Rare Earth Element (Ree) Analysis of Vertebrate Fossils From the Upper Cretaceous Carbonate Marine Formations of Western and Central Alabama, Usa: Taphonomic and Paleoenvironmental Implications

Harrell, T. Lynn; Pérez‐Huerta, Alberto

doi:10.2110/palo.2014.031

Cited by 7 publications

(2 citation statements)

References 62 publications

(140 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mosasaur material for isotopic analyses (δ 18 O from the phosphate) was extracted mainly from well‐preserved tooth enamel, because the apatite is considered to be resistant to diagenesis (Koch ). For further assessment of the preservation, visual and SEM observations of tooth enamel were conducted and rare earth element (REE) data were evaluated from two previous studies using similar fossils from the same localities (Harrell & Pérez‐Huerta , b ). REE content suggests minimum diagenetic alteration in Mooreville Chalk fossils to the point of using the material to evaluate habitat preference based on light/medium/heavy REE ratios (Harrell & Pérez‐Huerta ).…”

Section: Methodsmentioning

confidence: 99%

Endothermic mosasaurs? Possible thermoregulation of Late Cretaceous mosasaurs (Reptilia, Squamata) indicated by stable oxygen isotopes in fossil bioapatite in comparison with coeval marine fish and pelagic seabirds

2016

Self Cite

View full text Add to dashboard Cite

The thermoregulatory style of Late Cretaceous mosasaurs has become a highly controversial subject in vertebrate palaeontology. These extinct marine reptiles have previously been described as poikilothermic, endothermic or gigantothermic. Here we analyse three genera of mosasaurs from the Mooreville Chalk in Alabama ( for modern seabirds, suggesting that this method provides accurate results. Finally, although there are small differences of body temperature among mosasaur genera, these are independent of size, and thus inferred body mass, suggesting that mosasaurs were not gigantotherms, but rather endotherms.

show abstract

Section: Methodsmentioning

confidence: 99%

Endothermic mosasaurs? Possible thermoregulation of Late Cretaceous mosasaurs (Reptilia, Squamata) indicated by stable oxygen isotopes in fossil bioapatite in comparison with coeval marine fish and pelagic seabirds

2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…See Section 2 for a description of the application of the informal name "Macrobaenidae." Synonymy-Turtle skeleton (Harrell & Pérez-Huerta, 2015).…”

Section: Systematic Paleontologymentioning

confidence: 99%

A large non‐marine turtle from the Upper Cretaceous of Alabama and a review of North American “Macrobaenids”

Gentry

Kiernan

Parham

2022

The Anatomical Record

View full text Add to dashboard Cite

The abundant record of marine turtles from the Late Cretaceous of Appalachia contrasts with the relatively poor record of contemporaneous terrestrial and freshwater species. A new taxon from the Santonian‐Campanian of Alabama, Appalachemys ebersolei gen. et sp. nov., is described here and assigned to a grade of freshwater turtles known as “macrobaenids.” Appalachemys can be differentiated from other “macrobaenids” by the presence of a nearly round carapace, deep nuchal emargination, and nine pairs of costals. With a carapace more than 80 cm in length, Appalachemys is among the largest freshwater turtles to ever inhabit North America. The absence of pre‐Campanian “macrobaenids” from Laramidia indicates that the North American distribution of this grade may have been restricted to Appalachia prior to the recession of the Western Interior Seaway. Phylogenetic analysis places Appalachemys as the sister taxon to all post‐Santonian “macrobaenids.” Although the phylogeny lacks statistical support, it demonstrates morphological similarities between the K/Pg boundary species Osteopygis emarginatus and Maastrichtian‐Danian species referred to Judithemys. We, therefore, refer all but the Campanian type species of Judithemys to the genus Osteopygis. A review of all North American “macrobaenid” occurrences reveals that despite originating in Asia, the record of the grade (as defined here) is predominantly North American. Future studies can test whether late Paleocene records in Asia and Europe resulted from dispersal from North America.

show abstract

REE + Y uptake in bioapatite revisited: Facies-controlled variability in coeval conodonts

Lumiste,

Paiste,

Paiste

et al. 2023

Chemical Geology

View full text Add to dashboard Cite

Rare Earth Element (Ree) Analysis of Vertebrate Fossils From the Upper Cretaceous Carbonate Marine Formations of Western and Central Alabama, Usa: Taphonomic and Paleoenvironmental Implications

Cited by 7 publications

References 62 publications

Endothermic mosasaurs? Possible thermoregulation of Late Cretaceous mosasaurs (Reptilia, Squamata) indicated by stable oxygen isotopes in fossil bioapatite in comparison with coeval marine fish and pelagic seabirds

Endothermic mosasaurs? Possible thermoregulation of Late Cretaceous mosasaurs (Reptilia, Squamata) indicated by stable oxygen isotopes in fossil bioapatite in comparison with coeval marine fish and pelagic seabirds

A large non‐marine turtle from the Upper Cretaceous of Alabama and a review of North American “Macrobaenids”

REE + Y uptake in bioapatite revisited: Facies-controlled variability in coeval conodonts

Contact Info

Product

Resources

About