Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Joseph F. Pachut"'
Autor:
Amber D. Adamczyk, Joseph F. Pachut
Publikováno v:
Journal of Paleontology. 87:635-649
A set of 127 binary and multistate characters, weighted by the number of derived character states, degree of covariation, and level of homoplasy, was used in a cladistic analysis of type species representing 12 genera previously assigned to families
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc0ee2eec8a409ff469673235e6a2f4
https://doi.org/10.1666/12-075
https://doi.org/10.1666/12-075
Autor:
Peggy Fisherkeller, Joseph F. Pachut
Publikováno v:
Journal of Paleontology. 85:744-756
The early astogeny of specimens representing the bryozoan genera Dekayia, Parvohallopora, Heterotrypa, and Homotrypella follows the same pattern documented in other Ordovician trepostomes. After larval settlement and metamorphosis, typically three pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c99e1d44f7fef841f3b0f28942ed7cb
https://doi.org/10.1666/10-110.1
https://doi.org/10.1666/10-110.1
Autor:
Joseph F. Pachut, Peggy Fisherkeller
Publikováno v:
Lethaia. 43:396-410
Pachut, J.F. & Fisherkeller, P. 2010: Inferring larval type in fossil bryozoans. Lethaia, Vol. 43, pp. 396–410. Larval type in extinct organisms might be recognizable because larvae of living marine invertebrates are approximately of the same size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6889f54483d46f7af083123d223d39f0
https://doi.org/10.1111/j.1502-3931.2009.00200.x
https://doi.org/10.1111/j.1502-3931.2009.00200.x
Autor:
Joseph F. Pachut, Robert L. Anstey
Publikováno v:
Paleobiology. 35:209-230
Recent analytical advances have permitted quantitative evaluations of evolutionary mode in populations of fossil organisms by providing tests of the null hypothesis that patterns of stratigraphic character variation do not differ from the expectation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af231077c745f670d0b560166cca4768
https://doi.org/10.1666/07055.1
https://doi.org/10.1666/07055.1
Diversity and distribution of Triassic bryozoans in the aftermath of the end-Permian mass extinction
Autor:
Joseph F. Pachut, Catherine M. Powers
Publikováno v:
Journal of Paleontology. 82:362-371
Seventy-three species of stenolaemate bryozoans are documented worldwide from the Triassic. Stage-level diversity and paleogeographical analyses reveal that the recovery of bryozoans following the end-Permian mass extinction was delayed until the Mid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97461051d54dc449b3bfa3a20f6eed7f
https://doi.org/10.1666/06-131.1
https://doi.org/10.1666/06-131.1
Autor:
Joseph F. Pachut, Robert L. Anstey
Publikováno v:
PALAIOS. 22:476-488
In the Ordovician bryozoan genus, Peronopora, stratigraphic occurrences and cladistic branching order are significantly correlated, indicating sequential development of both patterns in geological time. Five species have stratigraphic first appearanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d7012a869fbb1f02165c5f597dce258
https://doi.org/10.2110/palo.2005.p05-128r
https://doi.org/10.2110/palo.2005.p05-128r
Autor:
Joseph F. Pachut, Robert L. Anstey
Publikováno v:
Journal of Paleontology. 78:651-674
We compare cladistic, phenetic, stratophenetic, and typological methods of recognizing species within a single well-sampled, long-lived Ordovician bryozoan genus, Peronopora Nicholson, 1881. A consensus of 11 methods recognizes 14 species within Pero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d86f12f82945d002da699e35ea1fb23b
https://doi.org/10.1666/0022-3360(2004)078<0651:capros>2.0.co
https://doi.org/10.1666/0022-3360(2004)078<0651:capros>2.0.co
Publikováno v:
Paleobiology. 29:305-328
Area cladograms produced by parsimony analysis of endemicity illustrate historically developed biogeographical associations among Caradocian, Ashgillian, Llandoverian, and Wenlockian bryozoans. Areas in North America, Siberia, and Baltica were organi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d48eec2a0f07b57c1707a8637751886
https://doi.org/10.1666/0094-8373(2003)029<0305:pobett>2.0.co
https://doi.org/10.1666/0094-8373(2003)029<0305:pobett>2.0.co
Publikováno v:
Journal of Paleontology. 76:197-210
Populations of the Upper Ordovician trepostome bryozoan Batostoma jamesi were collected from two different paleoenvironmental settings in the Kope Formation of southeastern Indiana. Within each colony and population, morphologic changes were analyzed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::213f0d049f5a68f0b194e0225174dd30
https://doi.org/10.1666/0022-3360(2002)076<0197:cicdih>2.0.co
https://doi.org/10.1666/0022-3360(2002)076<0197:cicdih>2.0.co
Publikováno v:
Journal of Paleontology. 76:197-210
Populations of the Upper Ordovician trepostome bryozoanBatostoma jamesiwere collected from two different paleoenvironmental settings in the Kope Formation of southeastern Indiana. Within each colony and population, morphologic changes were analyzed d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85b70f9cf28d3311a5ce097bc7b1b970
https://doi.org/10.1017/s0022336000041639
https://doi.org/10.1017/s0022336000041639