2017
DOI: 10.1016/j.palaeo.2016.12.013
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Paleobiogeographic distribution of Testudinata and neosuchian Crocodyliformes in the Morrison Formation (Upper Jurassic) of North America: Evidence of habitat zonation?

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Cited by 10 publications
(9 citation statements)
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“…With little of the postcranial skeleton known, the specific ecology of Theriosuchus is not clear, but the environmental setting of Knoetschkesuchus guimarotae in estuarine lagoons and swamps (Schwarz and others, 2017) suggests that that species at least was semi-aquatic. The occurrence of T. morrisonensis in an abandoned channel pond deposit in the apparently wetter northern region of the Morrison Formation (Turner and Peterson, 2004;Foster and McMullen, 2017) aligns with the wet paleoenvironmental settings of K. guimarotae and T. pusillus and may indicate that T. morrisonensis too was semi-aquatic in its habits.…”
Section: Discussionmentioning
confidence: 61%
See 1 more Smart Citation
“…With little of the postcranial skeleton known, the specific ecology of Theriosuchus is not clear, but the environmental setting of Knoetschkesuchus guimarotae in estuarine lagoons and swamps (Schwarz and others, 2017) suggests that that species at least was semi-aquatic. The occurrence of T. morrisonensis in an abandoned channel pond deposit in the apparently wetter northern region of the Morrison Formation (Turner and Peterson, 2004;Foster and McMullen, 2017) aligns with the wet paleoenvironmental settings of K. guimarotae and T. pusillus and may indicate that T. morrisonensis too was semi-aquatic in its habits.…”
Section: Discussionmentioning
confidence: 61%
“…Fossil crocodylomorphs are diverse in the Upper Jurassic Morrison Formation of western North America, with seven species of terrestrial and semi-aquatic forms occurring, with collective widespread distribution and high abundance (e.g., Clark, 2011;Pritchard and others, 2013;Foster and McMullen, 2017). In 2004, the left mandible of a small crocodyliform was collected from the Little Houston Quarry in the Morrison Formation of the Black Hills, northeastern Wyoming (figure 1).…”
Section: Introductionmentioning
confidence: 99%
“…In total, we estimate the minimum number of preserved sauropod indi¬ viduals to be six (plus one theropod; McIntosh, 1981;Foster, 2003), one fewer than estimated by Foster (2003). (Foster et al, 2006), turtles and semiaquatic crocodyliforms (Foster and McMullen, 2017), and stegosaurs (Maidment et al, 2018). A trend indicating geographical segregation among flagellicaudatan sauropods has been proposed as well (Tschopp and Mateus, 2017;Maltese et al, 2018).…”
Section: Genus-level Referrals Were Possible Only Withinmentioning
confidence: 99%
“…So far, Type 1 pond deposits (Little Houston, Small Quarry, Quarry 9) are restricted to the northern and eastern parts of the Morrison Formation, and Type 2 deposits (FPA, Rainbow Park, Wolf Creek, and Cisco Mammal) are only known from the Colorado Plateau region in the Morrison. This taphofacies segregation may reflect the relative abundance differences in the occurrences of turtles and semi-aquatic crocodyliforms between the Colorado Plateau and areas north and east (Foster and McMullen, 2017), the north-and east-restricted distributions of possibly semi-aquatic mammalian and archosauromorph taxa in Docodon and Cteniogenys (Chure and Evans, 1998;Foster and Trujillo, 2000;Foster and others, 2006), and geologic evidence suggesting a higher water table and wetter surface conditions during Morrison times in areas that are now parts of Wyoming and eastern Colorado (Turner and Peterson, 2004). The Little Houston Quarry therefore helps characterize the faunas of the northern and eastern "wet" setting of the Morrison Formation.…”
Section: Taphonomymentioning
confidence: 99%
“…Microvertebrate taxa were identified in the formation relatively early on (Marsh, 1879;Gilmore, 1910Gilmore, , 1928 but large samples of such taxa were restricted to only a handful of sites until relatively recently. Work from the past few years has suggested that microvertebrate taxa, and specifically aquatic and semi-aquatic taxa, may be more abundant in the formation than commonly appreciated (Foster and Trujillo, 2004;Foster and Heckert, 2011;Foster and McMullen, 2017) and that the Morrison may show some paleobiogeographic zonation based on these small taxa and their preferred environments for habitat and preservation (Chure and Evans, 1998;Foster and Trujillo, 2000;Foster and others, 2006;Foster and McMullen, 2017). Paleobiogeo-graphic zonation is also becoming apparent for some groups of dinosaurs within the Morrison.…”
Section: Introductionmentioning
confidence: 99%