Nut of Juglans bergomensis (Balsamo Crivelli) Massalongo in the Miocene of North America

AbstractA new occurrence of fossil butternut is recognized based on a permineralized highly scabrate walnut from the middle Miocene of western Washington, USA. The specimen fits the circumscription of Juglans bergomensis (Balsalmo Crivelli) Massalongo, a species that was widespread in Europe and Asia during the Neogene. The occurrence near Brady, Washington, supplements the previously recognized occurrence from Banks Island, Canada, indicating a distribution in mid-latitude western North America as well as Europe and Asia during the Miocene.

Download Full-text

North American earthworms native to Vancouver Island and the Olympic Peninsula

Canadian Journal of Zoology ◽

10.1139/z94-176 ◽

1994 ◽

Vol 72 (7) ◽

pp. 1325-1339 ◽

Cited By ~ 9

Author(s):

Dorothy McKey-Fender ◽

William M. Fender ◽

Valin G. Marshall

Keyword(s):

New Species ◽

North America ◽

North American ◽

Vancouver Island ◽

Island Population ◽

Western North America ◽

Olympic Peninsula ◽

Forest Region ◽

Western Washington

The following native earthworms from the spruce-hemlock forest region of western North America are described: Lumbricidae: Bimastos lawrenceae Fender, n.sp. from Vancouver Island; Megascolecidae: five new species of Arctiostrotus McKey-Fender, 1982, including A. vancouverensis McKey-Fender, n.sp. from Vancouver Island and the Olympic Peninsula, A. pluvialis McKey-Fender, n.sp. and A. adunatus McKey-Fender, n.sp. from the Olympic Peninsula, A. fontinalis McKey-Fender, n.sp. from northwestern Oregon and western Washington, and A. johnsoni McKey-Fender, n.sp. from western Washington. The known species A. perrieri (Benham, 1892) and A. altmani (Gates, 1942) are redescribed, as is the Vancouver Island population of Toutellus oregonensis (Smith, 1937). Ecology, biology, and references to some associated biota and a key are included.

Download Full-text

Trochodendraceous Fruits and Foliage in the Miocene of Western North America

Fossil Imprint ◽

10.2478/if-2018-0004 ◽

2018 ◽

Vol 74 (1-2) ◽

pp. 45-54 ◽

Cited By ~ 4

Author(s):

Steven R. Manchester ◽

Kathleen B. Pigg ◽

Melanie L. Devore

Keyword(s):

North America ◽

Middle Miocene ◽

East Asian ◽

Western North America ◽

Leaf Type ◽

Asian Species ◽

Fossil Fruit ◽

Northern Idaho ◽

New Occurrences

Two fossil fruit types and at least one fossil leaf type representing Trochodendraceae are recognized from the middle Miocene Cascadia flora of western Oregon, USA. Trochodendron rosayi sp. nov., known also from the middle Miocene of eastern Oregon and northern Idaho, is based on long-pedicelled, apically dehiscent capsular fruits with 7-9 persistent outcurved styles, very similar to the extant monotypic east Asian species T. aralioides. Concavistylon kvacekii gen. et sp. nov. is named for a racemose infructescence bearing shortly pedicellate, apically dehiscent capsules with 4 to 5 persistent incurved styles arising from the basal 1/3 of the fruit. Leaves associated at the Moose Mountain locality are recognized as Trochodendron postnastae sp. nov. They have basally acrodromous venation with a prominent midvein bracketed by a pair of strongly ascending basal secondaries and are thought to correspond to the T. rosayi fruits. These new occurrences demonstrate that greater diversity was present among fossil Trochodendraceae than previously recognized during the Miocene in western North America.

Download Full-text