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Brachydontes

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Details of disarticulated shell beds forming reworked lags within facies A ...
Published: 01 June 2019
Figure 8. Details of disarticulated shell beds forming reworked lags within facies A mudstone. A. Two species of Corbula ; B. Lag comprising mainly disarticulated oysters and Brachydontes cf. multilinigera Meek ( McLearn, 1945 ); (scale marked in 1 cm divisions). C. Large oysters, possibly
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Allomembers AX2 to AX5, exposed in the headwaters of Dickebusch Creek, BC. ...
Published: 01 March 2019
Figure 14. Allomembers AX2 to AX5, exposed in the headwaters of Dickebusch Creek, BC. Each allomember is characterized by one or more, few-metre scale, upward-shoaling successions, bounded by flooding surfaces. Bivalves indicated by (B) include oysters, Brachydontes and Corbula , ( McLearn
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A. 30 cm coal capping allomember AX5 in Flatbed Creek (see  Fig. 11 ). Coal...
Published: 01 March 2019
of Brachydontes and encrusting serpulid worms. C. Plan view of oyster bed showing large, horizontal, mutually-intersecting burrows, probably attributable to large arthropods, filled with broken oyster shells. D. Partially preserved carapace and appendages of an arthropod found in association with the burrows
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Drawing of the main components of the interpreted tidal channel fill expose...
Published: 29 June 2006
-fill, and brackish-water bivalves ( Brachydontes , Ostrea ) in the intervening mudstone. The channel cuts down through laminated and cross-bedded sandstone representing foreshore and surf zones, to rest on swaley cross-stratified sandstone representative of the middle shoreface. See Fig.  3
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Figure  2. Cheek tooth crown height in extant and fossil equids. A, B, Basi...
Published: 01 March 2006
Figure 2. Cheek tooth crown height in extant and fossil equids. A, B, Basic tooth morphology, redrawn from Janis and Fortelius (1988) . A, Brachydont, or low-crowned (human) tooth. The crown is defined as the enamel-covered part of the tooth above the gum line ( Peyer 1968 ). B, Hypsodont
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Number of nodes and characters with synapomorphies/autapomorphies of the ph...
Published: 01 November 2020
length 0.523 → 0.322–0.363 11 Width i/p4–m3 length: 0.164–0.200 → 0.230–0.239 21 Hypsodonty of teeth: 0 (brachydont) → 1 (mesodont) 22 Shape upper diastema: 0 (flat) → 1 (curved) 31 Incisive foramina: 0 (not greatly reduced) → 1 (greatly reduced) 32 Position anterior alar fissure
Journal Article
Journal: Paleobiology
Published: 01 February 2010
Paleobiology (2010) 36 (1): 113–136.
... ) because there are hypsodont browsers today (e.g., goats, pronghorn, and camels [ O'Gara 1978 ; Kohler-Rollefson 1991 ]) as well as mesodont grazers (e.g., Indian chital and chousingha [ Schaller 1967 ]). Solounias and Semprebon (2002) report grazing in certain brachydont fossil equids. Table 1...
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Journal Article
Published: 06 July 2007
Canadian Journal of Earth Sciences (2007) 44 (5): 585–592.
... and crests are rounded. The teeth are brachydont. Fig. 2. Photograph of Boreameryx braskerudi , holotype, left jaw fragment with m1–m3 (CMN 52710). (A) medial view; (B) occlusal view; (C) lateral view. Fig. 3. Boreameryx braskerudi , holotype, left jaw fragment with m1–m3 (CMN 52710...
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Journal Article
Journal: Geology
Published: 01 September 2012
Geology (2012) 40 (9): 823–826.
... information. Three classes of molar tooth crown height are recorded in the NOW database: brachydont, mesodont, and hypsodont. The criterion for assigning species to classes is based on the ratio of height to length of the second molar (upper or lower). Brachydont teeth have a ratio <0.8, mesodont teeth...
FIGURES
Journal Article
Published: 01 July 2004
Journal of Paleontology (2004) 78 (4): 731–740.
