1-20 OF 25 RESULTS FOR

Amecephalus

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 September 2014
Journal of Paleontology (2014) 88 (5): 906–924.
... Soldano Member yield trilobites characteristic of the early middle Cambrian (series 3, stage 5; Delamaran stage of Laurentia). In ascending order of occurrence, Amecephalus arrojosensis , Kochiella maxeyi and Eokochaspis nodosa , along with several other taxa, including Ptychobaba n. gen. (type species...
FIGURES | View All (12)
Journal Article
Published: 01 November 1999
Journal of Paleontology (1999) 73 (6): 1126–1143.
... with Alokistocaridae; 2) Alokistocaridae is a monophylectic clade and not synonymous with Papyriaspididae Whitehouse, 1939; 3) Pseudoalokistocare Sundberg, 1994, is synonymous with Alokistocare; and 4) Taxa previously assigned to the older "Alokistocare"/Amecephalus group (Plagiura to Glossopleura biochrons) form...
Image
<b>Amecephalus</b> arrojosensis  (Lochman  in  Cooper et al., 1952 ) from the midd...
Published: 01 September 2014
Figure 5 Amecephalus arrojosensis (Lochman in Cooper et al., 1952 ) from the middle Cambrian Soldano Member, La Laja Formation, at Cerro El Molle, San Juan, Argentina (collection +1 m): 1, 2 , cranidium (dorsal, anterior), IANIGLA-PI 1342a, ×4; 3, 4 cranidium (dorsal, anterior-oblique
Image
<b>Amecephalus</b> arrojosensis  (Lochman  in  Cooper et al., 1952 ) from the midd...
Published: 01 September 2014
Figure 6 Amecephalus arrojosensis (Lochman in Cooper et al., 1952 ) from the middle Cambrian Soldano Member, La Laja Formation, at Cerro El Molle, San Juan, Argentina (collection +1 m): 1, cranidium (dorsal), IANIGLA-PI 1113, ×5.5; 2 , cranidium (dorsal), IANIGLA-PI 1114, ×8; 3
Image
Figure  5 — 1–13, <b>Amecephalus</b> arrojosensis  ( Lochman, 1952 );  1, 2,  larg...
Published: 01 July 2000
Figure 5 — 1–13, Amecephalus arrojosensis ( Lochman, 1952 ); 1, 2, large, mostly exfoliated cranidium (USNM 493133) from USNM locality 41215, ×4.5; 3, librigena (USNM 493135) from USNM locality 41212, ×10.0; 4, smaller cranidium (USNM 493132) from USNM locality 41215, ×6.0; 5, silicified
Image
Figure  6 — 1, 2, <b>Amecephalus</b>  sp. A from USNM locality 41439;  1,  testate...
Published: 01 July 2000
Figure 6 — 1, 2, Amecephalus sp. A from USNM locality 41439; 1, testate cranidium (USNM 493137), ×5; 2, partially exfoliated cranidium (USNM 493136), ×5.
Journal Article
Published: 01 July 2000
Journal of Paleontology (2000) 74 (4): 604–630.
...Figure 5 — 1–13, Amecephalus arrojosensis ( Lochman, 1952 ); 1, 2, large, mostly exfoliated cranidium (USNM 493133) from USNM locality 41215, ×4.5; 3, librigena (USNM 493135) from USNM locality 41212, ×10.0; 4, smaller cranidium (USNM 493132) from USNM locality 41215, ×6.0; 5, silicified...
FIGURES | View All (15)
Image
Sample analyzed with Raman spectroscopy (KUMIP 314028). This fossil slab co...
in > PALAIOS
Published: 01 May 2012
FIGURE 1— Sample analyzed with Raman spectroscopy (KUMIP 314028). This fossil slab contains a BST-preserved Leanchoilia superlata? (left) and a biomineralized Amecephalus trilobite (right). Numbers mark localities of Raman spectra presented in the text.
Image
Figure  3 —The change in distribution of the  Kochiella  C.  Poulsen, 1927 ...
Published: 01 September 2004
Figure 3 —The change in distribution of the Kochiella C. Poulsen, 1927 , Amecephalus Walcott, 1924 , Hadrocephalites Sundberg and McCollum, 2002 , Kochaspis Resser, 1935 , and Mexicella clades in the four different iterations of the cladistic study. Also shown are several species known
Image
1,  outcrop of 2 m thick glauconitic bioclastic grainstone at base of Solda...
Published: 01 September 2014
Figure 4 1, outcrop of 2 m thick glauconitic bioclastic grainstone at base of Soldano Member, Olenelloids and ‘simple' ptychoparioids belonging to “ Antagmus ” occur in a 0.2 m thick interval to the left of the hammer; Amecephalus arrojosensis occurs at the top of the unit to the right
Image
Figure  6 —Trilobites from the stratigraphic interval surrounding the lower...
