. A tooth is known from an Oligocene-aged stratum in Angola, and Miocene specimens (of Kelba) are known from Kenya and Uganda (en)
- De Ptolemaiida is een orde van uitgestorven zoogdieren die van het Laat-Eoceen tot Mioceen in Afrika leefden. Het waren vermoedelijk insectivore dieren. Mogelijk behoort de Ptolemaiida tot de Afroinsectiphilia, als verwant van de aardvarkens, springspitsmuizen, goudmollen en tenrekachtigen, (nl)
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| has abstract
| - Ptolemaiida (o ptolemaidos) es un orden extinto de mamíferos similares en tamaño a un lobo que vivieron en el norte y el este de África durante el Paleógeno. Los fósiles más antiguos provienen de estratos de finales del Eoceno de la , cerca del oasis del Fayum en Egipto. Los más modernos se han encontrado en estratos de principios del Mioceno en la isla Rusinga, Lago Victoria, Kenia. Anteriormente considerados cimolestos, se han colocado dentro de Afrotheria ya que el taxón era endémico de África y debido a algunas similitudes en las características anatómicas del cráneo en común con los cerdos hormigueros, así como análisis de secuencias de colágeno obtenidas del fósil han revelado que no pertenecen a Cimolesta y Laurasiatheria. Actualmente no está claro si forman un taxón hermano de Tubulidentata o si son una secuencia parafilética que los conduce. En cualquier caso, su estrecha relación puede ofrecer la posibilidad de verdaderas sinapomorfias dentales con Afrosoricida. Ha existido mucha confusión acerca de los orígenes e incluso la identidad de los ptolemaidos. El primer espécimen, un colección de dientes molares aislados de la especie tipo, lyonsi, fueron identificados originalmente como de un primate, debido a que eran aplanados y casi idénticos a los de los primates. Más tarde, cuando se halló el primer cráneo, se pensó que era unas especie de musaraña monstruosa del tamaño de un lobo, ya que el cráneo poseía largos colmillos, y era muy delgado. Sin embargo recientemente se ha reconsiderado la posible dieta de los ptolemaidos y su posible comportamiento, ya que el desgaste de sus dientes sugiere que eran usados para aplastar objetos duros o moler comida abrasiva, y sus dientes tienen poca o ninguna capacidad de corte. Incluso así, algunas fuentes aún se refieren a ellos como musarañas gigantes carnívoras. (es)
- Ptolemaiida is a taxon of wolf-sized afrothere mammals that lived in northern and eastern Africa during the Paleogene. The oldest fossils are from the latest Eocene strata of the Jebel Qatrani Formation, near the Fayum oasis in Egypt. A tooth is known from an Oligocene-aged stratum in Angola, and Miocene specimens (of Kelba) are known from Kenya and Uganda The origin of the Ptolemaiida is obscure, and debated. The type species was originally thought to be a primate, but, later, when elongated skulls with long canines of Ptolemaia and Qarunavus were found, they were then thought to be hyaenodontids, or giant, carnivorous relatives of the pantolestids Palaeosinopa, and of modern shrews The family Ptolemaiidae was elevated to order level in 1995, although some experts later placed the Ptolemaiidae within the pantolestids. Recently, Ptolemaiida has been placed within Afrotheria on the basis of paleobiology, as the taxon was endemic to Africa, and because of some similarities in the anatomical features of the skull in common with aardvarks. It is currently unclear if they form a sister taxon to Tubulidentata or are a paraphyletic sequence leading to them. Regardless, their close relation may offer the possibility for true dental synapomorphies in Afroinsectiphilia. As mentioned earlier, there has been much confusion about the origins and even identities of the ptolemaiidans. The first specimen, a set of isolated molar teeth, of the type species, Ptolemaia lyonsi, was originally identified as being a primate, as they were flat and nearly identical to those of primates. Later, when the first skull was found, it was then thought to be a monstrous, wolf-sized shrew, as the skull had long canine fangs, and was very gracile. However, recently, there has been a reconsideration of the ptolemaiidan diet, and possible behavior, as wear on the teeth suggest that it crushed hard or abrasive food, and that the teeth had little or no shearing ability. Even so, some sources still refer to them as being gigantic, carnivorous shrews. (en)
- Gli ptolemaiidi (Ptolemaiida) sono un ordine di mammiferi estinti, poco conosciuto e dalle incerte affinità, che annovera alcune specie fossili rinvenute in terreni dell'Eocene e dell'Oligocene dell'Egitto (38-33 milioni di anni fa) e del Miocene del Kenya (23-12 milioni di anni fa). (it)
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