Search Results - "Heckert, Andrew B."

Under the armor: X-ray computed tomographic reconstruction of the internal skeleton of Coahomasuchus chathamensis (Archosauria: Aetosauria) from the Upper Triassic of North Carolina, USA, and a phylogenetic analysis of Aetosauria by Hoffman, Devin K, Heckert, Andrew B, Zanno, Lindsay E

“…Aetosauria is a clade of heavily armored, quadrupedal omnivorous to herbivorous archosaurs known from the Late Triassic across what was the supercontinent of…”
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A new microvertebrate assemblage from the Mussentuchit Member, Cedar Mountain Formation: insights into the paleobiodiversity and paleobiogeography of early Late Cretaceous ecosystems in western North America by Avrahami, Haviv M, Gates, Terry A, Heckert, Andrew B, Makovicky, Peter J, Zanno, Lindsay E

“…The vertebrate fauna of the Late Cretaceous Mussentuchit Member of the Cedar Mountain Formation has been studied for nearly three decades, yet the fossil-rich…”
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A thin-shelled reptile from the Late Triassic of North America and the origin of the turtle shell by Joyce, Walter G, Lucas, Spencer G, Scheyer, Torsten M, Heckert, Andrew B, Hunt, Adrian P

“…Chinlechelys tenertesta…”
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Taphonomy of the Lamy amphibian quarry: A Late Triassic bonebed in New Mexico, U.S.A by Lucas, Spencer G., Rinehart, Larry F., Krainer, Karl, Spielmann, Justin A., Heckert, Andrew B.

“…Located in Santa Fe County, New Mexico, USA, the Lamy amphibian quarry is a Late Triassic (Adamanian) bonebed stratigraphically low in the Garita Creek…”
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The utility of probability plotting in palaeobiology by Rinehart, Larry F., Heckert, Andrew B., Lucas, Spencer G., Porro, Laura

“…We introduce probability plotting for general use in the analysis of biological and palaeontological morphometric data. When applied to morphometric data, this…”
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Disparate Growth Strategies within Aetosauria: Novel Histologic Data from the Aetosaur Coahomasuchus chathamensis by Hoffman, Devin K., Heckert, Andrew B., Zanno, Lindsay E.

“…ABSTRACT Aetosaurs comprise a clade of quadrupedal, armored, omnivores to herbivores that lived across much of the supercontinent of Pangea during the Late…”
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New Late Cretaceous microvertebrate assemblage from the Campanian–Maastrichtian Williams Fork Formation, northwestern Colorado, USA, and its paleoenvironmental implications by NICKOLAS A. BRAND, ANDREW B. HECKERT, ISRAEL SANCHEZ, JOHN R. FOSTER, REBECCA K. HUNT-FOSTER, JAELYN J. EBERLE

“…We describe a microvertebrate assemblage from the J&M site, of the Upper Cretaceous (Campanian–Maastrichtian) Williams Fork Formation. Breakdown of fossil…”
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A Detailed Description of Rugarhynchos sixmilensis, gen. et comb. nov. (Archosauriformes, Proterochampsia), and Cranial Convergence in Snout Elongation across Stem and Crown Archosaurs by Wynd, Brenen M, Nesbitt, Sterling J, Stocker, Michelle R, Heckert, Andrew B

“…The Triassic Period (252–201.5 Ma) records a great expansion of saurian diversity and disparity, particularly in skull morphology. Stem archosaurs exhibit…”
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A new species of Coahomasuchus (Archosauria, Aetosauria) from the Upper Triassic Pekin Formation, Deep River Basin, North Carolina by Heckert, Andrew B, Fraser, Nicholas C, Schneider, Vincent P

“…We describe a new species of the aetosaur Coahomasuchus, C. chathamensis, based on an incomplete, but largely articulated, anterior portion of a skeleton…”
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Ontogenetic Heterodonty in Reticulodus synergus (Chondrichthyes, Hybodontiformes) from the Upper Triassic of the Southwestern U.S.A., with a Redescription of the Genus by Voris, Jared T, Heckert, Andrew B

“…Isolated teeth from the extinct hybodontoid Reticulodus synergus Murry and Kirby are known from Upper Triassic strata of Revueltian age in Arizona, Utah, and…”
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A New Aetosaur (Archosauria, Suchia) from the Upper Triassic Pekin Formation, Deep River Basin, North Carolina, U.S.A., and Its Implications for Early Aetosaur Evolution by Heckert, Andrew B, Schneider, Vincent P, Fraser, Nicholas C, Webb, Richard A