... ?) descendens ( Dehm, 1950 ). A . (= Pseudallomys ) nexodens ( Korth, 1992 ). A. crucifer Lopatin, 1997 . A. shantungensis ( Rensberger and Li, 1986 ). A. shanwangensis Qiu and Sun, 1988 . Ansomys hepburnensis n. sp. Cheek teeth brachydont, unlike meniscomyines and aplodontines, but with high...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1949
AAPG Bulletin (1949) 33 (4): 511–532.
... including the non-marine Unio dowlingi fauna and the marine Inoceramus dunveganensis fauna. Strata observed by the writer to contain the marine pelecypod Brachydontes multilinigera has in this paper been included in the overlying Kaskapau formation. In the Pouce Coupe area this species occurs...
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Journal Article
Published: 24 August 2017
Journal of Paleontology (2017) 91 (6): 1272–1295.
... Archaeopithecus rogeri , including also the monotypic genus Pachypithecus and its species P . macrognathus Ameghino, 1897 . According to Ameghino, Archaeopithecidae shared some features with primates, such as brachydont dentition and a primate-like jaw, which he cited as a reason to consider this family...
Journal Article
Published: 01 November 2018
Rocky Mountain Geology (2018) 53 (2): 129–136.
... by a central transverse valley, typical of heteormyids. No definite measurements can be made of either length or width due to the fragmentary nature of the specimen. Discussion .—This specimen is clearly a heteromyid with brachydont cheek teeth similar to Perognathus; however, due to its condition...
FIGURES
Journal Article
Published: 01 December 1965
Bulletin of Canadian Petroleum Geology (1965) 13 (4): 503–508.
... and Brachydontes to shallow marine forms such as Inoceramus. The general fossil assemblages and configuration of the type Dunvegan Formation would suggest he marine margin of a delta. The stratigraphic relations of tlie formation are shown in Fig. 1. The Dunvegan Formation is generally accepted to be of an early...
Journal Article
Published: 01 November 2020
Journal of Paleontology (2020) 94 (6): 1202–1212.
... taxa (see Selig et al., 2019b ), as having an ectoloph requires that lower molars be characterized by tall cusps to allow for proper occlusion during mastication. Therefore, the relatively brachydont lower molars of Ptilocercus may relate to their brachydont upper molars that lack ectolophs. However...
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Journal Article
Published: 01 March 2013
Journal of Paleontology (2013) 87 (2): 289–296.
... aligned with lower incisor; cheek teeth brachydont to mesodont and lophate; dental formula 1/1–0/0–1/1–3/3; P4–p4 progressively larger relative to M1/m1; distinct anteroconid on p4; uniserial microstructure of incisor enamel with two-part portio interna but lacking a longitudinal ridge along...
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Journal Article
Published: 29 June 2006
Canadian Journal of Earth Sciences (2006) 43 (6): 631–652.
...-fill, and brackish-water bivalves ( Brachydontes , Ostrea ) in the intervening mudstone. The channel cuts down through laminated and cross-bedded sandstone representing foreshore and surf zones, to rest on swaley cross-stratified sandstone representative of the middle shoreface. See Fig.  3...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 1947
AAPG Bulletin (1947) 31 (11): 2054–2060.
... weathered............... 10,054 Total depth The fossils that have been obtained from 8,500–9,350 feet are definitely Mesozoic in age, but there is uncertainty as to the precise position of the sediments. Reeside 5 identified Ostrea, Alectryonia, Plicatula, Camptonectes? , and Brachydontes...
FIGURES
Journal Article
Journal: Paleobiology
Published: 01 March 2006
Paleobiology (2006) 32 (2): 236–258.
...Figure 2. Cheek tooth crown height in extant and fossil equids. A, B, Basic tooth morphology, redrawn from Janis and Fortelius (1988) . A, Brachydont, or low-crowned (human) tooth. The crown is defined as the enamel-covered part of the tooth above the gum line ( Peyer 1968 ). B, Hypsodont...
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Journal Article
Published: 01 May 2014
Journal of Paleontology (2014) 88 (3): 434–443.
... processes of some artiodactyl jaws. The teeth are brachydont, like those in palaeomerycids ( Figs. 2–4 ), and moderately worn. The crests and cristids are well developed, clearly marked, and not so worn as to be merged together. There are no cusps left as would be seen in unworn teeth, even in the M 3...
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