Dicotyledonous fruits associated with coprolites from the Upper Cretaceous (Maastrichtian) Whitemud Formation, southern Saskatchewan, Canada

Nambudiri, E.M.V.; Binda, Pier L.

doi:10.1016/0034-6667(89)90006-7

Cited by 22 publications

(21 citation statements)

References 19 publications

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“…Coprolites attributed to hadrosaurs on the basis of their size, form, and spatial association with skeletal remains contain fragments of gymnosperm wood, foliage, and seeds (Chin and Gill 1996;Baghai-Riding and DiBenedetto 2001;Tweet et al 2008). Some coprolites possibly attributable to dinosaurian herbivores contain leaf cuticle, stem fragments, and abundant small angiosperm seeds (Nambudiri and Binda 1989;Rodriguez de la Rosa et al 1998). Such evidence may support the notion that dinosaurs were indiscriminant browsers and only facultative seed dispersal agents (Tiffney 2004).…”

Section: Palms and Dinosaur Herbivorymentioning

confidence: 78%

Fossil Palms (Arecaceae, Coryphoideae) Associated with Juvenile Herbivorous Dinosaurs in the Upper Cretaceous Aguja Formation, Big Bend National Park, Texas

Manchester¹,

Lehman

Wheeler

2010

International Journal of Plant Sciences

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Seeds of two palm species conforming to the extant genus Sabal have been recovered from the C^ampanian (Upper Cretaceous) Aguja Formation of Big Bend National Park, Texas: Sabal bigbendense sp. nov. and Sabal bracknellense (Chandler) Mai. These remains, found together with anatomically preserved palm stems, augment previous reports of Sabalites ungeri (Lesq.) Dorf leaves from the same formation. The co-occurrence of palm seeds with numerous juvenile hadrosaur and ceratopsian bones indicates that palms closely related to modern cabbage palms may have provided fodder and shelter for young herbivorous dinosaurs. The distribution of these and other Late Cretaceous palm fossils is reviewed.

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Section: Palms and Dinosaur Herbivorymentioning

confidence: 78%

Fossil Palms (Arecaceae, Coryphoideae) Associated with Juvenile Herbivorous Dinosaurs in the Upper Cretaceous Aguja Formation, Big Bend National Park, Texas

Manchester¹,

Lehman

Wheeler

2010

International Journal of Plant Sciences

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“…Although the pollen of Phyllanthus is rather heterogeneous, the Woolwich pollen appears to be correctly assigned (W. Punt, personal communication, July 2008). As an alternative minimal constraint, we could have used fossil fruits that resemble those of Phyllanthus from the Upper Cretaceous (Maastrichtian, [65][66][67][68][69][70] Ma ago) Whitemud Formation in southern Saskatchewan, Canada ( Nambudiri and Binda 1989 ). For absolute ages, we relied on the geologic time scale of Gradstein et al (2004 ).…”

Section: Methodsmentioning

confidence: 99%

More Miocene Dispersal Between Africa and Asia—the Case of Bridelia (Phyllanthaceae)

Li¹,

Dreßler²,

Zhang³

et al. 2009

Systematic Botany

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Several hundred angiosperm genera range from Africa to Asia and Australia, among them Bridelia (Phyllanthaceae), with ca. 40 species, including commercially important timber trees. We here use nuclear and chloroplast DNA sequences from herbarium material, plus new collections from China, to test the monophyly of Bridelia and to infer the geologic times when it acquired its disjunct range. For the Southeast Asian mainland, within-species sampling, including material collected close to the type localities, allowed testing current species concepts. Based on a sample of 114 chloroplast matK sequences of Phyllanthaceae, Bridelia is monophyletic and sister to an Asian clade which requires resurrecting an older generic name to make the African Cleistanthus monophyletic. Within Bridelia, gene trees from the combined data (3,177 aligned nucleotides from 25 species of Bridelia plus outgroups) agree with most morphological species boundaries. Exceptions are that B. tomentosa must include B. harmandii and B. curtisii to become monophyletic and that B. fordii is distinct from B. retusa. The topology, together with relaxed clock divergence times, implies that Bridelia dispersed from tropical Asia to Africa once or twice between 10 and 1.85 million years ago (Ma). Australia was reached, probably from New Guinea, at least twice, both times ca. 2 Ma. Together with earlier studies, there are now at least eight cases of Neogene long distance dispersal between Africa and Asia (followed by speciation), with no directional bias apparent so far.

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“…Coprolites are now known to preserve a wide range of biogenic components, including DNA fragments (Poinar et al, 2003), spores, pollen (Horrocks et al, 2003), phytoliths, other plant parts (Nambudiri and Binda, 1989) and wood fragments (Chin, 2007), cyanobacteria (Northwood, 2005), bacteria, diatoms, radiolarians (Souto, 2012), insects and other arthropods, and vertebrate tissues including bones, muscle, teeth, scales, keratin, and feathers (Wetmore, 1943;Waldman and Hopkins, 1970;Ash, 1978;Parris and Holman, 1978;Sohn and Chatterjee, 1979;Fisher, 1981;Martin, 1981;Thulborn, 1991;Hunt et al, 1994;Davis and Briggs, 1995;Chin et al, 1998Chin et al, , 2003Chin, 2002Chin, , 2007Northwood, 2005;Prasad et al, 2005). Coprolites are also known to preserve external markings, like feeding traces (Ma nsby, 2009, fig.…”

Section: Introductionmentioning

confidence: 99%

Gar-Bitten Coprolite From South Carolina, USA

Godfrey

Palmer

2015

Ichnos

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Dicotyledonous fruits associated with coprolites from the Upper Cretaceous (Maastrichtian) Whitemud Formation, southern Saskatchewan, Canada

Cited by 22 publications

References 19 publications

Fossil Palms (Arecaceae, Coryphoideae) Associated with Juvenile Herbivorous Dinosaurs in the Upper Cretaceous Aguja Formation, Big Bend National Park, Texas

Fossil Palms (Arecaceae, Coryphoideae) Associated with Juvenile Herbivorous Dinosaurs in the Upper Cretaceous Aguja Formation, Big Bend National Park, Texas

More Miocene Dispersal Between Africa and Asia—the Case of Bridelia (Phyllanthaceae)

Gar-Bitten Coprolite From South Carolina, USA

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