Claim · model-written summary
Some seeds in the Early Permian assemblage are remarkably similar to Agathis and of Cretaceous age.
- Taxon
- seed plantsSpermatophytae0
- Outcome
- remarkably similar to Agathise6
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
e0“Early Permian (late Leonardian Series) plant assemblages from King, Knox, and Stonewall Counties of North-Central Texas are dominated by seed plants”
e6“a variety of seeds, some remarkably similar to Agathis, of Cretaceous age”
Title
AN EARLY PERMIAN FLORA WITH LATE PERMIAN AND MESOZOIC AFFINITIES FROM NORTH-CENTRAL TEXAS
WILLIAM A. DiMICHELE; SERGIUS H. MAMAY; DAN S. CHANEY; et al. Journal of Paleontology 2001. doi:10.1666/0022-3360(2001)075<0449:aepfwl>2.0.co;2
Other claims from this paper (13)
- Observation Early Permian plant assemblages in north-central Texas are dominated by seed plants.
- Observation Conifers are the dominant elements of the Early Permian flora.
- Observation Ullmannia occurs in the Early Permian flora and is known from the Late Permian Zechstein flora of Germany and England.
- Observation Pseudovoltzia liebeana occurs in the Early Permian flora and is known from the Late Permian Zechstein flora of Germany and England.
- Observation Podozamites sp. is characteristic of the Mesozoic.
- Observation Walchia sp. is abundant in Early Permian floras.
- Observation Taeniopteris cf. eckardtii is locally common and is a Zechstein species.
- Observation Dioonitocarpidium, a presumed cycad megasporophyll, is known only from the Mesozoic.
- Observation Dicranophyllum leaf fragments are rarely encountered and belong to a Paleozoic ginkgophyte.
- Observation Wattia is typical of the Early Permian.
- Observation Derived lineages in xeric habitats during the Early Permian indicate that some supposed Mesozoic groups preceded and survived the end-Permian extinction.
- Observation Only rare scraps of foliage and seeds are attributable to pteridophyllous elements in the assemblage.
- Observation The fossil plants occur in multistorey, fining-upwards, tidal-channel deposits.