Upcoming Meetings

Future Colorado Scientific Society Meetings


Click to Join or Renew your Colorado Scientific Society Membership

Note: The Colorado Scientific Society has adopted the federal fiscal year calendar of Oct 1 – Sept 30 for our expenses and membership. The vast majority of our renewals start late in the calendar year (~Nov) and dribble into the following spring (~March) with very few received outside that window.

Check the FY 2026 CSS Paid Membership List for your status.


We normally hold monthly meetings from September through May.
Our meetings are both in-person and virtual.

Meetings are normally on the third Thursday of the month.

All are welcome – no admission charge
Join us at in-person after 6:30 pm for social time before the meeting. (The CSS Past Presidents’ Dinner social time starts at 5:30.)
Join Zoom meetings after 6:45
Meeting and Program begin at 7:00


Colorado Scientific Society 2026 Past Presidents’ Dinner and Program

Reconstructing a Cretaceous Arctic marine ecosystem and tackling a fossil “who-dung-it” mystery

Dr. Karen Chin, University of Colorado, Boulder
CU Museum of Natural History

Dr. Karen Chin
Dr. Karen Chin

Dinner and presentation at the Mount Vernon Canyon Club
24933 Clubhouse Circle, Golden, CO 80401
(on Lookout Mtn., off I-70)

Mount Vernon Canyon Club
Mount Vernon Canyon Club

We are in Canyon Room with it’s balcony overlooking Clear Creek and the Divide. It is accessed by both stairs and an elevator.

Aspen room terrace
Aspen room terrace

Social Time 5:30 pm
Dinner Service 7:00 pm
Program 8:00-9:00 pm

Everyone is welcome.

Menu

Dinner Buffet with Cash Bar

$70 regular
$30 student
(for the first 10 students)

Salads:

  • Mixed Green Salad (GF): Mixed greens, blue cheese crumbles, granny smith apples, and pecans served with maple vinaigrette dressing
  • Peach Panzanella Salad: Peaches, raspberries, grilled ciabatta, arugula, Bermuda Onion and goat cheese with white balsamic vinaigrette

Entrées:

  • Colorado Pan Seared Chicken (GF): Frenched chicken breast, poblano sauce, corn relish
  • Peach Pork Chop (GF): Colorado Inspired with peach chutney

Starch: Maple roasted sweet potato hash (GF)
Vegetable: Bistro seasonal vegetables (GF)
Rolls with butter
Drinks: Coffee, Tea, Iced tea
Dessert: Petite Gourmet Dessert Display: Chocolate cup mousse, Key lime pie cup

Online Registration and Payment via PayPal

Please make online reservations by Monday, September 7th.

Click to Register online for the CSS Past Presidents' Dinner


Use this form to Register for CSS Past Presidents’ Dinner by USPS mail with a check.
Send in Reservation by USPS with check


The presentation will also be available via Zoom.
The link to join the Zoom meeting will be posted here later.


Reconstructing a Cretaceous Arctic marine ecosystem and tackling a fossil “who-dung-it” mystery

Dr. Karen Chin, University of Colorado, Boulder
Professor and Curator of Paleontology, CU Museum of Natural History

Mesozoic Arctic Ocean
Mesozoic Arctic Ocean

Abstract: Fossil evidence from Devon Island in the Canadian High Arctic sheds light on a marine ecosystem that flourished in the warm temperate Arctic during the greenhouse world of the Cretaceous. A thick sedimentary sequence of the Kanguk Formation preserves dense concentrations of planktonic microfossils, modest numbers of invertebrate and vertebrate fossils, and innumerable coprolites (fossil feces). These fossils reveal a surprisingly productive ancient ecosystem and shed light on paleoenvironmental conditions in the Cretaceous Arctic. But why are many more coprolites than body fossils found in the area, and who produced the feces? Recent research helps answer the “who” and “why” of this “who-dung-it” mystery.

Karen Chin
Karen Chin

Dr. Karen Chin studies the structure & dynamics of Mesozoic ecosystems. Her work focuses on how ancient communities of organisms differed from those in modern ecosystems, and what types of interactions occurred within vertebrate communities and the environments they shared. She is renowned as a leading expert in the study of coprolites (fossilized feces) and employs a multidisciplinary approach involving geological, biological, and chemical characteristics of coprolites, trace fossils and body fossils. Her work focuses on understanding interactions among ancient organisms, and deducing the environmental conditions in which these organisms lived and were fossilized.

Also see:
Discovering the Past Through Dino Poop

Episode #40 Who Dung It? with Karen Chin | Paleo Nerds

Flyer for 2026 Colorado Scientific Society Past Presidents’ Dinner


Online Registration and Payment via PayPal

Please make online reservations by Monday, September 7th.

Click to Register online for the CSS Past Presidents' Dinner


Use this form to Register for CSS Past Presidents’ Dinner by USPS mail with a check.
Send in Reservation by USPS with check


Colorado Scientific Society Presidents at 2025 CSS Past Presidents' DinnerNed Sterne 2022, Bob Raynolds 2018, Tom Casadevall 2019, Jeff Pigati 2024, Matt Sares 2013, Pete Modreski 2012, James Paces 2020, Karl Kellogg 1997, Steve Sonnenberg 1992, Cal Ruleman 2023, Bill Nesse 2007, Scott Minor 2010
Colorado Scientific Society Presidents at 2025 CSS Past Presidents’ Dinner Ned Sterne 2022, Bob Raynolds 2018, Tom Casadevall 2019, Jeff Pigati 2024, Matt Sares 2013, Pete Modreski 2012, James Paces 2020, Karl Kellogg 1997, Steve Sonnenberg 1992, Cal Ruleman 2023, Bill Nesse 2007, Scott Minor 2010

Pictures of the Past Presidents of the Colorado Scientific Society taken at earlier Past Presidents’ Dinners



Geological Society of America
GSA Connects 2026 Annual Meeting

October 11-14, 2026
Colorado Convention Center, Denver, Colorado

Plans are in progress for CSS to share an exhibit hall booth at the meeting with the Friends of Dinosaur Ridge

Several field trips on the meeting program will be led or co-led by CSS members.

