Cretaceous wood-boring bivalves from Western Antarctica with a review of the Mesozoic Pholadidae

first_imgAntarctic wood-boring bivalves are described from the Kotick Point Formation, Gustav Group (Early Cretaceous) and the Marambio Group (Late Cretaceous) of the James Ross Island group, and from the Early Cretaceous part of the Fossil Bluff Formation of eastern Alexander Island. They are identified as the pholadid genera Opertochasma, Teredina, Turnus, and Xylophagella. All but Turnus are recorded here from the Antarctic for the first time. The following new species are described: Opertochasma psyche, Teredina jeffersoni, Turnus kotickensis, and Xylophagella truncata. Particularly well-preserved accessory plates occur in Opertochasma and Teredina. The borings containing the bivalves are referred to the ichnogenus Teredolites. Preparation techniques used include serial sectioning and casting in silicone rubbers. The stratigraphical and geographical distributions of the genera and their palaeoecology are briefly discussed. First appearances of world-wide Mesozoic pholadid genera are reviewed and an attempt is made to construct a phylogeny for the early history of the group. Teredolites is known from Pliensbachian time, but the earliest body fossil, ‘Teredo’ australis, is Middle Jurassic in age and of doubtful generic affinity. Opertochasma and Turnus appeared in the Late Jurassic and Xylophagella in the Early Cretaceous. During the Late Cretaceous the group began to flourish and diversify.last_img read more

NCUA launches interactive, online Examiner’s Guide

first_img 6SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr NCUA on Friday launched the online Examiner’s Guide, which is an interactive tool allowing examiners to provide up-to-date, comprehensive supervisory guidance on certain regulatory and supervisory issues affecting credit unions.“Everyone benefits from being on the same page,” said NAFCU Executive Vice President of Government Affairs and General Counsel Carrie Hunt. “We appreciate the new format to allow the dissemination of up-to-date guidance.”The online format of the guide will allow readers to search various topics of interest and better locate related NCUA resources. The agency said the guide also has a feedback button, allowing interested stakeholders to leave their input and suggestions for additional clarification.Under this new format, NCUA will be able to update the Examiner’s Guide continuously, in the event of a new law or regulation. continue reading »last_img read more

Bravo keeping fit during COVID-19 shutdown

first_imgPORT OF SPAIN, Trinidad, (CMC) – A decision to invest in cricket nets at his home has paid dividends for West Indies marquee left-hander, Darren Bravo, especially with the outbreak of the coronavirus pandemic having halted competitive cricket in the Caribbean.The 31-year-old, who recently returned to the West Indies side for the one-day tour of Sri Lanka, said he had been able to stay fit during the break so as to be ready for whenever domestic or international cricket resumed.“A couple months ago I decided to build my own cricket nets at my home. I invested in a bowling machine and stuff like that,” Bravo said.“So I’ve been training. My brother (Dwayne Bravo) comes across from time to time and we do some physical training as well but more so I tend to spend a lot of time in the nets with the bowling machine …“So things have been working out. I’m just trying to stay as fit as possible and trying to improve on my skills as much as possible. Hopefully we can be back out pretty soon.”Cricket West Indies (CWI) has put a pause on its domestic itinerary because of the outbreak and maybe forced to cancel some international series if the pandemic continues to impact the region.Bravo remains one of West Indies’ most experienced batsman with 54 Tests and 113 One-Day Internationals under his belt.However, he was dropped last October for tours of Afghanistan and India following a poor run of form, resulting from a protracted layoff owing to a public spat with former Cricket West Indies president, Dave Cameron.He scored heavily in both the recent Super50 Cup and the first class championship and though he never got going in the three-match series against the Sri Lankans, an 88-ball hundred in a warm-up against a Sri Lanka Cricket XI was enough to convince many of his return to form.“I had the opportunity to go back and play in the Super50 and I think I did well,” Bravo said.“I think the opportunity to come back play more cricket and spend more time out in the middle, that did a lot for me and gave me a lot of confidence to move forward.”He added: “[There were] not ideal performances [in Sri Lanka] but I think the camaraderie and the way we went about playing Sri Lanka, I think [captain] Kieron Pollard and [coach] Phil Simmons are doing a fantastic job.“All in all, the team is coming along nicely. Obviously the people in the team is our strong point but having said that, the team is gelling nicely and I’m sure in the not too distant future as long as we continue playing as a team and keep believing in ourselves, things can change for us.”last_img read more