“…Aetosaurs are an extinct clade of quadrupedal, heavily armored archosaurs that had a worldwide distribution during the Late Triassic. Aetosaur fossils from the…”
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Articulated Skeletons of the Aetosaur Typothorax coccinarum Cope (Archosauria: Stagonolepididae) from the Upper Triassic Bull Canyon Formation (Revueltian: Early-Mid Norian), Eastern New Mexico, USA by Heckert, Andrew B, Lucas, Spencer G, Rinehart, Larry F, Celeskey, Matthew D, Spielmann, Justin A, Hunt, Adrian P

“…We report two nearly complete, articulated skeletons of the crurotarsan archosaur Typothorax coccinarum from the Upper Triassic Bull Canyon Formation of…”
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Ichthyoliths and other microvertebrate remains from the Morrison Formation (Upper Jurassic) of northeastern Wyoming: A screen-washed sample indicates a significant aquatic component to the fauna by Foster, John R., Heckert, Andrew B.

“…A screenwashed microvertebrate site, the Mile 175 locality, in the Morrison Formation of Wyoming has yielded more than 3000 elements of actinopterygian fish…”
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Diverse New Microvertebrate Assemblage from the Upper Triassic Cumnock Formation, Sanford Subbasin, North Carolina, USA by Heckert, Andrew B, Mitchell, Jonathan S, Schneider, Vincent P, Olsen, Paul E

“…The Moncure microvertebrate locality in the Cumnock Formation, Sanford sub-basin, North Carolina, dramatically increases the known Late Triassic age vertebrate…”
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A new species of the enigmatic archosauromorph Doswellia from the Upper Triassic Bluewater Creek Formation, New Mexico, USA by HECKERT, ANDREW B., LUCAS, SPENCER G., SPIELMANN, JUSTIN A.

“…:  Doswellia sixmilensis is a new species of the doswelliid archosauromorph genus Doswellia named for an incomplete skeleton from the Upper Triassic Bluewater…”
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A NEW GENUS AND SPECIES OF SPHENODONTIAN FROM THE GHOST RANCH COELOPHYSIS QUARRY (UPPER TRIASSIC: APACHEAN), ROCK POINT FORMATION, NEW MEXICO, USA by HECKERT, ANDREW B., LUCAS, SPENCER G., RINEHART, LARRY F., HUNT, ADRIAN P.

“…:  We document here a new taxon of sphenodontian, Whitakersaurus bermani gen. et sp. nov., that is also the most complete sphenodontian fossil from the Upper…”
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A new short-faced archosauriform from the Upper Triassic Placerias/Downs’ quarry complex, Arizona, USA, expands the morphological diversity of the Triassic archosauriform radiation by Heckert, Andrew B., Nesbitt, Sterling J., Stocker, Michelle R., Schneider, Vince P., Hoffman, Devin K., Zimmer, Brian W.

“…The Placerias /Downs’ Quarry complex in eastern Arizona, USA, is the most diverse Upper Triassic vertebrate locality known. We report a new short-faced…”
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REVISION OF THE ARCHOSAUROMORPH REPTILE TRILOPHOSAURUS, WITH A DESCRIPTION OF THE FIRST SKULL OF TRILOPHOSAURUS JACOBSI, FROM THE UPPER TRIASSIC CHINLE GROUP, WEST TEXAS, USA by HECKERT, ANDREW B., LUCAS, SPENCER G., RINEHART, LARRY F., SPIELMANN, JUSTIN A., HUNT, ADRIAN P., KAHLE, ROBERT

“…:  The first abundant, well‐preserved fossils of the unusual archosauromorph reptile Trilophosaurus jacobsi Murry are from an Upper Triassic bonebed in the…”
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SOUTH AMERICAN OCCURRENCES OF THE ADAMANIAN (LATE TRIASSIC:LATEST CARNIAN) INDEX TAXON STAGONOLEPIS (ARCHOSAURIA: AETOSAURIA) AND THEIR BIOCHRONOLOGICAL SIGNIFICANCE by HECKERT, ANDREW B, LUCAS, SPENCER G

“…Aetosaur fossils from the Upper Triassic Ischigualasto Formation of Argentina formerly assigned to Aetosauroides scagliai Casamiquela and Argentinosuchus…”
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Clarifying Aetosaur Phylogeny Requires More Fossils, Not More Trees—Reply to Intraorganismal Homology, Character Construction, and the Phylogeny of Aetosaurian Archosaurs (Reptilia, Diapsida) by Heckert, Andrew B., Lucas, Spencer G., Steel, Mike

“…Heckert and Lucas defend the limitations of their cladistic analyses of aetosaur phylogeny as Harris et al pointed out. Harris et al described problems of…”
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