Cryptodiran turtles
WebThe turtle shell is a shield for the ventral and dorsal parts of turtles (the order Testudines), completely enclosing all the vital organs of the turtle and in some cases even the head. ... Compared to the 12 in all Cryptodiran turtles. Carapace. Exploded view of the carapace of Emys orbicularis. Legend ... WebJan 1, 2024 · Studies of turtles may provide insight into this question. Aquatic lifestyles are ancestral among extant cryptodiran turtles . However, multiple cryptodiran lineages have independently specialized for terrestrial habitats, including tortoises (approx. 50 species, family Testudinidae) and North American box turtles (genus Terrapene) . These ...
Cryptodiran turtles
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WebThe skeletal morphology of the Cretaceous cryptodiran turtle, Adocus, and the relationships of the Trionychoidea. American Museum Novitates 2941:1-60. Mullins, M.A. and F.J. Janzen. 2006. Phenotypic effects of thermal means and variances on smooth softshell turtle (Apalone mutica) embryos and hatchlings. Herpetologica 62:27-36. WebBuoyancy, Locomotion, Morphology of the Pelvic Girdle and Hindlimb, and Systematics of Cryptodiran Turtles BY GEORGE R. ZUGr Division of Reptiles and Amphibians …
http://www.prehistoric-wildlife.com/species/a/adocus.html WebSep 4, 2013 · (E–J) ‘Rib’ rudiments in different adult cryptodiran turtles. (K–M) Stem turtle necks (after Gaffney, 1985; Gaffney, 1990). The parapophyses of the intercentra are dotted. Whether a rib is actually present at the atlas of Meiolania platyceps is not certain (M, Gaffney, 1985) and is illustrated as “potential rib” herein.
WebSep 18, 2012 · The turtles from the Purbeck Limestone are revised and it is concluded that there are four shell‐based cryptodire species present, namely Pleurosternon bullockii, … Webcryptodiran turtles include the Chelydridae, Kinosternidae, Dermatemydidae, Platysterni-dae, Emydidae and Testudinidae and are usu-ally placed in the Testudinoidea (Williams, …
WebThe Cryptodira ( Greek: hidden neck) are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pleurodira (side-necked turtles) in that they …
WebWithin amniotes, mammals, turtles, and crocodilians are known to have 'glans' tissues distinct from the tissues that stiffen the phallus (Kelly 1999b (Kelly , 2004Moore et al. 2012); as these... slurry containmentThe Cryptodira (Greek: hidden neck) are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira differ from Pleurodira (side-necked turtles) in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the … See more The Cryptodira are characterized by retraction of the head in the vertical plane, which permits for primarily vertical movements and restricted lateral movements outside of the shell. These motions are largely … See more • Trionychidae (Soft Shell Turtles) are found from North America, Africa, South and East Asia to New Guinea. • Kinosternidae (Mud and Musk Turtles) are found from Eastern … See more Cryptodires evolved from pleurodires during the early Jurassic period, originating from South America and Southeast Asia. By the end of the Jurassic, … See more • Baur, George (June 1890). "On the Classification of the Testudinata". The American Naturalist. 24 (282): 530–536. doi:10.1086/275138. JSTOR 2450882. • Rhodin, Anders G.J.; van Dijk, Peter Paul; Inverson, John B.; Shaffer, H. Bradley; Roger, Bour (2011 … See more solar lights for rail postWebJun 1, 2014 · Aquatic cryptodiran turtles of the clades Emydidae, Chelydridae, Geoemydidae, Kinosternidae, and Trionychidae are the most recent Mesoamerican immigrants to South America, arriving in various ... solar lights for porchesWebCarettochelyidae is a family of cryptodiran turtles belonging to the Trionychia. It contains only a single living species, the pig-nosed turtle ( Carettochelys insculpta) native to New Guinea and Northern Australia. Stem-group carettochelyids are known from the Cretaceous of Asia, with the family being widely distributed across North America ... solar lights for porch postThe Pleurodira are identified by the method with which they withdraw their heads into their shells. In these turtles, the neck is bent in the horizontal plane, drawing the head into a space in front of one of the front legs. A larger overhang of the carapace helps to protect the neck, which remains partially exposed after retraction. This differs from the method employed by a cryptodiran, which tuck… solar lights for pillar topsWebThe penes of cryptodiran turtles are highly diverse in structure. For this reason, it is difficult to describe a generalized penis which woultl include all tlle structural dif-f'erences observed in the various ... the penial morphology of other cryptodiran genera. In the relaxed state, the penis lies ventromedially in the cloaca (Fig. 1A). solar lights for pond and gardenWebTurtles are characterized by their typical carapace, which is primarily composed of corneous beta proteins in the horny part and collagen in the dermal part. ... Comparative study of collagen distribution in the dermis of the embryonic carapace of soft- and hard-shelled cryptodiran turtles J Morphol. 2024 Apr;282(4):543-552. doi: 10.1002/jmor ... solar lights for railing posts