Published: 01 January 2005
) from locality LACMIP 15550, ×7.5. 5, Kochina vestita Resser, 1939b , partial cranidium (LACMIP 13096) from locality LACMIP 17720, ×5.0. 6, Amecephalus laticaudum ( Resser, 1939a ), damaged, mostly testate cranidium (LACMIP 13091) from locality LACMIP 17715, ×2.8; also see 12 for pygidium. 7
Image
Selected fossils from the Spence Shale. ( a ) KUMIP 491902 and KUMIP 491903...
Published: 29 March 2019
wheelerensis from Miners Hollow, collected by the Gunther family. ( g ) KUMIP 491080, Acinocricus stichus from Miners Hollow, collected by Paul Jamison. ( h ) KUMIP 490932, Micromitra ? sp. from High Creek, with chaetae preserved, collected by Paul Jamison. ( i ) KUMIP 491805, ‘enrolled’ Amecephalus
Image
Miscellaneous ptychoparoids from the Emigrant Formation, Clayton Ridge, Nev...
Published: 01 May 2018
644005 (USNM loc. 44135). ( 4 ) Kistocare sp. indet., Glossopleura walcotti / Ptychagnostus praecurrens Zone, partial, testate cranidium USNM 643973 (USNM loc. 44123). ( 5, 6 ) Amecephalus ? sp. indet., Ehmaniella Zone: ( 5 ) damaged, mostly testate cranidium USNM 643922 (USNM loc. 44134); ( 6
Journal Article
Published: 01 January 2005
Journal of Paleontology (2005) 79 (1): 63–71.
...) from locality LACMIP 15550, ×7.5. 5, Kochina vestita Resser, 1939b , partial cranidium (LACMIP 13096) from locality LACMIP 17720, ×5.0. 6, Amecephalus laticaudum ( Resser, 1939a ), damaged, mostly testate cranidium (LACMIP 13091) from locality LACMIP 17715, ×2.8; also see 12 for pygidium. 7...
FIGURES | View All (6)
Journal Article
Published: 01 September 2004
Journal of Paleontology (2004) 78 (5): 920–940.
...Figure 3 —The change in distribution of the Kochiella C. Poulsen, 1927 , Amecephalus Walcott, 1924 , Hadrocephalites Sundberg and McCollum, 2002 , Kochaspis Resser, 1935 , and Mexicella clades in the four different iterations of the cladistic study. Also shown are several species known...
FIGURES
Journal Article
Published: 01 March 2003
Journal of Paleontology (2003) 77 (2): 331–359.
... are the Eokochaspis nodosa , Amecephalus arrojosensis , and Poliella denticulata (new) biozones. Poliella denticulata Rasetti, 1951 , is the oldest known species of that genus and has a wide geographic extent, from the southern Great Basin to the southern Canadian Rocky Mountains ( Rasetti, 1951 ). The first...
FIGURES | View All (20)
Journal Article
Published: 01 May 2018
Journal of Paleontology (2018) 92 (S76): 1–44.
... 644005 (USNM loc. 44135). ( 4 ) Kistocare sp. indet., Glossopleura walcotti / Ptychagnostus praecurrens Zone, partial, testate cranidium USNM 643973 (USNM loc. 44123). ( 5, 6 ) Amecephalus ? sp. indet., Ehmaniella Zone: ( 5 ) damaged, mostly testate cranidium USNM 643922 (USNM loc. 44134); ( 6...
FIGURES | View All (27)
Journal Article
Published: 01 July 2007
Journal of Paleontology (2007) 81 (4): 794–796.
.... In the lower portion, trilobites from the Olenellus Biozone (Dyeran Stage, “Lower” Cambrian) occur in the basal few meters, and are overlain by 15 m of mudstones containing the Eokochaspis nodosa , Amecephalus arrojosensis , and Oryctocephalus indicus biozones ( Lin and Knox, 2001 ; Sundberg...
FIGURES
Journal Article
Journal: PALAIOS
Published: 01 May 2012
PALAIOS (2012) 27 (5): 288–292.
...FIGURE 1— Sample analyzed with Raman spectroscopy (KUMIP 314028). This fossil slab contains a BST-preserved Leanchoilia superlata? (left) and a biomineralized Amecephalus trilobite (right). Numbers mark localities of Raman spectra presented in the text. ...
FIGURES
Journal Article
Published: 29 March 2019
Journal of the Geological Society (2019) 176 (4): 609–619.
... wheelerensis from Miners Hollow, collected by the Gunther family. ( g ) KUMIP 491080, Acinocricus stichus from Miners Hollow, collected by Paul Jamison. ( h ) KUMIP 490932, Micromitra ? sp. from High Creek, with chaetae preserved, collected by Paul Jamison. ( i ) KUMIP 491805, ‘enrolled’ Amecephalus...
FIGURES | View All (4)