The Colorado Scientific Society will be hosting a Topical Session:
Peaks, Plains, and Plateaus: 150 years of Colorado Science Discoveries



CSS October Meeting

Thursday, October 15, 2026

Dr. Josh Lively, Curator of Paleontology
Utah State University Eastern, Prehistoric Museum

In-person Meeting at Calvary Church, Golden

All are welcome – no admission charge
Join us at in-person after 6:30 pm for social time before the meeting.
Join Zoom meetings after 6:45
Meeting and Program begin at 7:00

The Link to Join CSS October Meeting via Zoom will be posted here later

The details about attending the meeting in person at the Golden Calvary Church follow the details about the talk.

Mosasaurs are one of Blake Lively's main research interests
Mosasaurs are one of Blake Lively’s main research interests

Speaker

Dr. Josh Lively
Dr. Josh Lively

Joshua Lively, Ph.D., is the Curator of Paleontology at the Prehistoric Museum in Price, Utah. His main research interest is the spatial and temporal change in ecosystems – both freshwater and marine – during the Late Cretaceous, or last 34 million years of the Age of Dinosaurs. Lively’s specialties include turtles and mosasaurs, as both groups are well represented in the fossil record. He has spent the last 15 years conducting fieldwork in Utah and beyond.

In-person Meeting at Calvary Church, Golden

Enter off 14th Street, see map below.
All are welcome – no admission charge
6:30 pm – Social time starts
6:45 pm – Join Zoom meeting, if attending remotely
7:00 PM – Meeting starts.
Please arrive early. Church doors are locked, and you must text someone to get in after 7:00 pm.

Calvary Church in Golden. Enter at arrow on map.
Calvary Church in Golden. Enter at arrow on map.

1320 Arapahoe St, Golden, CO 80401
Click on link to open a Google map.

Enter off 14th St., going in via the main glass doors on 14th St.
Do not enter the old church above 13th St.
Go through building following the CSS signs to the Community Rooms 1 and 2, where we meet.

The church doors must stay locked, and we will have a person to let you in at the doors off 14th St.
They want to see the presentation too, so please arrive before 7:00 pm.
There will be a phone number that you can text to be let in if you arrive late.

Parking
On street parking is available close by, west of Washington Ave in downtown Golden.
The “Public Parking” NE of the Church is free for registered church members but not for us. Lowest parking rate is $5.75 for three hours; one pays using a QR code shown on signs there. For that parking rate, it says one is supposed to park on the upper (roof top) level. When driving uphill (southwest) on 14th St, the rooftop entrance is the 2nd entrance to the parking structure, immediately before the church.

For free parking: 14th Street usually has parking within a block of the entrance to the Church.
Coming from the north (CO 93) or northeast (CO 58, between North and South Table Mountains), come southeast on Washington Street, turn right (southwest) on 13th Street, Turn left on Cheyenne St. Go up the hill and turn left on 14th Street. Park on your right.
Coming from the east or or southeast on US 6 (6th Ave.), exit US 6 onto 19th St. going NE. Turn left on Illinois St. Go through the Mines campus and turn right on 14th St. If you can, park NE of Cheyenne St.

When 14th Street is full, Mines may have scheduled an event.
There is Golden city parking southwest of downtown Golden. This is downhill from (northwest of) the Church in the half block between 13th and 12th streets, between Arapahoe St. on the SW and Miners Alley on the NE. There is usually space here. The Foss Lot (SE half of the parking area) is private and says “Paid Parking”. The public Arapahoe Lot (NW half of the parking area) says “Paid Parking 7-5” and should be free.
To get to the meeting, go up the hill along the church by Arapahoe St.

You can also find parking in the streets below (north of) the Church and west of downtown Golden.

Copies of The Geology of Boulder County by Raymond Bridge (2004) are available for $20.



CSS November Meeting
Poster Night with Lightning Talks

Thursday, November 19, 2026

For Students and Early Career Earth Scientists

In-person Meeting at Calvary Church, Golden



CSS December Pot Luck Dinner and
Past President’s Address

December, 2026

Speaker: Amy Atwater, Director of Paleontology, Friends of Dinosaur Ridge
and current President of the Colorado Scientific Society

More details coming



Please pay your CSS dues for 2026!

Click to Join or Renew your Colorado Scientific Society Membership
Membership dues paid in November and December also apply to the following year.

You may pay dues online, or print out a PDF of the membership form and mail it to us with a check. Continuing your membership in CSS will enable us to continue all our ongoing programs, including our field trips, virtual meetings, Student Research Grants, and more.

See Membership and Donations for our online membership payment form and the CSS Membership printable PDF.
Regular Membership – $25;
Student Membership – (any level) $5;
Life Membership – $395.
Send your membership payment, if not done through our online membership payment form, to Colorado Scientific Society P.O. Box 150495 Lakewood, CO 80215-0495.
Thank you!


Meetings are normally on the third Thursday of the month.

All are welcome – no admission charge
Join us at in-person after 6:30 pm for social time before the meeting
Join Zoom meetings after 6:45
Meeting and Program begin at 7:00


See Archives of CSS Talks – Indexed (under Events) for previous Colorado Scientific Society Talks, or just follow the link.

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