Post by OldGreenVulture on Dec 23, 2019 5:37:06 GMT
Purussaurus mirandai .
Temporal range: Early-Late Miocene (Colhuehuapian-Montehermosan)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Crocodilia
Family: Alligatoridae
Subfamily: Caimaninae
Genus: †Purussaurus Rodrigues, 1892
Species: †Purussaurus mirandai Aguilera et al., 2006
Purussaurus is an extinct genus of giant caiman that lived in South America during the Miocene epoch, from the Colhuehuapian to the Montehermosan in the SALMA classification. It is known from skull material found in the Brazilian and Peruvian Amazon, Colombian Villavieja Formation, Panamanian Culebra Formation and the Urumaco and Socorro Formations of northern Venezuela. This indicates how widespread the wetlands such a large caiman would require to survive were across South America in the Miocene.
Holotype material: UNEFM-CIAAP-1369, comprising the skull and associated lower jaw material, as well as a femur and ischium, which, according to Aguilera et al. (2006) was collected at El Hatillo locality (see Scheyer and Delfino, 2016 for locality information).
New referred material: AMU-CURS-541, an associated but disarticulated skeleton, preserving cranial material and much of the postcranium, which was embedded normally with its abdomen in the sediment. The specimen was preliminarily assigned to Purussaurus cf. P. mirandai (Scheyer and Delfino, 2016), but given the overall shape and proportions of the lower jaw (see below), the lightly wavy lateral outline of the dentary, the low premaxilla and low and slender jugal (indicating a rather flat skull profile) it is herein referred to as Purussaurus mirandai. The shape of the mandible, the teeth, and of the tooth row in general are otherwise also congruent with that of the holotype specimen of P. mirandai. There is so far no indication for the presence of a second species of Purussaurus in the Urumaco Formation. The phylogenetic context of the species among Caimaninae is shown in Figure 1.
carnivora.net/purussaurus-mirandai-t7741.html#p92129
From Carnivora.
Temporal range: Early-Late Miocene (Colhuehuapian-Montehermosan)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Crocodilia
Family: Alligatoridae
Subfamily: Caimaninae
Genus: †Purussaurus Rodrigues, 1892
Species: †Purussaurus mirandai Aguilera et al., 2006
Purussaurus is an extinct genus of giant caiman that lived in South America during the Miocene epoch, from the Colhuehuapian to the Montehermosan in the SALMA classification. It is known from skull material found in the Brazilian and Peruvian Amazon, Colombian Villavieja Formation, Panamanian Culebra Formation and the Urumaco and Socorro Formations of northern Venezuela. This indicates how widespread the wetlands such a large caiman would require to survive were across South America in the Miocene.
Holotype material: UNEFM-CIAAP-1369, comprising the skull and associated lower jaw material, as well as a femur and ischium, which, according to Aguilera et al. (2006) was collected at El Hatillo locality (see Scheyer and Delfino, 2016 for locality information).
New referred material: AMU-CURS-541, an associated but disarticulated skeleton, preserving cranial material and much of the postcranium, which was embedded normally with its abdomen in the sediment. The specimen was preliminarily assigned to Purussaurus cf. P. mirandai (Scheyer and Delfino, 2016), but given the overall shape and proportions of the lower jaw (see below), the lightly wavy lateral outline of the dentary, the low premaxilla and low and slender jugal (indicating a rather flat skull profile) it is herein referred to as Purussaurus mirandai. The shape of the mandible, the teeth, and of the tooth row in general are otherwise also congruent with that of the holotype specimen of P. mirandai. There is so far no indication for the presence of a second species of Purussaurus in the Urumaco Formation. The phylogenetic context of the species among Caimaninae is shown in Figure 1.
carnivora.net/purussaurus-mirandai-t7741.html#p92129
From Carnivora.